Dentist Abroad
What is malignant hypertension? 1) Hypertension with systolic <120 mmHg 2) Hypertension that presents only at night 3) Hypertension with systolic >200 mmHg and diastolic >130 mmHg 4) A type of primary hypertension
Pathology and Medicine Answer: 3Malignant or accelerated hypertension is defined by extremely high readings and often requires urgent treatment.
What is the purpose of the Code of Ethics established by dental associations?
1) To provide financial benefits to members
2) To guide dental professionals in ethical decision-making
3) To promote competition among dental practices
4) To regulate dental fees
Ethics and Jurisprudence Answer: 2The Code of Ethics serves as a framework for ethical conduct, helping dental professionals navigate complex ethical dilemmas and maintain high standards of practice.
What is a common consequence of prolonged exposure to loud noises in a dental office? 1) Increased risk of infection 2) Hearing loss 3) Skin irritation 4) Respiratory issues
Occupational Hazards Answer: 2Prolonged exposure to loud noises from dental equipment can lead to noise-induced hearing loss, making it important to use hearing protection when necessary.
What is the primary risk associated with the use of nitrous oxide in a dental practice? 1) Allergic reactions 2) Environmental pollution 3) Potential for abuse and addiction 4) Exposure to infectious agents
Occupational Hazards Answer: 3Nitrous oxide can be misused, leading to potential abuse and addiction, making proper ventilation and safety protocols essential.
Ultrashort acting blocker most commonly used in anaesthesia is:
1) Esmolol
2) Nadolol
3) Propranolol
4) Atenolol
Esmolol is metabolized by RBC esterase, making it very short-acting with a half-life of only 8-10 minutes.
What artery provides nourishment to the TMJ?
1) Superficial temporal artery
2) Maxillary artery
3) Facial artery
4) Inferior alveolar artery
The superficial temporal artery, a branch of the maxillary artery, provides blood supply to the temporomandibular joint (TMJ).
What is the suitable restoration approach for a Class III jaw relationship with limited coronal height?
1) Provide a gold onlay
2) Provide a full crown
3) Increase vertical dimension
4) Crown lengthening
An adhesively retained gold onlay is ideal for teeth with limited coronal height due to its ability to conserve tooth structure while providing durability.
Which of the following is a sign of neglect in a dental patient?
1) A patient with a full set of dentures
2) A child with untreated dental decay and poor nutrition
3) A patient who regularly attends dental appointments
4) A patient who is anxious about dental procedures
Untreated dental decay and poor nutrition can indicate neglect, especially in children who rely on caregivers for proper care.
What is the primary concern when administering local anesthesia to a patient with a bleeding disorder?
1) Increased pain sensitivity
2) Prolonged bleeding from the injection site
3) Inability to achieve adequate anesthesia
4) Higher risk of infection
Patients with bleeding disorders, such as hemophilia, may have difficulty controlling bleeding, even from minor procedures like local anesthetic injections.
The ideal treatment for a tooth (75) with caries touching the pulp horn at age 7 is:
1) Indirect pulp capping and steel crown
2) Pulpotomy and steel crown
3) Pulpectomy and steel crown
4) Extraction and space maintainer
ADC Test Answer: 2
At this age, a pulpotomy (removal of the coronal pulp) is appropriate as it preserves the remaining vital tissue while addressing caries.
Which type of rest is often used for additional support or indirect retention?
1) Primary rest
2) Secondary rest
3) Occlusal rest
4) Cingulum rest
Secondary or auxiliary rests provide additional support and help in maintaining retention in the RPD.
Ranitidine belongs to the class of medications?
1) Proton pump inhibitor
2) Selective H2 receptor antagonist
3) Antacid
4) Antibiotic
Ranitidine belongs to the class of medications known as H2-receptor antagonists. These drugs work by blocking the action of histamine on the parietal cells in the stomach, which reduces the production of gastric acid. They are commonly used to treat conditions such as gastroesophageal reflux disease (GERD), peptic ulcers, and other conditions where a reduction in stomach acid is beneficial.
