Dentist Abroad
Consent is needed from a patient to share information. Which of the following needs explicit consent?
1) To share information with an insurance company
2) To share information with other doctors in the practice
3) To share information with the therapist treating the patient
4) To share information with the patient's GP
Sharing information with an insurance company typically requires explicit consent due to privacy concerns and regulations.
The drug of choice for the treatment of thyrotoxicosis during pregnancy is?
1 Carbimazole
2 Iodine therapy
3 Propylthiouracil
4 Metimazole
Thyroid inhibitors b) Inhibit iodine trapping (ionic inhibitors): Thiocyanates, Perchlorates, Nitrates. c) Inhibit hormone release: Iodine, NaI, Kl
a) Inhibit hormone synthesis (anti thyroid drugs): Propylthiouracil, Methimazole, Carbimazole
d) Destroy thyroid tissue: Radioactive iodine
What is the primary reason for using single-use items in
dentistry?
1) To save costs
2) To enhance patient comfort
3) To prevent cross-contamination
4) To reduce waste
Single-use items are primarily used to prevent cross-contamination and reduce the risk of infection, ensuring patient safety during dental procedures.
What is the GDC's requirement for the storage of patient records?
- They must be kept in a secure, locked cabinet
- They must be kept in a fireproof safe
- They must be kept in a format that is easily accessible and understandable
- They must be kept in a location that is accessible only to the dentist
The GDC requires that patient records be kept in a format that is easily accessible and understandable to ensure that dental professionals can provide effective care based on accurate and up-to-date information.
The basic principle of Orthodontic spot welder lies on the concept of :-
1 Heat technique
2) Quenching
3) Diodelasers
4) Electrode Technique
SOLUTION The type of welding used to join Orthodontic components is called Spot welding.
1. Transmit current to the metals to be joined so as to cause a rapid increase in temperature.
2. The electrodes help in conducting the heat produced away from the area so as to preserve the properties of stainless steel around the weld spot.
3. The electrode also help in holding together the two metals to be joined.
4. The electrodes are designed to apply pressure on the metals being joined. As soon as the temperature increases, the pressure exerted by the electrodes helps in squeezing metal into each other.
In an Angle Class I occlusion, the:
1) Distal inclined plane of the maxillary canine articulates with the mesial inclined plane of the mandibular canine.
2) Mesial inclined plane of the maxillary canine articulates with the distal inclined plane of the mandibular canine.
3) The primary canines are end-to-end.
4) The permanent canines are end-to-end.
This articulation pattern reflects the normal occlusal relationship in Angle Class I, ensuring proper alignment and functional harmony of the dentition.
What is the most common cause of malignant hyperthermia during GA?
1) Halothane.
2) Ketamine.
3) Sevoflurane.
4) Desflurane.
ADC Test Answer: 1
Malignant hyperthermia is a life-threatening condition triggered by certain anesthetic agents, most commonly halothane, which leads to hypermetabolism in skeletal muscles and can cause muscle rigidity, high temperature, and acidosis.
In which situation is informed consent NOT required?
1) Routine dental cleaning
2) Emergency surgery
3) Elective surgery
4) Clinical trials
In emergency situations where delaying treatment could be dangerous, informed consent may not be required.
Which of the following anaesthetic has beta blocker action:
1) Halothane
2) Isoflurane
3) Methoxyflurane
4) Nitrous oxide
Halothane produces l3-blocker like action ie., direct depression of myocardium and bradycardia (negative inotropic and negative chronotropic effect).
Which nerve is affected if a patient is unable to gaze laterally to the left?
1) Right abducent
2) Right trochlear
3) Left abducent
4) Left trochlear
The left abducent nerve (cranial nerve VI) innervates the lateral rectus muscle, which is responsible for lateral eye movement.
What is the best method for securing the airway of a patient with a cleft palate during a dental procedure?
1) Use of a nasal airway
2) Use of an oral airway
3) Intubation
4) Oxygen via a face mask
Patients with cleft palates often have compromised airways, making intubation the safest and most reliable method of airway management during dental procedures that require sedation or general anesthesia.
Which of the following is a contraindication for the use of local
anesthesia in a geriatric patient?
1) Hypertension
4) Cardiovascular disease
3) Diabetes
4) All of the above
All of the listed conditions can influence the patient's response
to local anesthetics. It is important to carefully consider the patient's
medical history and current medications before administering local anesthesia.
What is the depth of topical anesthesia?
1) 1 mm
2) 2 mm
3) 3 mm
4) 4 mm
Topical anesthesia typically penetrates to a depth of about 2 mm, providing localized pain relief for procedures involving the mucosa.
A patient on diuretics may experience which oral side effect? 1) Xerostomia (dry mouth) 2) Gingival hyperplasia 3) Stomatitis 4) Facial swelling
Pathology and Medicine Answer: 1Diuretics can lead to xerostomia, commonly observed in patients on long-term antihypertensive therapy.
Which antihypertensive agent is a direct renin inhibitor?
1) Aliskiren
2) Ramipril
3) Valsartan
4) Verapamil
Aliskiren directly inhibits renin, reducing the production of angiotensin I and lowering blood pressure.
Which of the following is NOT a method for sterilizing dental instruments?
1) Autoclaving
2) Dry heat
3) Chemical vapor sterilization
4) Microwave sterilization
Microwave ovens are not designed for sterilization purposes and can
cause uneven heating and potential damage to instruments. Autoclaving, dry heat,
and chemical vapor sterilization are all valid methods for sterilizing dental
instruments.
Which of the following local anaesthetic is sympathomimetic:
1) Cocaine
2) Procaine
3) Lignocaine
4) Tetracaine
Cocaine is a sympathomimetic local anaesthetic and thus adrenaline should not be added to it.
Which of the following conditions might warrant caution when using benzodiazepines?
1) Young adults
2) Pregnant women
3) Healthy athletes
4) Non-smokers
Caution is especially required when prescribing benzodiazepines to pregnant women due to potential risks and complications that could affect fetal health, including withdrawal symptoms and respiratory problems in the neonate.
Thymol is preservative used for:
1) Halothane
2) Isoflurane
3) Desflurane
4) Enflurane
Halothane can be decomposed by light so stored in amber colour bottles and contains thymol 0.01 % as preservative.
Strength and hardness of a gypsum model or cast are affected by water-powder ratio and porosity of cast
What factor can enhance the bicarbonate-mediated acid-neutralizing effect of saliva?
1) High-fat diet
2) Decreased salivary flow
3) Increased salivary flow
4) Sleep
Increased salivary flow naturally raises bicarbonate levels in the saliva, which helps to neutralize acids in plaque more effectively, protecting against enamel demineralization and promoting oral health.
Which of the following is common to all forms of hemorrhagic shock?
1) Sepsis.
2) Hypovolemia
3) Impaired tissue perfusion.
4) Vasoconstriction.
Hemorrhagic shock results in inadequate oxygen delivery to tissues due to reduced blood volume.
What is the characteristic radiographic feature of distoangular impaction?
1) The tooth is horizontally positioned
2) The tooth is tilted towards the ramus
3) The tooth is tilted towards the tongue
4) The tooth is completely embedded in the bone
Distoangular impaction occurs when the tooth is tilted towards the ascending ramus of the mandible, making it challenging to remove due to the need for significant bone removal.
A woman aged 48 years visits a dermatologist to have a mole removed. The patient tells her physician that she got allergic reaction to a local anaesthetic the last time she had undergone dental work. Investigation of the lady's dental records by her dentist discloses that the patient received procaine for a tooth extraction. Among the following alternatives, which drug would be suitable for the present procedure?
- Benzocaine
- Chloroprocaine
- Tetracaine
- Mepivacaine
Two classes of local anaesthetics exist namely: Esters and Amides.
Hyperemia of the pulp is
1) an acute inflammation with intermittent paroxysms of pain which may become
continuous.
2) an increased volume of blood within dilated vessels and increased blood flow.
3) a chronic situation whereby minute arterioles of pulpal tissue are engorged
for long periods creating temporary
episodes of pain.
4) a transient invasion of bacterial elements into the outer lying stroma of the
pulpal tissue.
Hyperemia refers to an increase in blood flow to the pulp, often due to inflammation or irritation. This condition can lead to symptoms such as pain and sensitivity.
Extraction of a distoangular impaction of the mandibular third molar can cause:
1) Slippage in the lingual pouch
2) Fracture of the ramus of the mandible
3) Excessive hemorrhage
4) Dry socket
Distoangular impactions are particularly challenging due to their
position and the extensive bone removal required for extraction. This can weaken
the ramus of the mandible, making it more susceptible to fracture during the
extraction process. The risk of fracture is a significant concern for surgeons
when dealing with this type of impaction.
The best way to clean a cavity before the placement of GIC is:
1) H2O2
2) Phosphoric Acid
3) Polyacrylic acid
4) Saline
ADC Test Answer: 3
Polyacrylic acid is recommended for cleaning a cavity before using GIC as it helps create an effective bond while preserving the integrity of dentin moisture.
Thiamine is useful in:
1) Collagen synthesis
2) Clotting factor production
3) Epithelial integrity
4) Cellular energy production
ADC Test Answer: 4
Thiamine (Vitamin B1) is a vital coenzyme in the metabolism of carbohydrates, playing a crucial role in the production of energy.
What is the advantage of using electronic patient records over paper records?
- They take up less physical space
- They are more easily accessible and less prone to loss
- They are more difficult to alter
- They are less expensive
Electronic records can be accessed and retrieved more quickly and are less likely to be misplaced or damaged than paper records.
Bitewing radiography is the main special test used to help in the diagnosis of proximal caries. What is a reasonable summary of the diagnostic accuracy of bitewing radiography for proximal caries diagnosis?
1) Moderate sensitivity and low specificity
2) Moderate sensitivity and moderate specificity
3) High sensitivity and high specificity
4) High sensitivity and moderate specificity
Bitewing radiography is known for its high sensitivity and specificity in detecting proximal caries, making it a valuable diagnostic tool.
Which of the following is NOT a benefit of computerized patient records?
1) Reduced frequency of errors
2) Increased costs
3) Improved patient safety
4) Enhanced data protection
While there may be initial costs associated with implementing EDR systems, the long-term benefits include reduced errors and improved safety.
A patient telephones and tells you he has just knocked out his front tooth but
that it is still intact. Your instructions should be to
1) put the tooth in water and come to your office at the end of the day.
2) place the tooth in milk and come to your office immediately. .
3) put the tooth in alcohol and come to your office immediately.
4) place tooth under the tongue and come to your office immediately.
Placing an avulsed tooth in milk is recommended because it helps preserve the vitality of the periodontal ligament cells. Milk has a similar osmolality to that of human cells, which can help keep the cells alive until the patient can receive professional dental care. Immediate treatment is crucial for the best chance of successful re-implantation.
Which of the following is a critical component of a patient's medical history in dental records?
1) Patient's favorite color
2) List of systemic diseases
3) Patient's social media accounts
4) Financial status
A thorough medical history should include relevant health information, such as systemic diseases, to inform treatment decisions.
Which is the most common jaw cyst in the UK?
1) Dentigerous cyst
2) Radicular cyst
3) Odontogenic keratocyst
4) Nasopalatine duct cyst
The radicular cyst is the most prevalent type of jaw cyst, commonly associated with non-vital teeth.
The gas with greatest solubility in blood:
- Nitrous oxide
- Nitrogen
- Oxygen
- Hydrogen
Although the solubility of nitrous oxide in blood is less than other inhalational agents, its solubility is 35 times more than nitrogen and 15 times more than oxygen.
The DMF index is commonly used to measure:
1) Oral hygiene
2) Dental radiograph efficacy
3) Prevalence and severity of dental caries
4) Tooth mobility
The Decayed, Missing, and Filled teeth (DMF) index is a standard epidemiological tool to assess the burden of dental caries in populations.
What is the significance of the BPE score in periodontal assessment?
1) It measures the depth of periodontal pockets.
2) It assesses the presence of calculus.
3) It evaluates the overall oral hygiene status.
4) It indicates the need for periodontal treatment.
The Basic Periodontal Examination (BPE) score helps determine the need for further periodontal assessment and treatment based on pocket depth and other clinical findings.
Which of the following is NOT one of the Four Cs of record keeping?
- Clear
- Comprehensive
- Concise
- Contemporaneous
The Four Cs of record keeping are Contemporaneous, Clear, Concise, and Complete.
The use of fluoride in treating root surface caries aims to protect:
1) Enamel
2) Dentin and cementum
3) Pulp
4) Cuticle
ADC Test Answer: 2
Fluoride application helps to strengthen dentin and cementum surfaces against carious lesions, offering protection from decay.
About lidocaine all are true, except:
1) Dose need to altered in renal failure
2) Loading dose before infusion
3) It is little effected by heat & pH
4) Prolongs refractory period
Local anesthetics are poorly water soluble and this limits their renal excretion (of unchanged drug) to less than 5%.
If a cut is made below the cricoid cartilage, which structure might be injured?
1) Inferior laryngeal nerve
2) Recurrent laryngeal nerve
3) Superior laryngeal nerve
4) Both A and B
The recurrent laryngeal nerve runs below the cricoid cartilage and
supplies all the intrinsic laryngeal muscles except for the cricothyroid muscle,
which is supplied by the superior laryngeal nerve. Inferior laryngeal nerve (which supplies the cricothyroid muscle) Recurrent laryngeal nerve (which supplies all other intrinsic laryngeal
muscles except the cricothyroid muscle)
In a patient shot in the back of the head with the bullet passing through the forehead, which bones are least likely to be damaged? 1) Maxilla and temporal 2) Frontal and parietal 3) Occipital and sphenoid 4) Zygoma and ethmoid
Anatomy Answer: 1The trajectory of the bullet from the back of the head to the forehead is less likely to involve the maxilla and temporal bones compared to the others.
A woman aged 48 years visits a dermatologist to have a mole removed. The patient tells her physician that she got allergic reaction to a local anaesthetic the last time she had undergone dental work. Investigation of the lady's dental records by her dentist discloses that the patient received procaine for a tooth extraction. Among the following alternatives, which drug would be suitable for the present procedure?
1) Benzocaine
2) Chloroprocaine
3) Tetracaine
4) Mepivacaine
Two classes of local anaesthetics exist namely: Esters and Amides. The rule of thumb describes that in case you are allergic to one drug in a given class (generally the ester class), you will also be allergic to other drugs of the same class. The lady received procaine which is an ester in the present case. Hence, we need to identify Amide in the list of answers. Mepivacaine is the only amide listed here.
A dental hygienist notices that a child has multiple untreated dental caries and appears malnourished. What should be the hygienist's first action?
1) Discuss with the child’s parents
2) Document the findings
3) Report the situation to child protective services
4) Schedule a follow-up appointment
As a mandated reporter, the hygienist must report suspected neglect to the appropriate authorities when a child’s well-being is at risk.
What is the role of sIgA in the protection against dental caries?
1) It directly neutralizes bacterial acids.
2) It promotes the growth of beneficial bacteria in the oral cavity.
3) It binds to bacteria and prevents them from adhering to tooth surfaces.
4) It provides structural support to tooth enamel.
Secretory immunoglobulin A (sIg1) is a salivary antibody that can bind to cariogenic bacteria, limiting their ability to colonize and produce acids on the tooth surface.
What is the role of dental records in forensic dentistry?
- To establish the identity of a deceased person
- To determine the cause of death
- To evaluate the dental health of the general population
- To monitor dental insurance fraud
Antemortem records can be used by forensic odontologists to help identify individuals in the event of death.
Which of the following drug can be accumulated in foetus in very significant amount if given to pregnant mother:
1) Thiopentone
2) Propofol
3) Midazolam
4) Lignocaine
Local Anesthesia Answer: 4
Lignocaine Local anaesthetic and opioids are bases.
For a cast gold restoration, a gingival bevel is used instead of a shoulder
because a bevel
1. Protects the enamel.
2. increases retention.
3. Improves marginal adaptation.
4. Increases the thickness of gold
1) (1) (2) (3)
2) (1) and (3)
3) (2) and (4)
4) (4) only
A gingival bevel is preferred in cast gold restorations because it protects the enamel (1) by reducing the risk of enamel fracture and improves marginal adaptation (3) by allowing for a more favorable angle for the gold to fit against the tooth structure. This results in a better seal and less chance of microleakage, enhancing the longevity of the restoration.
Dental health education doesn’t include:
1) Heredity
2) Human biology
3) Hygiene
4) Habits
The correct answer is heredity. Dental health education typically includes
topics such as human biology, hygiene, and habits. Heredity refers to the
passing down of traits from parents to offspring, and while it may play a role
in dental health, it is not typically a focus of dental health education.
Cardio stable anaesthetic:
1) Etomidate
2) Propadanil
3) Ketamine
4) Thiopental
Etomidate is considered a cardio-stable anaesthetic.
The smallest and most inaccessible root canal-in the maxillary second molar is the 1. faciolingual 2. mesiobuccal 3. lingual 4. distobuccal
Dental Anatomy Answer: 4The smallest and most inaccessible root canal-in the maxillary second molar is the distobuccal
What antibiotic is commonly prescribed for chronic sinusitis?