Lignocaine with adrenaline is contra-indicated for ring block of:
1) Penis
2) Toes
3) Pinna
4) All of the above
Xylocaine with adrenaline is contraindicated in ring block of finger, toes, penis, pinna (because these structures have end arteries) and Beta block (intravenous regional anaesthesia).
What suture material is used on lips?
1) Prolene
2) Nylon
3) Vicryl
4) Both 1 and 2
Prolene and nylon are both commonly used suture materials for lip closures due to their strength and minimal tissue reaction.
A reversible white spot lesion indicates early demineralization that can be reversed with proper care and management
Which factor is likely implicated in the excessive fibrinolysis observed in localized alveolar osteitis?
1) Platelets
2) Fibrinogen
3) Plasmin
4) Thrombin
Excessive local fibrinolytic activity, primarily due to elevated levels of plasmin, is implicated in the development of localized alveolar osteitis after tooth extractions.
What is the best method to detect a crack in a tooth?
1) Visual inspection.
2) Tactile sensation with an explorer.
3) Radiograph.
4) Transillumination.
ADC Test Answer: 3
While visual inspection and tactile sensation can sometimes indicate a crack, a radiograph provides the best method for detecting cracks as it allows the dentist to see the internal structure of the tooth and any associated bone changes.
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.
Internal resorption is:
1) Radiolucency over unaltered canal
2) Usually in response to trauma
3) Radiopacity over unaltered canal
4) Associated with carious lesions
ADC Test Answer: 2
Internal resorption occurs due to trauma or other factors that stimulate the pulp, leading to resorption of the dentin from within, resulting in a characteristic appearance.
A patient who recently had a calculus removed from the kidney presented with a radiolucent area in the left maxilla with clinical evidence of swelling. The disease that you would immediately suggest is:
1) Diabetes
2) Thyrotoxicosis
3) Hyperparathyroidism
4) Osteoporosis
ADC Test Answer: 3
Hyperparathyroidism can lead to radiolucent lesions in the jaw due to increased osteoclastic activity and calcium mobilization from bones.
What is the dentist's role in identifying signs of domestic violence in a patient?
1) To ask the patient directly if they are being abused
2) To recognize and document physical and behavioral signs of abuse
3) To provide counseling services
4) To provide legal advice
The dentist's role involves recognizing and documenting any physical injuries or behavioral indicators that may suggest abuse.
The nerve to masseter passes 1. deep to the medial pterygoid muscle 2. posterior to temporomandibular joint 3. superior to zygomatic arch to enter the muscle on its medial surface 4. through the mandibular notch to enter the muscle on its medial surface
Anatomy Answer: 4The nerve to masseter passes through the mandibular notch to enter the muscle on its medial surface
For carious lesions, which diagnostic method is appropriate?
1) Carious halfway through enamel on proximal surface – Bitewing
2) Carious halfway through enamel on occlusal surface – Visual exam
3) Carious halfway through dentine not cavitated – Wet surface
4) Stained fissure – Bitewing and visual exam
Each diagnostic method is appropriate for the specific type of carious lesion described.
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.
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.
What is the most common site for oral cancer within the mouth?
1) Hard palate
2) L ateral borders of the tongue
3) Floor of the mouth
4) Buccal mucosa
The lateral borders of the tongue are the most frequently affected site for oral cancer, particularly in the context of squamous cell carcinoma.
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.
Local anaesthetic causing methemoglobinemia is:
1) Lignocaine
2) Prilocaine
3) Bupivacaine
4) All of the above
Methemoglobinemia is mainly caused by prilocaine but can also be caused by benzocaine and rarely reported with lignocaine.
For carious lesions, which diagnostic method is appropriate?
1) Carious halfway through enamel on proximal surface – Bitewing
2) Carious halfway through enamel on occlusal surface – Visual exam
3) Carious halfway through dentine not cavitated – Wet surface
4) Stained fissure – Bitewing and visual exam
Each diagnostic method is appropriate for the specific type of carious lesion described.
Which of the following fluoroquinolones does not require dose adjustment in a patient with creatinine clearance of < 50mg/min?