1) Amoxicillin
2) Doxycycline
3) Azithromycin
4) Ciprofloxacin
Doxycycline is often used to treat chronic sinusitis due to its effectiveness against a range of bacteria that can cause sinus infections.
What are the main categories of dental records? 1) Diagnostic, treatment, and financial 2) Medical, dental, and surgical 3) Administrative, clinical, and radiographic 4) Patient, treatment, and billing
Dental Records Answer: 3Dental records are generally categorized into three main types: administrative, which include patient information and appointment details; clinical, which encompass the patient's medical and dental history, treatment notes, and progress; and radiographic, which are the imaging studies such as x-rays used to diagnose and plan treatment.
The nerve supply of the pulp is composed of which type of nerve fibers?
1) Afferent & sympathetic
2) Efferent & sensory
3) Motor & autonomic
4) Motor & sensory
ADC Test Answer: 1
The pulp receives sensory (afferent) fibers, mainly from the trigeminal nerve, and sympathetic fibers that regulate blood flow.
What fluoride treatment is recommended for a child with a high caries rate?
1) 2,800 ppm toothpaste
2) 5,000 ppm toothpaste
3) Application of 2.2% Duraphat 2 times yearly
4) Application of 2.2% Duraphat 3-4 times yearly
For children with a high caries rate, more frequent applications of fluoride varnish like Duraphat are recommended to provide additional protection.
What is the primary function of salivary IgA?
1) To neutralize bacterial toxins
2) To prevent bacterial adhesion to tooth surfaces
3) To initiate the immune response against caries-causing bacteria
4) To provide a source of calcium for remineralization
Salivary IgA is an antibody that specifically targets bacteria in the mouth, helping to prevent their colonization and the initiation of the caries process.
The growth of the alveolar process has a major effect on
1) Anteroposterior jaw relationship
2) Vertical jaw relationship
3) Both
4) None of the above
False statement regarding phenytoin is?
1) It is a teratogenic drug
2) Highly protein bound
3) Induces insulin secretion
4) Follows saturation kinetics
Phenytoin inhibits insulin secretion and causes hyperglycemia.
Immediately following the closure of the A-V valves is the period of 1. Isotonic contraction 2. Isometric contraction 3. Isometric relaxation 4. Isotonic relaxation
Anatomy Answer: 3Immediately following the closure of the A-V valves is the period of Isometric relaxation
Which antibiotics are commonly used for periodontitis?
1) Amoxicillin and Clindamycin
2) Tetracycline and Penicillin V
3) Ciprofloxacin and Metronidazole
4) Azithromycin and Doxycycline
While Tetracycline and Penicillin V are antibiotics that can be used to treat periodontal infections, they are not as commonly prescribed as Azithromycin and Doxycycline, which are both effective against the anaerobic bacteria often implicated in periodontitis. Azithromycin is a macrolide antibiotic and Doxycycline is a tetracycline derivative. These medications are commonly used due to their broad spectrum of antimicrobial activity and their ability to penetrate into the periodontal tissues effectively. They are often prescribed in combination with other antibiotics or as part of a systemic antimicrobial therapy for the treatment of moderate to severe periodontitis
What is the difference between a horizontal mattress suture and a simple interrupted suture?
1) A horizontal mattress suture has a single loop, while a simple interrupted suture has multiple loops.
2) A horizontal mattress suture is used to compress tissues, while a simple interrupted suture is not.
3) A simple interrupted suture is used to approximate tissues in a straight line, while a horizontal mattress suture is used for more complex tissue relationships.
4) Both sutures have the same function and are used interchangeably.
ADC Test Answer: 2
A horizontal mattress suture is designed to compress tissues against each other, promoting healing and reducing tension.
What are effective strategies to decrease polymerization shrinkage of a composite?
1. Incremental placing of composite using techniques like herringbone and lateral filling methods.
Utilizing incremental builds reduces the stress of polymerization shrinkage by minimizing wall-to-wall effects.
Which of the following is NOT an example of dental malpractice?
1) Failure to diagnose oral cancer
2) Intentionally causing harm to a patient
3) Unintentionally causing harm to a patient due to negligence
4) Providing treatment that does not meet the standard of care
Dental malpractice typically involves unintentional acts of
negligence or omission that result in harm to the patient. Intentionally causing
harm is a criminal act and not considered malpractice, although it can lead to
both civil and criminal consequences.
What type of hemorrhage occurs within 24 hours post-operatively due to increased blood pressure or ligature slippage?
1) Primary hemorrhage
2) Intermediate or reactionary hemorrhage
3) Secondary hemorrhage
4) Tertiary hemorrhage
This type of hemorrhage happens when blood pressure rises or the ligature slips, causing bleeding from the surgical site.
Highest analgesic effect is a feature of:
1) Ketamine
2) Thiopentone
3) Propofol
4) Etomidate
Ketamine is a very potent analgesic, providing maximum analgesia among all IV anaesthetics.
While doing preparation for an FMC crown prep on tooth 16 in a 20-year-old man, a pinpoint pulp exposure occurred. How would you best manage the situation?
1) Do DPC immediately under rubber dam then tell the patient about the situation
2) Tell the patient immediately and do pulpotomy
3) Start RCT then describe the situation to the patient
4) Tell the patient that you have encountered an inadvertent incident while preparing and refer him to a specialist
ADC Test Answer: 1
Direct Pulp Capping (DPC) is the most appropriate management strategy for a small pinpoint pulp exposure.
Which of the following is NOT a component that reduces cariogenicity?
1) Sucrose
2) Galactose
3) Lactose
4) Fermented carbohydrates
Fermented carbohydrates are not listed as reducing cariogenicity.
Before performing periodontal surgery, it is important to:
1) Prescribe a mouthwash.
2) Prescribe systemic antibiotics.
3) Control plaque.
4) None of the above.
Controlling plaque is essential to reduce bacterial load, improve healing outcomes, and decrease postoperative complications.
Choose correct statements about flowable composite:
1) Low modulus of elasticity.
2) Lower filler content.
3) Higher polymerization shrinkage.
4) All of the above.
ADC Test Answer: 4
Flowable composites generally exhibit a low modulus of elasticity, lower filler content, and increased polymerization shrinkage compared to traditional composites, making them suitable for specific applications but requiring careful consideration regarding their use.
What is the primary goal of periodontal treatment?
1) Removal of all bacteria.
2) Elimination of plaque.
3) Reduction of inflammation.
4) Regeneration of lost tissue.
E. Prevention of further bone loss.
ADC Test Answer: 3
The primary goal of periodontal treatment is to reduce the inflammation in the gum tissues, which in turn helps in controlling the progression of the disease, maintaining tissue health, and preventing further bone loss.
If a patient on warfarin is also allergic to penicillin, which antibiotic is recommended?
1) Erythromycin
2) Clindamycin
3) Cephalexin
4) Vancomycin
Clindamycin is a suitable alternative for patients allergic to penicillin who are also on warfarin since it does not interact adversely with anticoagulants.
Cleft lip is caused by the failure of which of the following processes to fuse?
1) Maxillary.
2) Maxillary and lateral nasal.
3) Palatine.
4) Maxillary and palatine
Oral Medicine and Oral Pathology Answer: 2Cleft lip occurs when the maxillary and lateral nasal processes fail to fuse during embryogenesis, leading to an incomplete upper lip.
What is the effect on local anesthetic when used with sodium bicarbonate?
- Increases speed and quality of anaesthesia
- Decreases diffusion of the anaesthetic drug
- Causes rapid elimination of the local anaesthetic
- Decreases speed and quality of anaesthesia
The speed of onset of Anaesthesia is raised by Sodium bicarbonate and further enhances its quality by elevating the intensity and duration of block.
What does N1 indicate in the TNM classification?
1) No regional lymph node metastases
2) One ipsilateral node < 3 cm diameter
3) Ipsilateral or contralateral nodes 3-6 cm diameter
4) Lymph node metastasis > 6 cm diameter
N1 indicates the presence of one regional lymph node that is less than 3 cm in diameter, which is significant for staging the extent of cancer spread.
A permanent tooth erupting in the mouth of an 11 years old child is most likely 1. maxillary lateral incisor 2. mandibular second bicuspid 3. maxillary third molar 4. rnandibular central incisor
Dental Anatomy Answer: 2A permanent tooth erupting in the mouth of an 11 years old child is most likely mandibular second bicuspid
What is the largest possible cavosurface angle?
1) 90 degrees
2) 100 degrees
3) 110 degrees
4) 120 degrees
The largest possible cavosurface angle in dental restorations is typically around 110 degrees, which helps in achieving a proper seal and retention.