1) Ciprofloxacin
2) Trovafloxacin
3) Lomefloxacin
4) Sparfloxacin
Fluoroquinolones that are excreted mainly by non renal mechanisms: Pefloxacin Trovafloxacin Grepofloxacin Nalidixic acid
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.
Which is a commonly used medication for managing dental anxiety?
1) Antibiotics
2) Benzodiazepines
3) Analgesics
4) Antidepressants
Benzodiazepines are often prescribed for their anxiolytic effects, helping to alleviate anxiety in dental patients.
The part of the removable appliance which provides the anchorage is
1) Adams clasp
2) Base plate
3) Active labial bow
4) Guided springs
SOLUTION Baseplate: The hard plastic part of some retainers that covers the gum and has the wire components of the retainers attached to it.
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.
Two important factors for initiation of caries by oral streptococci are 1 production of glucosyl transferase and synthesis of insoluble dextran 2. production of acid and production or protease 3. production of collagenase and pro- duct ion of hyaluronidase 4. fermentation of mannitol and sorbitol and production of protease.
Microbiology Answer: 1Two important factors for initiation of caries by oral streptococci are production of glucosyl transferase and synthesis of insoluble dextran
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 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.
What material is LEAST usable for an impression of PFM (Porcelain-Fused-to-Metal)?
A. Alginate
B. Polyvinyl siloxane
C. Polyether
D. Agar
Alginate is primarily used for making preliminary impressions due to its set time and hydrophilic properties but does not provide the necessary detail and stability required for precise impressions needed for PFMs.
Which of the following shows highest permanent deformation following strain in compression :
1) Polysulphide impression material
2) Polyether impression material
3) Condensation silicones
4) Addition silicones
For permanent deformation following strain in compression, ranking is mentioned below: Polysulfide > polyethers > condensation silicone > addition silicone
Burs used for refinement and finishing of composites:
1) Fine carbide.
2) Diamond.
3) A and B.
4) Discs.
ADC Test Answer: 3
Refinement and finishing of composites often require a combination of both fine carbide and diamond burs, as each serves distinct functions in achieving a polished finish.
A child with a hypoplastic crown and both enamel and dentin being defective, the restoration is:
1) Composite with calcium hydroxide.
2) Amalgam with calcium hydroxide.
3) Zinc phosphate and zinc polycarboxylate cement.
4) Porcelain crown.
ADC Test Answer: 1
For children with hypoplastic teeth, a composite restoration is often preferred due to its aesthetic properties and bonding capabilities, especially when the dentin is also affected.
What should be avoided when documenting patient records?
1) Using clear language
2) Omitting relevant information
3) Keeping records up to date
4) Documenting consent
It is crucial to provide a complete picture of the patient's dental health to ensure proper care and treatment planning.
Which clinical sign might indicate the need for a referral to a physician
or specialist when treating a geriatric patient?
1) Mild tooth sensitivity
2) History of hypertension
3) Postural issues
4) Uncontrolled diabetes
Uncontrolled diabetes can lead to complications that affect
dental treatment, making it essential to refer the patient for medical
management.
The sprue former should be attached to the wax pattern 1. on a flat surface 2. in an area where the anatomy is not critical 3. at the thinnest point 4. at the point of greatest bulk
Dental Material Answer: 4The sprue former should be attached to the wax pattern at the area of more bulk
Which bacteria is primarily associated with enamel caries?
1) Lactobacillus
2) Actinomyces
3) Streptococcus mutans
4) Porphyromonas gingivalis
S. mutans is a major contributor to enamel caries due to its acidogenic and aciduric properties.
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
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 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.
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.
FPD and RPD Answer: 1
During setting, a gypsum-bonded investment
material will undergo an additional expansion if
it occurs:
What is the primary cause of syncope during dental procedures?
1) Anxiety and fear
2) Dehydration
3) Blood loss
4) Low blood sugar
The sight of blood and fear can cause a vasovagal response, leading to decreased peripheral resistance and blood pressure, resulting in cerebral anoxia and syncope.
A 6 year old child has a non-vital primary mandibular second molar which has a
draining sinus tract from he bifurcation area The most appropriate management
is
1) extraction.