The term cold sterilization has been employed to refer to 1. physical methods of sterilization 2. prolonged exposure to 20° C 3. exposure to low temperature steam 4. chemical disinfection
Microbiology Answer: 4chemical disinfection is cold strelization
What is TRUE in regards to osteogenesis imperfecta?
1) Manifests with blue sclera
2) May be associated with deafness
3) Sex-linked disorder of bones that develop in cartilage
4) All of the above
ADC Test Answer: 1
Osteogenesis imperfecta is characterized by fragile bones, blue sclera due to thin collagen in the eye, and may also have associations with hearing loss.
What should a dentist do if a patient is unable to provide informed consent
due to language barriers?
1) Proceed with treatment without consent
2) Use a family member as an interpreter
3) Use a professional interpreter or translation services
4) Rely on non-verbal cues from the patient
Dentists should use professional interpreters or translation services to communicate effectively with patients who do not speak the same language. This ensures accurate information is conveyed and that the patient fully understands their treatment options and can make informed decisions.
The major growth sites in mandible are:
1.Anterior surface of ramus
2.Condylar process
3.Anterior part of chin
4. Posterior surface of ramus:
1) 1,2,3
2) 2,4
3) 2,3,4
4) 2,3
•In two ways the overall pattern of growth of the mandible can be represented .It will depend on the frame of reference if both are correct.
On the other hand, it becomes apparent that the principal sites of growth of the mandible are the posterior surface of the ramus and the condylar and coronoid processes if data from vital staining experiments are examined. Along the anterior part of the mandible there is little change
• The chin is almost inactive as a growth site. As the actual growth occurs at the mandibular condyle and along the posterior surface of the ramus it is translated downward and forward. By periosteal apposition of bone on its posterior surface the body of the mandible grows longer , at the condyle accompanied by surface remodeling while the ramus grows higher by endochondral replacement
• Conceptually,wiht is correct to view the mandible as being translated downward and forward,though at the same time it increases in size by growing upward and backward. As the bone moves downward the translation occurs largely. As the bone moves downward and forward along with the soft tissues in which it is embedded the translation occurs largely
What is the role of Campylobacter rectus in dental biofilm
metabolism?
1) It produces formate and hydrogen gas as metabolic byproducts.
2) It has no role in biofilm formation.
3) It is exclusively an aerobic organism.
4) It utilizes formate and hydrogen gas as energy sources.
Campylobacter rectus is capable of using formate and hydrogen gas as energy sources and electron donors for its metabolic activities, which contributes to its role in dental biofilm ecology and metabolism.
The most appropriate gingival contour of a fixed partial denture connector is
1) concave.
2) convex.
3) flat.
4) none
A convex contour ensures proper hygiene by reducing plaque accumulation and
facilitates better gingival health.
Concave contours can trap debris and promote inflammation.
Which of the following is a beta channel antagonist?
1) Verapamil
2) Nifedipine
3) Amplodipine
4) Metoprolol
Metoprolol is a beta channel antagonist because it belongs to a class of drugs known as beta blockers. Beta blockers work by blocking the effects of adrenaline on beta receptors in the body, thereby reducing heart rate and blood pressure. Metoprolol specifically targets beta-1 receptors, which are primarily found in the heart. By blocking these receptors, metoprolol helps to reduce the workload on the heart and improve its efficiency. This makes metoprolol an effective medication for treating conditions such as hypertension, angina, and certain types of heart rhythm disorders.
Not a physical property of propofol:
1) Water based preparation
2) Colour of the solution is white
3) It contains egg lecithin
4) Used as 2% strength
Propofol is oil based preparation containing soybean oil, egg lecithin and glycerol. The colour is milky white and available as 1% and 2% strength.
Which of the following psychological approaches can help manage a patient’s anxiety before their dental visit?
1) Flooding
2) Cognitive Behavioral Therapy (CBT)
3) Avoidance Therapy
4) Hypnosis
CBT can help patients reframe their thoughts about dental experiences, reducing anxiety.
What is the role of the dental nurse in maintaining patient records?
- To make and keep complete and accurate records of patient treatments and discussions
- To handle financial transactions and appointments
- To manage the dental office's social media accounts
- To oversee the sterilization of instruments
Dental nurses are crucial in the record-keeping process as they can take notes during patient appointments, ensuring that the records are made contemporaneously.
An approach to an impacted mandibular molar is achieved by:
1) Envelop flap
2) Bayonet flap
3) L-shaped flap
4) All of the above
All the listed flap techniques (envelop flap, bayonet flap, and L-shaped flap) are types of mucoperiosteal flaps used in oral surgery to access impacted teeth. Each flap has its indications and advantages, and the choice of flap depends on the specific clinical situation. The L-shaped flap, also known as Ward's incision, is commonly used for the removal of impacted teeth due to its effectiveness in providing access while minimizing tissue trauma.
The elastomeric impression material commonly supplied as a base paste & a liquid catalyst is :
1) Polysulfide
2) Condensation silicone
3) Addition silicone
4) Polyether
The condensation silicone impression materials are supplied as a base paste and a low-viscosity liquid catalyst (or a paste catalyst).
Putty is a high-viscosity material that has been developed in order to overcome the large polymerization shrinkage of the condensation silicone impression materials.
All the other impression materials are generally supplied as catalyst paste & base paste.
What is the recommended approach to treating an acute dental infection in an
elderly patient?
1) Antibiotic therapy
2) Drainage of the abscess
3) Extraction of the infected tooth
4) Immediate root canal therapy
Initially, the primary goal is to drain the infection and alleviate pain before considering further treatment options like antibiotics or tooth preservation procedures
N-acetyl muramic is intermediate in the biosynthesis the cell wall
Which type of cells is seen in the late stage of chronic periodontitis?
1) Basophils
2) Eosinophils
3) Lymphocytes
4) Neutrophils
5) Macrophages
In the late stages of chronic periodontitis, macrophages are more prevalent, reflecting ongoing inflammation and tissue destruction.
What is the normal pH range for venous blood?
1) 7.35-7.45
2) 7.25-7.35
3) 7.45-7.55
4) 7.40-7.50
Venous blood has a pH range of 7.35 to 7.45, which is essential for maintaining various biochemical processes in the body.
A mandibular primate space is usually found in the primary dentition between 1. first and second molars 2. central and lateral incisors 3. lateral incisor and canine 4. canine and first molar
Dental Anatomy Answer: 4A mandibular primate space is usually found in the primary dentition between canine and first molar
Which of the following is NOT a common cause of secondary hypertension? 1) Pheochromocytoma 2) Smoking 3) Renal disease 4) Cushing’s syndrome
Pathology and Medicine Answer: 2Smoking is a risk factor for primary hypertension, while secondary hypertension is due to specific conditions like pheochromocytoma, renal disease, and Cushing’s syndrome.
The junction between primary and secondary dentine is:
1) A reversal line
2) Sharp curvature
3) A resting line
4) A reduction in the number of tubules
ADC Test Answer: 2
The relationship between primary and secondary dentine is characterized by a sharp transition in the curvature of dentinal tubules as changes in odontoblast activity occur post-eruption.
Cardio stable anaesthetic:
1) Etomidate
2) Propadanil
3) Ketamine
4) Thiopental
Etomidate is known for its cardio stability, making it a preferred choice in patients with cardiovascular issues.
The effects of hypoglycemia is marked by
1) Warfarin
2) Beta blockers
3) Calcium channel blockers
4) Amino glycosides
Beta blockers
Hypoglycemia can occur with beta-blockade because b2- adrenoceptors normally stimulate hepatic glycogen breakdown (glycogenolysis) and pancreatic release of glucagon, which work together to increase plasma glucose.
A 5 yr old pt is sheduled FOR tonsilectomy. On the day of Surgery he has running nose , temp= 37.5 degrees and dry cough. which of the following will b the most apt decision 4 Surgery
1. Surgery shud b cancelled
2. can proceed if chest is clesr n no h/o asthma
3. shud get chest x-ray done b4 proceeding 4 Surgery
4. cancel Surgery for 3 weeks n pt to b on antibiotics
general anesthesia,specifically nitrous oxide is contraindicated if the child is running a common cold and having slight fever on the day of surgery
What is the radiograph of choice for new edentulous patients?
1) Periapical
2) Bitewing
3) Panoramic
4) Cone beam CT
Periapical radiographs are the best choice as they allow for detailed visualization of specific problem areas in newly edentulous patients.
A wound to the posterior left axillary line, between the ninth and tenth rib, and extending approximately 5 cm deep, will most likely damage which organ?
1) Ascending colon
2) Duodenum
3) Left kidney
4) Spleen
The spleen follows the long axes of ribs 9 to 11 and lies mostly posterior to the stomach, above the colon, and partly anterior to the kidney.
Most of the duodenum (choice 2) is positioned too far to the right to be affected by this injury.
Even the third part of the duodenum, which runs from right to left, would still be out of harm's way. In addition, the duodenum lies at about levels L1 to L3, placing it too low to be injured in this case.
The superior pole of the left kidney (choice 3) is bordered by the lower part of the spleen. However, it is crossed by rib 12 and usually does not extend above rib 11. It would probably be too low and medial to be injured in this case because this penetration is at the posterior axillary line.
Which of the following is NOT a type of cognitive-behavioral therapy used in managing dental anxiety?
1) Systematic desensitization
2) Guided imagery
3) Dental hypnosis
4) Exposure therapy
While hypnosis can be used in dentistry for pain management and relaxation, it is not typically classified as a form of cognitive-behavioral therapy. Exposure therapy, systematic desensitization, and guided imagery are examples of cognitive-behavioral techniques.
After completion of endodontic chemomechanical debridement
1) all tissue should be removed from the root canal system.
2) permanent inflammation may be cause4)
3) the root canal should be sterile.
4) some areas of the root canal system may be incompletely cleaned
Despite thorough chemomechanical debridement, it is common for certain areas within the complex anatomy of the root canal system to remain inadequately cleaned. This can occur due to the presence of lateral canals, isthmuses, or other anatomical variations that are difficult to access, leading to potential areas of infection or inflammation.
Impressions taken with which of the following materials are subject to distortion as a result of water sorption? 1. silicone rubber 2. polysulflde polymers 3. zinc oxide-eugenol-paste 4. polyether
Dental Material Answer: 4polyether materials are subject to distortion as a result of water sorption
Which organ has fenestrated capillaries?
1) Liver
2) Kidney
3) Pancreas
4) Lung
Fenestrated capillaries are characteristic of the pancreas, particularly in the islets of Langerhans, which facilitate the exchange of hormones into the bloodstream.
What is the maximum retention period for adult dental records as recommended by the GDC?
- 5 years
- 8 years
- 10 years
- There is no maximum retention period
The GDC recommends retaining adult dental records for at least 10 years after the last treatment.
Lignocaine can be used in all, except:
1) Ventricular fibrillation
2) Spinal anaesthesia
3) Epidural
4) Convulsions
Lignocaine rather in toxic doses can produce convulsion.
Which of the following is NOT a requirement for informed consent in dental treatment?
- The patient must be competent to make decisions
- The treatment options must be fully explained to the patient
- The patient must be informed of the risks and benefits of each option
- The patient must sign the consent form in triplicate
Informed consent requires that the patient is competent to make decisions, the treatment options are fully explained, the risks and benefits are communicated, and the patient understands the nature and purpose of the proposed treatment.
Which type of neurons supply the masticatory muscles?
1) Slow conducting
2) Fast conducting
3) Both
4) None
The masticatory muscles are supplied by fast-conducting motor neurons, allowing swift and effective muscle contractions for functions like chewing.
A child presents with multiple bruises in various stages of healing. What should the healthcare provider do first?
1) Ask the child how they got the bruises
2) Report the findings to child protective services
3) Document the injuries and schedule a follow-up
4) Contact the parents for an explanation
When a child presents with signs of potential abuse, the healthcare provider should report the findings to child protective services immediately.
Which of the following drugs acts by enzyme inhibition?
1) salbutamol
2) acetazolamide
3) tolbutamide
4) chlorpromazine
Acetazolamide is a carbonic anhydrase inhibitor that reduces aqueous humour production and is therefore indicated in glaucoma to reduce the intraocular pressure.
Salbutamol is a selective, short-acting beta2-agonist used as a bronchodilator in asthma.
Chlorpromazine is an aliphatic neuroleptic antipsychotic drug used in schizophrenia.
What is the largest possible cavosurface angle?
1) 90 degrees
2) 100 degrees
3) 110 degrees
4) 120 degrees
The largest possible cavosurface angle in dental restorations is typically around 110 degrees, which helps in achieving a proper seal and retention.
Which immunoglobulin is responsible for providing passive immunity from the mother to the fetus?
1) IgA
2) IgM
3) IgD
4) IgG
IgG is the immunoglobulin that crosses the placenta and provides passive immunity to the fetus, offering protection against infections during the early stages of life.
To minimize fractures of amalgam restorations in primary teeth, cavity
preparations should have
1) concave pulpal floors.
2) rounded axiopulpal line angles.
3) bevelled cavosurface margins.
4) lateral walls parallel to the external surface of the tooth.
Rounded line angles reduce stress concentrations in the amalgam, enhancing its
strength and resistance to fractures.
What is the typical pain description for a dry socket?
1) Continuous, severe, and throbbing
2) Sharp and intermittent
3) Mild and constant
4) Only present with biting or chewing
Dry socket pain is characteristically severe, continuous, and throbbing, differing from the milder pain of a normal extraction site.
What’s the percentage of tooth erosion in 6-year-olds and 15-year-olds in the UK?
1) 5-10% and 15-20%
2) 5-52% and 15-27%
3) 10-30% and 20-40%
4) 15-25% and 25-35%
Studies indicate that tooth erosion affects a significant percentage of children, with varying rates between different age groups.
In which condition is the prothrombin time typically prolonged?
1) Hemophilia
2) Vitamin K deficiency
3) Use of salicylates or anticoagulants
4) Platelet disorders
Both salicylates and anticoagulants can interfere with blood clotting mechanisms and prolong prothrombin time.
What is the effective way to prevent the spread of infection during dental procedures?
1) Use a single-use needle
2) Sterilize instruments thoroughly
3) Disinfect surfaces before and after procedures
4) All of the above
Multiple strategies are essential for infection control in dental settings, including using sterile instruments, disinfecting surfaces, and employing single-use items to prevent cross-contamination.
Ameloblastoma is the most aggressive:
1) Odontogenic tumor
2) Benign tumor
3) Malignant tumor
4) Fibrous tumor
Ameloblastoma is a benign but locally aggressive tumor of odontogenic origin, meaning it arises from the tissues that form teeth.
What is the most effective way to manage a patient with dental anxiety?
1) Sedation
2) General anesthesia
3) Cognitive behavioral therapy
4) All of the above
Managing dental anxiety can involve sedation, general anesthesia, and psychological approaches like cognitive behavioral therapy, depending on the severity of the anxiety.
Diffusion hypoxia is caused by:
1) Ether
2) Halothane
3) N2O
4) Trielene
Nitrous oxide (N2O) can cause diffusion hypoxia when its delivery is stopped, as it displaces oxygen in the alveoli.
Clinically significant drug interaction occurs between pyridoxine and all the following drugs except?
1) Isoniazid
2) Cyclosporine
3) Levodopa
4) Hydralazine
Pyridoxine – drug interactions : INH – induces a pyridoxine deficiency state
Levodopa – pyridoxine promotes peripheral conversion of levodopa to dopamine – thus it decreases therapeutic action of levodopa in the brain
Oral contraceptive pills – decrease pyridoxine levels in some females
Hydralazine – impairment of pyridoxine utilisation
4-deoxy pyridoxine – pyridoxine antagonist
What is the primary purpose of informed consent in healthcare?
1) To protect
the healthcare provider from legal liability
2) To ensure the patient understands the treatment options
3) To expedite the treatment process
4) To document the patient's medical history
Informed consent is primarily about ensuring that patients understand the nature of the treatment, its risks and benefits, and alternatives, allowing them to make an informed decision.
Which of the following is an example of a legal requirement for dental records?
- Using a specific color of ink to write in the chart
- Storing patient records for at least 7 years after the patient's last appointment
- Having a signed treatment consent form for every procedure
- Using only digital records, no paper charts allowed
The legal requirements for dental records may vary by state or country, but a common requirement is the retention of records for a certain period, typically 7 to 10 years or until the patient reaches the age of majority plus a certain number of years.
Ketamine is contraindicated in:
1) Hypertension
2) Raised intracranial tension
3) Raised intraocular tension
4) All of the above
Ketamine raises both systolic and diastolic blood pressures and is thus contraindicated in hypertension. It increases cerebral blood flow and intracranial pressure and is thus contraindicated in raised intracranial tension. Ketamine raises intraocular tension and is thus contraindicated in glaucoma.
Heparin
1) is a glycosaminoglycan
2) potentiates thrombin
3) has a half life of 3-4 hours
4) is normally given IM
GlycosaminoglycAnswer (GAGs) are heteropolysaccharides.
What should a dentist do if a patient presents with a dental emergency that appears to be the result of abuse or neglect?