2) observation.
3) pulpotomy.
4) direct pulp capping.
Fat Embolism is diagnosed by - 1. Fluffy Exudates in Retina 2. Fat Droplets in Sputum 3. Fat droplets in Urine
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.
Which of the following is NOT a standard precaution recommended to prevent the spread of infection in the dental setting?
1) Hand hygiene
2) Use of personal protective equipment (PPE)
3) Sterilization of reusable instruments
4) Sharing of patient-care items
Standard precautions in the dental setting include hand hygiene, use of PPE, and sterilization of reusable instruments.
The presence of schistocytes in a blood smear is indicative of what condition?
1) DIC
2) Thrombocytosis
3) Genetic clotting disorder
4) Stable hemoglobinopathy
Schistocytes, or fragmented red blood cells, are often observed in patients with disseminated intravascular coagulation (DIC) and indicate mechanical hemolysis.
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.
How are forces transmitted through rests?
1) Along the oblique axis
2) Parallel to the long axis of the tooth
3) Perpendicular to the tooth
4) Randomly throughout the denture
Rests are designed to transmit forces in a manner that aligns them parallel to the long axis of the supporting tooth.
Most of the pre ganglionic sympathetic fibres are 1 A fibres 2 B fibres 3 C Fibres 4 None of the above
Physiology Answer: 2- A fibres are myelinated fibres having fastest rate of conduction
Type 1 diabetes is more common in which of the following populations?
1) Hispanics
2) Africans
3) Asians
4) Non-Hispanic Whites
Type 1 diabetes has a higher incidence among non-Hispanic whites, particularly in children. This demographic shows a greater prevalence of the autoimmune condition compared to other ethnic groups.
What is force applied per unit area?
1) Strain
2) Stress
3) Couple
4) Center of resistance
SOLUTION Stress is the force applied per unit area while strain can be defined as the internal distortion per unit area.
Stress and strain are inter-related terms as stress is an external force acting upon a body while strain is the resultant of stress on that body.
Strain can be expressed in the form of a change in either the external dimension or internal energy of the body.
Tissue conditioning materials made of silicone are:
1) More resilient than plastic acrylic
2) Devoid of antimicrobial properties
3) Less durable than traditional materials
4) Typically harder than acrylics
ADC Test Answer: 1
Silicone lining materials are noted for their resilience and comfort, maintaining their cushioning properties over time compared to plastic acrylics.
What suture material is recommended for lip trauma and oroantral fistula?
1) Chromic gut
2) Black silk
3) Vicryl
4) Nylon
For lip trauma and oroantral fistula repair, Vicryl (polyglactin 910) is the recommended suture material.
Which of the following actions is NOT a responsibility of a dental professional when they suspect abuse or neglect?
1) Reporting the suspicion to the appropriate authorities
2) Investigating the situation personally
3) Documenting observations in the patient’s record
4) Providing support to the patient
Dental professionals should report their suspicions rather than investigate, as this is outside their scope of practice.
The air-water spray used as a coolant in high speed cutting of a cavity will
1. Decrease pulp damage.
2. Reduce frictional heat.
3. Keep the operating site clean.
4. Reduce clogging of cutting instruments.
1) (1) (2) (3)
2) (1) and (3)
33) (2) and (4)
4) All of the above.
The air-water spray serves multiple purposes during dental procedures:
- Decrease pulp damage: By cooling the tooth structure, it helps prevent thermal injury to the pulp.
- Reduce frictional heat: The spray minimizes heat generated by the cutting instrument.
- Keep the operating site clean: The spray helps wash away debris and blood, providing better visibility.
- Reduce clogging of cutting instruments: It helps to clear debris from the cutting surface, maintaining instrument efficiency.
Ankylosed primary second molars may clinically exhibit
1) percussion sensitivity.
2) infra-occlusal position.
3) temperature sensitivity.
4) buccolingual displacement.
Ankylosed teeth fail to erupt with the adjacent teeth, leading to an infra-occlusal appearance as the jaw grows.
What is the importance of confidentiality in dental records management?