1) Treat the emergency and report the incident to the authorities
2) Refuse treatment until the patient provides a satisfactory explanation for the injury
3) Treat the emergency without reporting the incident
4) Report the incident to the authorities and delay treatment until they arrive
In the case of a dental emergency, the dentist should provide immediate care and report the suspicion of abuse or neglect to the authorities.
Nonselective beta blocker possessing quinidine-like membrane stabilizing effects.
1) pindolol
2) acebutolol
3) sotalol
4) esmolol
Beta-blockers, such as propranolol, labetalol, and pindolol, can have membrane stabilizing effects (eg, quinidinelike effects, Vaughan-Williams class I antiarrhythmic effects).
Which of the following is NOT a type of informed consent?
1) Implied consent
2) Verbal consent
3) Written consent
4) Digital consent
The recognized types of informed consent are implied, verbal, and written. Digital consent is not formally recognized as a distinct type.<
At what age is the BCG vaccine recommended?
1) At birth
2) At 6 months
3) Up to 1 year
4) At 2 years
The BCG vaccination is recommended for all babies up to one year old, especially those born in areas with high rates of tuberculosis (TB) or with a family history of TB.
Hyperthermia can be seen with:
1) Lithium toxicity
2) Opium withdrawal
3) Malignant neuroleptic syndrome
4) Eclampsia
Malignant neuroleptic syndrome (caused by phenothiazine) is one of the usual causes of hyperthermia in anaesthesia.
Which fibers are most resistant to periodontitis?
1) Transeptal fibers
2) Intergingival fibers
3) Circular fibers
4) Dentogingival fibers
Transeptal fibers are more resistant to periodontitis due to their position and function in maintaining the integrity of the periodontal attachment between adjacent teeth.
What is a common oral manifestation of bulimia nervosa?
1) Xerostomia
2) Erosion of dental enamel
3) Oral thrush
4) Gingival hyperplasia
The exposure of teeth to stomach acids due to vomiting can lead to significant enamel erosion.
Why is it important to conduct a medication review for geriatric patients
before dental treatment?
1) To identify affordable treatment options
2) To assess for drug interactions
3) To increase the number of visits
4) To speed up the treatment process
A medication review is essential to identify potential drug
interactions that could affect treatment outcomes and management strategies.
What is the primary purpose of using a rubber dam in dentistry?
1) To improve visibility
2) To isolate the tooth
3) To prevent contamination
4) All of the above
A rubber dam is used to improve visibility, isolate the tooth from saliva, and prevent contamination during procedures.
What type of discharge is typically associated with vesiculobullous lesions?
1) Purulent
2) Bloody
3) Serous
4) Foul-smelling
Vesiculobullous lesions often present with a serous discharge, which is a clear, yellowish fluid resulting from the inflammatory response.
Which nerve is affected if the patient is unable to gaze laterally to the left?
1) Right abducens
2) Left abducens
3) Oculomotor
4) Trochlear
The left abducens nerve controls lateral eye movement; its dysfunction results in the inability to gaze laterally to the left.
What is the most common complication associated with local anesthesia in the
elderly?
1) Dizziness and lightheadedness
2) Inadvertent intravascular injection
3) Increased risk of infection
4) Prolonged numbness
Due to altered pharmacokinetics, elderly patients may experience prolonged anesthesia and delayed recovery of normal sensation.
Ethohepatazine is a chemical derivative of meperidine
What is the general guideline for discussing risks with patients?
1) Only discuss risks that are common and severe
2) Discuss all possible risks, no matter how rare
3) Only discuss risks that patients inquire about
4) It is not necessary to discuss risks if the treatment is routine
Healthcare providers should inform patients about common and severe
risks that have a reasonable chance of occurring, allowing them to make an
informed decision.
The secretory product of odontoblasts is:
1) Topocollagen.
2) Calcium salts.
3) Mantle dentin.
4) Hydroxyapatite
Dentinogenesis is the formation of dentin by odontoblasts of mesenchymal origin
located at the periphery of the dental pulp
Dentinogenesis is initiated by the inductive influence of the enamel organ
involving molecular signaling pathways, such as Wnt, Runx-2, and TGF-?. In the
molar tooth, dentinogenesis starts at the late bell stage, and occurs in the
crown as well as root regions.
Predentin, the first organic matrix secreted by odontoblasts, is composed by
proteoglycans, glycoproteins, and collagens.
After the age of 6 years, where does the greatest increase in the size of the mandible occur?
1) At the symphysis
2) Between canines
3) Distal to the first molar
4) Ramus
After the age of 6, especially during growth spurts, the mandible increases significantly in height and width, particularly in the ramus region, including the area distal to the first molar.
Which type of headgear is most appropriate for the management of a 10 year old patient with an increased lower third of the face, incompetent lips, an Angle Class II malocclusion and vertical maxillary excess?
1) High-pull.
2) Cervical.
3) Combination.
4) Protraction.
The high-pull headgear is used in orthodontics to exert a force on the upper
jaw, pulling it backward and upward. This action aims to correct the vertical
excess and improve the skeletal relationship between the maxilla and the
mandible, thus reducing the overjet and improving the overall facial profile. The high-pull mechanism targets the upper molars and can also help to control
the growth of the upper jaw, guiding it into a more favorable position. It is
often used in growing patients to take advantage of their developing
craniofacial structures.
2) Cervical headgear, on the other hand, is typically used to correct a Class II
malocclusion by providing a downward and backward force on the upper molars. However, it does not have the vertical component needed to address the excessive
vertical growth of the maxilla in this case.
3) Combination headgears can also be used for Class II corrections but may not
be as efficient as a high-pull in addressing the vertical excess specifically.
4) Protraction headgears are used to move the upper jaw forward to correct Class
III malocclusions, where the lower jaw is more prominent. Since the patient has
a Class II malocclusion, this would not be the correct type of headgear.
What is the role of glycoproteins in the saliva's natural defense against
dental caries?
1) They act as a physical barrier to protect the tooth surface from bacteria.
2) They neutralize bacterial acids.
3) They inhibit the formation of plaque.
4) They promote the growth of beneficial oral bacteria.
Glycoproteins in saliva help to aggregate bacteria, making them easier to eliminate during swallowing and reducing their ability to adhere to tooth surfaces.
Highest incidence of intravascular injection is with:
1) Supraclavicular
2) Interscalene
3) Intercostal
4) Axillary
Local Anesthesia Answer: 3
Intercostal Highest blood levels of local anaesthetic per volume injected is seen after intercostal nerve block.
Unilateral numbness of the chin is associated with
1) malignancy.
2) Bell's palsy.
3) apical abscess.
4) trigeminal neuralgia
Numb chin syndrome occurs due to pressure on the mental nerve, often caused by
metastatic malignancies such as breast or lung cancer.
It serves as a potential warning sign of cancer progression.
When calcospherites fail to fuse during calcification of dentin matrix then
1 Interglobular dentin is formed
2 Dead tracts are found in formed dentin
3 Irregular dentin results
4 None
Interglobular Dentin:
Sometimes, mineralization of dentin begins in small globular areas that fail to coalesce into a homogenous mass.
These zones are known as globular dentin or interglobular spaces. Thus, demonstrating defect of mineralization and not of matrix formation, the dentinal tubules pass uninterruptedly through interglobular dentin.
What is the primary risk factor for the development of musculoskeletal disorders among dental professionals?
1) Prolonged periods of sitting
2) Repetitive motions
3) Working with vibrating instruments
4) Exposure to radiation
Repetitive motions, such as those involved in holding and using small hand instruments for long periods, are the primary risk factor for the development of musculoskeletal disorders among dental professionals.
Which one of the following is true about oral hairy leukoplakia?
1) Associated with HIV virus infection and is commonly seen on the dorsal of the tongue
2) Associated with HIV virus infection and is commonly seen on the lateral side of the tongue
3) Usually caused by Candida species
4) Always associated with trauma to the lateral side of the tongue
ADC Test Answer: 2
Oral hairy leukoplakia is typically associated with Epstein-Barr virus and is most commonly found on the lateral borders of the tongue in immunocompromised individuals.
A successful inferior alveolar nerve block will produce anesthesia of the?
1) Lower lip and mandibular teeth.
2) Lower lip.
3) Lower lip, mandibular teeth and labial gingivae of the anterior mandibular teeth
4) Lower lip, mandibular teeth and labial gingivae of the anterior and buccal gingivae of the posterior mandibular teeth.
A successful inferior alveolar nerve block will produce anesthesia of the lower lip, mandibular teeth, and labial gingivae of the anterior mandibular teeth.
Which of the following is a characteristic of affected dentin?