1) It allows for open communication between dentist and patient
2) It protects the dentist from legal issues
3) It ensures that financial information is secure
4) It is not important
Confidentiality fosters trust and encourages patients to share sensitive information, which is crucial for effective treatment.
Which blood pressure reading is considered “prehypertension” according to recent classifications? 1) <120/80 mmHg 2) 120-139/80-89 mmHg 3) 140-159/90-99 mmHg 4) ?180/110 mmHg
Pathology and Medicine Answer: 2Prehypertension is defined as a blood pressure between 120-139 systolic and 80-89 diastolic.
What is the most common occupational health problem among dentists?
1) Tinnitus
2) Musculoskeletal pain
3) Hypertension
4) Hearing loss
According to the study conducted among dentists in southern Thailand, musculoskeletal pain was the most common occupational health problem, with 78% of the dentists reporting it.
The recommended level of fluoride in drinking water for temperate climate zones
is 1 ppm. This level is considered optimal for preventing tooth decay and
promoting dental health. It is important to maintain the right balance of
fluoride in drinking water as too little fluoride may not provide the desired
benefits, while too much fluoride can lead to dental fluorosis, a condition that
causes discoloration and damage to tooth enamel. Therefore, 1 ppm is the
recommended level to ensure the right amount of fluoride for dental health.
Before restoring a tooth with composite, the area is etched. Accidental contamination occurs with saliva, Therefore
1) the area is re-etched before restoration
2) the area is air-dried using an air spray and continue with restoring
3) wipe the saliva with cotton and continue to restore.
4) add excess composie material and cure it
Etching of tooth surface with 37% phosphoric acid creates microporosities in the enamel and dentin.
After etching the surface energy of the enamel will increase. This will make it very sticky to any kind of contaminants. If salivary contamination will occur, the salivary proteins will precipitate in the microporosities. This will prevent the adequate penetration of the bonding agent, therby reducing the micotag formation. Hence, complete isolation is essential.
All are non-verbal characteristics of aggressive behavior except:
1) Staring the person out.
2) Leaning forward or over.
3) Scowling when angry.
4) Sexual or racist remarks.
The given answer, "Sexual or racist remarks," is the only option that does not pertain to non-verbal characteristics of aggressive behavior. Staring the person out, leaning forward or over, and scowling when angry are all non-verbal cues that can indicate aggression. However, making sexual or racist remarks involves verbal communication rather than non-verbal cues.
What is the primary component of saliva that helps in remineralization?
1) Lactoferrin
2) Calcium and phosphate ions
3) Urea
4) Glycoproteins
Saliva contains calcium and phosphate ions, which are essential for the remineralization of teeth.
A picture of the tongue with an ulcer on the lateral border. What drug causes it?
1) ACE inhibitors
2) Calcium channel blockers
3) Potassium-sparing drugs
4) NSAIDs
ACE inhibitors can cause oral side effects, including ulcers on the tongue and other mucosal surfaces.
What is the average number of 15-year-olds who have lost 6-7 teeth?
1) 1.1
2) 3.1
3) 4.7
4) 5.5
Current statistics indicate that approximately 3.1% of 15-year-olds have lost 6-7 teeth due to caries or other dental issues.
You notice a lesion on the labial alveolar mucosa of the lower right lateral incisor tooth of one of your patients and decide to take a biopsy. Which nerve would require local anesthesia in order to carry out a pain-free biopsy?
1) The lingual nerve
2) The buccal nerve
3) The incisive nerve
4) The mental nerve
The incisive nerve would require local anesthesia in order to carry out a pain-free biopsy.
The gold casting alloy indicated for use in dental bridges is:
1) Type I
2) Type II
3) Type III
4) Type IV
ADC Test Answer: 4
Type IV gold casting alloys are suitable for use in bridges as they offer adequate strength and resistance to wear.
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.
What is the advantage of digital dental records over traditional paper records?
1) They are more environmentally friendly
2) They are easier to store and retrieve
3) They can be easily shared with other healthcare providers
4) They reduce the risk of loss or damage
Digital dental records are stored electronically, which makes them easier to store, retrieve, and organize compared to paper records.