1) Bacteria-loaded and mushy
2) Requires complete removal
3) Completely cavitated
4) Dry and leathery
Affected dentin is dry and leathery, not invaded by bacteria, and does not need to be removed during restoration.
What is the importance of maintaining confidentiality in dental records?
- It is not important as long as the records are accurate
- It encourages patient honesty and trust in the dentist-patient relationship
- It is only important for insurance purposes
- It is only relevant for HIPAA compliance
Confidentiality is crucial for fostering a relationship of trust and respect between the patient and the dental team.
What type of reaction does an amalgam restoration cause?
1) Type I hypersensitivity
2) Type II hypersensitivity
3) Type IV hypersensitivity
4) Anaphylactic reaction
Amalgam restorations can lead to type IV hypersensitivity reactions, which are delayed and mediated by T lymphocytes rather than antibodies.
On replantation of an avulsed tooth, which type of resorption is most commonly observed
1) Surface resorption / External resorption
2) Internal resorption
3) Inflammatory resorption
4) Replacement resorption
ADC Test Answer: 4
After replantation of an avulsed tooth, the periodontal ligament cells are often damaged. When these cells fail to regenerate properly, the root surface fuses directly with alveolar bone. This leads to replacement resorption (ankylosis), where the tooth structure is gradually substituted by bone.
Which of the accompanying is NOT an intermediate acting muscle relaxant?
1) Cisatracurium
2) Rocuronium
3) Mivacurium
4) Vecuronium
Mivacurium is a short-acting muscle relaxant, whereas Cisatracurium, Rocuronium, and Vecuronium are intermediate-acting.
Periapical Abscess is a collection of pus at the root of a tooth. It's usually
caused by which of the following?
1) Inflammation
2) Tooth decay
3) Infection
4) Dead tissues
Periapical abscess is a collection of pus that occurs at the root of a tooth. It is usually caused by infection. Infection can occur when bacteria enter the tooth through a cavity or a crack, leading to inflammation and the formation of pus. Tooth decay and dead tissues can contribute to the development of an infection, but the primary cause is the presence of bacteria that trigger the inflammatory response and the subsequent formation of pus.
During setting, a gypsum-bonded investment material will undergo an additional
expansion if it occurs
1) under water.
2) under vacuum.
3) in a cold environment.
4) in a dry environment.
Hygroscopic expansion occurs when water surrounds the setting gypsum, enhancing
its dimensional changes.
This type of expansion is often utilized intentionally in casting to compensate
for metal shrinkage during cooling.
A patient presents with a history of using an old diamond bur. What consequence might arise from this?
A. Faster cutting
B. Excessive heat generation
C. Reduced pain during procedures
D. Improved tooth surface finish
Using an old diamond bur can lead to inadequate cutting efficiency, forcing the dentist to apply excessive pressure which generates excessive heat—this can damage the dental pulp.
Following trauma to the tooth, if there is no response to pulp tests the next day you should:
1) Review again later
2) Start endodontic treatment
3) Extraction of tooth
4) Perform additional sensibility tests
ADC Test Answer: 1
Initial negative responses may not indicate pulp necrosis, as the pulp could still be viable, so follow-up is essential to confirm the diagnosis.
Guiding planes on abutment teeth for a removable partial denture should be
prepared before the occlusal rests are prepared in order to
1) avoid post-insertion adjustment.
2) facilitate surveying of the cast.
3) improve the retention of the direct retainer assembly.
4) finalize the location of the occlusal rest.
Guiding planes are critical for establishing the path of insertion for a
removable partial denture (RPD).
If guiding planes are not prepared first, occlusal rests may be positioned
inappropriately, leading to misalignment.
Preparing guiding planes first ensures that all components of the RPD fit
properly and function as intended
Which of the following is NOT a principle of biomedical ethics?
1) Autonomy
2) Beneficence
3) Nonmaleficence
4) Probity
The four main principles of biomedical ethics are autonomy,
beneficence, nonmaleficence, and justice. Probity is a term that relates to
integrity and honesty, which are important in professional ethics, but it is not
one of the four fundamental principles.
In which direction does the palatal root of the upper first molar usually curve towards?
1) Facial / buccal
2) Lingual
3) Mesial
4) Distal
ADC Test Answer: 1
The palatal root of the maxillary first molar typically curves towards the buccal, creating challenges in accessing and treating its canals.
For a 26-year-old with a missing lateral incisor, what is the recommended treatment?
1) Dental implant
2) Resin bonded bridge
3) Removable partial denture
4) Orthodontic treatment
In adults, a dental implant is a more permanent and stable solution for replacing a missing tooth.
Which of the sugar is least cariogenic:
1) Sucrose
2)
Glucosebr
3)
Xylitol
4)
Lactose
Xylitol is the least cariogenic sugar because it cannot be metabolized by the bacteria in the mouth, unlike glucose, sucrose, and lactose. This means that xylitol does not contribute to tooth decay as much as the other sugars do.
Which is NOT TRUE in relation to the prescription of 5mg or 10mg of diazepam for sedation?
1) Patient commonly complains of postoperative headache
2) An acceptable level of anxiolytic action is obtained when the drug is given one hour preoperatively
3) There is a profound amnesic action and no side effects
4) Active metabolites can give a level of sedation up to 8 hours post-operatively
ADC Test Answer: 3
Although diazepam can cause amnesia, it is incorrect to say there are no side effects; benzodiazepines are known for various side effects including confusion and sedation.
In classifying molar relation in patient with premature loss of primary molar, additional relation to be noted is
1) Incisor relation
2) Canine relation
3) Midline relation
4) Premolar relation
Orthodontics Answer: 2
SOLUTION
Pethidine should not be given with:
1) Reserpine
2) Propranolol
3) Atenolol
4) MAO inhibitors
Pethidine can cause severe excitatory response and arrhythmia in patients on MAO therapy due to high levels of catecholamines.
What causes amalgam expansion?
1) Excess mercury
2) Sufficient ventilation
3) Moisture contamination
4) Inadequate mixing
Moisture during the mixing and placement of amalgam can result in expansion, particularly with zinc-containing alloys.
What percentage of hypertension cases is accounted for by primary or essential hypertension? 1) 50% 2) 60% 3) 75% 4) 90%
Pathology and Medicine Answer: 4Primary or essential hypertension makes up about 90% of all hypertension cases, typically with no identifiable cause and is associated with factors like genetics, smoking, and obesity.
What is the critical pH for fluorapatite?
1) 5.5
2) 6.2
3) 4.5
4) 7.0
Fluorapatite has a critical pH of 4.5, below which demineralization occurs. Fluorapatite has a higher resistance to acid damage compared to hydroxyapatite, with a critical pH of 4.5 for demineralization.
What must a dentist disclose to a patient regarding the risks of a proposed
treatment?
1) Only the most common risks
2) Only the most severe risks
3) All significant risks, including common and less common but serious risks
4) Only the risks that the dentist personally considers significant
A dentist must disclose all significant risks associated with a treatment, not just the most common or severe ones. This allows the patient to have a complete understanding of the potential outcomes and make an informed decision about their care.
Which of the following dental materials is most suitable for geriatric patients
with limited dexterity?
1) Composite resin
2) Amalgam
3) Glass ionomer cement
4) Temporary restoratives
Glass ionomer cement bonds to tooth structure and releases
fluoride, making it a convenient option that requires less maintenance and can
be beneficial for those with limited dexterity.
What is the primary purpose of documenting suspected abuse or neglect in a dental practice?
1) To confront the abuser
2) To provide evidence for legal proceedings
3) To avoid liability
4) To inform other dental professionals
Documentation serves as a crucial record of observations and actions taken, which can be important in legal contexts.
What is the purpose of placing rests on the proximal surfaces of teeth?
1) To enhance aesthetics
2) To prevent food impaction
3) To facilitate easier cleaning
4) To allow for more room in the denture base
Rests on the proximal surfaces prevent food impaction between the minor connector and the tooth.
The reaction used for estimating free amino, groups in proteins is: 1. Ninhydrin test 2. Deamination with HNO2 3. Biuret test 4. Formol titration
Biochemistry Answer: 2The reaction used for estimating free amino, groups in proteins is Deamination with HNO2
Glycine is a Glycogenic amino acid, only
Which of the following is NOT a component of personal protective equipment
(PPE) for dental healthcare workers?
1) Masks
2) Gloves
3) Gowns
4) Eye protection
PPE includes masks,
gloves, and gowns, which are essential to protect against the transmission of
infections. However, eye protection such as goggles or face shields is also a
critical component to prevent the spread of pathogens through splashes or
aerosols.
The bull's eye type of appearance in IOPA (Intraoral Periapical radiograph) is
seen in:
1) Lingually placed mandibular third molar
2) Buccally placed mandibular third molar
3) Inverted mandibular third molar
4) Distoangular impaction
The bull's eye appearance on an IOPA radiograph is typically
associated with a lingually positioned mandibular third molar. This appearance
is due to the radiographic projection of the tooth and surrounding structures,
which can create a characteristic circular pattern that resembles a bull's eye.
Selective medium for streptococcus mutans?
1 mac conkey medium
2 mitis salivarius bacitracin agar
3 neutrient agar
4 tellurite medium
Colonies of E. coli serotype O157:H7 appear on Mac Conkey Sorbitol Agar as colourless colonies non-sorbitol fermenter. Others E. coli, sorbitol fermenters, give red colonies and gram-negative non-sorbitol fermenters appear translucent.
Defluoridation of water can be done by:
1)
Lime and alum
2)
Bleaching powders
3)
Potassium permanganate
4)
Sodium chloride
One of the most effective methods for defluoridation is the Nalgonda
technique, which involves the use of lime, alum, and bleaching powder.
What is the standard of care in dental records?
- The highest level of care possible
- The average care provided by dentists in the community
- The care mandated by the patient's insurance policy
- The care required by dental board regulations
The standard of care is based on what a reasonably prudent dentist would do under the same or similar circumstances, which is often reflected in the community average.
Typical features of Down’s syndrome (Mongolism) do not include:
1) Multiple immunodeficiencies
2) Severe caries but minimal periodontal disease
3) Susceptibility to infections
4) Multiple missing teeth and malocclusion
ADC Test Answer: 2
Individuals with Down syndrome often exhibit a higher incidence of periodontal disease rather than minimal periodontal issues.
Which drug is indicated as part of the management for a codeine overdose?
1) Atropine.
2) Diphenhydramine.
3) Epinephrine.
4) Naloxone.
Naloxone is an opioid antagonist and reverses the effects of codeine toxicity, including respiratory depression.
The fibres of Purkinje?
1. Are remains of embryonic cardiac muscle fibres
2. Are placed over the pericardium
3. Arise from the sinu-arterial noded a and b both
4. a and b both
These form specialized fibres of the heart and are supposed to be terminal filaments of bundle of His.
A 9 year old presents for treatment immediately following a facial injury
resulting in a fracture of a maxillary central incisor that involves the enamel
only. The tooth tests negative to an electric pulp tester. This finding
indicates that the tooth
1) is nonvital and should be extracted
2) is nonvital and endodontic therapy is indicated
3) has a root fracture and should be extracted
4) should be observed and tested again at a later date.
A negative response to pulp testing immediately after trauma may not indicate necrosis but temporary pulp shock. Observation allows the pulp to recover.
If the tooth has not erupted to the line of occlusion it is called
1) Supraversion
2) Torsiversion
3) Rotated
4) Infraversion
Orthodontics Answer: 4
Terms used to describe the position of teeth. Mesioversion - A tooth in the arch located more mesial than normal
Distoversion - A tooth in the arch located more distal than normal
Labioversion - An incisor or canine outside of arch towards the lips
Buccoversion - A posterior tooth outside the arch toward the cheek
Linguoversion - A tooth inside the arch form toward the tongue
Infraversion - A tooth that has not erupted to the occlusal plane
Supraversion - A tooth the has over-erupted
Torsiversion - A tooth rotated on its axis
Transversion (Transposition) - Teeth that are in the wrong sequential order.
What is the purpose of a personalized consent form in a dental practice?
1) To provide legal protection to the dentist
2) To ensure the patient is fully informed about the procedure
3) To standardize the consent process
4) To limit the patient's options for treatment
A personalized consent form helps tailor the information provided
to the patient's specific treatment, ensuring they are aware of the risks,
benefits, and alternatives before making a decision.
Which treatment is most effective for a patient exhibiting type I hypersensitivity to a kiwi?
1) Antihistamines
2) Corticosteroids
3) Immediate epinephrine
4) Intravenous fluids
For severe anaphylactic reactions related to type I hypersensitivity, such as from kiwi, immediate epinephrine administration is crucial for reversal of symptoms.
Which of the following is NOT a common occupational hazard for dentists and dental staff?
1) Exposure to ionizing radiation
2) Risk of infection from bloodborne pathogens
3) Development of musculoskeletal disorders
4) High risk of developing allergies to dental materials
While dentists and dental staff are indeed at risk of developing allergies to certain dental materials, especially those with latex allergies due to repeated exposure to gloves and other latex products, it is not a common occupational hazard compared to exposure to ionizing radiation from dental x-rays, risk of infection from bloodborne pathogens due to the nature of dental procedures, and the high prevalence of musculoskeletal disorders due to the ergonomic challenges of the work.
In the TNM classification, what does M1 indicate?
1) No distant metastases
2) Distant metastasis present
3) Localized tumor
4) Tumor size greater than 4 cm
M1 indicates that there is evidence of distant metastasis, which is critical for determining the stage of cancer.
Patients with cerebral palsy may exhibit which of the following oral manifestations?
1) Limited mouth opening and difficulty with oral hygiene
2) Excessive salivation and speech impairment
3) Difficulty swallowing and risk of aspiration
4) All of the above
Cerebral palsy can affect muscle control and coordination, leading to challenges in maintaining good oral hygiene, difficulty with speech and swallowing, and increased risk of aspiration.
What is the recommended method for disposal of used needles and other sharps
in dental offices?
1) In regular trash
2) In a designated sharps container
3) In a red biohazard bag
4) In a puncture-resistant container
Sharps containers are designed to safely hold and dispose of used
needles and other sharp objects to prevent injury and the spread of infections. They should be puncture-resistant, leak-proof, and clearly labeled as biohazard
waste.
Increased cerebral O2 consumption is caused by:
1) Propofol
2) Ketamine
3) Atracurium
4) Fentanyl
Ketamine is known to increase cerebral oxygen consumption.
Which of the fibers attached to cementum are most likely to contribute to relapse of tooth rotation:
1) Gingival group of fibers
2) Apical fibers
3) Horizontal fibers
4) Oblique fibers
SOLUTION Gingival group of fibers
Principal fibers of the periodontal ligament rearranges themselves quite rapidly to the position in about 4 weeks.The supra-alveolar gingival fiber take as much as 40 weeks to rearrange around the new position and thus predispose to relapse.
Prior to investing the casting ring is lined with asbestos to . 1. prevent sliding of the investment mold 2. prevent confinement of mold expansion 3. permit easy retrieval of the casting 4. prevent cracking of the mold
Dental Material Answer: 2the casting ring is lined with asbestos to prevent confinement of mold expansion
Ketamine is contraindicated in
1) Hypertension
2) Raised intracranial tension
3) Raised intraocular tension
4) All of the above
a. Ketamine raises both systolic and diastolic blood pressures and is thus
contraindicated in hypertension.
b. Ketamine increases cerebral blood flow and intracranial pressure and is thus
contraindicated in raised intracranial tension
c. Ketamine raises intraocular tension and is thus contraindicated in glaucoma.
To give inferior alveolar nerve block, the nerve is approached lateral to pterygomandibular raphe between the buccinator and:
1) Temporalis
2) Superior constrictor
3) Middle constrictor
4) Medial pterygoid
Local Anesthesia Answer: 2
Superior constrictor Mandibular nerve (and hence inferior alveolar, All auriculotemporal, lingual and buccal) is blocked posterior o lateral pterygoid plate.
Which of the following is NOT a consideration for endodontic treatment in
the elderly?
1) Diminished pulp vitality
2) Reduced healing capacity
3) Systemic health conditions
4) All of the above are considerations.
While systemic health conditions are a consideration, endodontic
treatment can still be successful in the elderly with careful management and
patient selection.
What is the purpose of a comprehensive medical history in dental care?
- To bill the patient's insurance
- To tailor treatment plans based on the patient's health
- To determine the patient's credit score
- To market dental services to the patient
Knowing the patient's medical history helps the dentist make informed decisions about the patient's treatment and overall care.
What is the main function of glucosyltransferase (GTF) produced by S. mutans?
1) It breaks down bacterial cell walls.
2) It converts sucrose into polysaccharides.
3) It neutralizes acids in saliva.
4) It promotes remineralization.
GTF converts sucrose into extracellular polysaccharides, aiding bacterial adherence to tooth surfaces.
What is the most common reason for the failure of an approximal amalgam filling?
1) Marginal leakage
2) Secondary caries
3) Isthmus fracture
4) Overhang
Isthmus fractures are a common reason for the failure of approximal amalgam fillings, often due to stress and occlusal forces.