A patient returns from holiday with diarrhea and vomiting after eating street food. What is the likely diagnosis?
1) Hepatitis A
2) Norovirus infection
3) Gastroenteritis
4) Food poisoning
Hepatitis A is often associated with consuming contaminated food or water, especially in areas with poor sanitation.
Ideally, Orthodontic traction to pull an impacted tooth to line of arch should begin at
1) 2-3 months post surgically
2) As soon as possible after surgery
3) After a waiting period of at least1.5 months
4) Only the method of traction is critical, not the time
SOLUTION Mechanical approaches for aligning unerupted teeth.
Ideally a fixed orthodontic appliance should already be in place before the unerupted tooth is exposed, so that orthodontic force can be applied immediately.
If this is not practical, active orthodontic movement should being no later than 2 or 3 weeks post-surgically.
What is the typical pH of a healthy oral environment?
1) 5.0-5.5.
2) 6.0-6.5.
3) 7.0.
4) 7.5-8.0.
ADC Test Answer: 3
A healthy oral environment has a neutral pH of around 7.0, which helps maintain the integrity of the tooth structure and prevent dental decay.
Which of the following is the first drug to be prescribed in status asthmaticus?
1) Salbutamol
2) Humidified oxygen inhalation
3) Hydrocortisone hemisuccinate
4) Sodium bicarbonate infusion
Pharmacology Answer: 3
Status asthmaticus/Refractory asthma Any patient of asthma is susceptible to develop acute severe asthma which may be life-threatening.
(i) Hydrocortisone hemisuccinate 100 mg (or equivalent dose of another glucocorticoid) i.v. stat, followed by 100-200 mg 4-8 hourly infusion; may take upto 6 hours to act.
(ii) Nebulized salbutamol (2.5-5 mg) + ipratropium bromide (0.5 mg) intermittent inhalations driven by O2 .
(iii) High flow humidified oxygen inhalation
(iv) Salbutamol/terbutaline 0.4 mg i.m./s.c. may be added since inhaled drug might not get to smaller bronchi owing to severe narrowing/plugging with secretions
(v) Intubation and mechanical ventilation if needed
(vi) intensive antibiotic therapy to be used for treating chest infection
(vii) Treat dehydration and acidosis with saline + sod. Bicarbonate/lactate infusion.
What enzyme does Streptococcus mutans produce that plays a key role in
converting dietary sugars into extracellular polysaccharides, which contribute
to bacterial adherence and biofilm formation?
1) Amylase
2) Glucosyltransferase (GTF)
3) Fructosyltransferase
4) Sucrase
S. mutans produces glucosyltransferase, which converts dietary sugars, particularly sucrose, into extracellular polysaccharides like glucans and fructans that facilitate bacterial adherence to tooth structures and promote biofilm formation.
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.
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.
Which cement is commonly used for temporary cementation?
1) Zinc polycarboxylate cement
2) Zinc oxide eugenol
3) Glass ionomer cement
4) Resin cement
Zinc oxide eugenol is widely used for temporary cementation due to its sedative properties and ease of removal.
What is the most common failure of a Maryland bridge?
1) Fracture of the pontic
2) Retention failure
3) Caries at the abutment teeth
4) Periodontal disease
Retention failure is the most common problem associated with Maryland bridges, often due to inadequate bonding to the enamel.
A patient with a recent complete denture has an ulcer in the buccal sulcus. What is the likely cause?
A. Incorrect occlusion
B. Denture stability
C. Overextended flange
D. Material reaction
An ulcer in the buccal sulcus of recent denture wearers is often a result of overextended denture flanges irritating the soft tissues, leading to ulceration.
The essential. sulphur containing amino acid is: 1. Methionine 2. Cystetne 3. Cystine 4. Valine
Biochemistry Answer: 1Methionine is sulphur containing AminoAcid
All of the following have stratified squamous epithelium except:
1) Buccal mucosa
2) Pharynx
3) Maxillary sinus
4) Trachea
The maxillary sinus is lined with ciliated columnar epithelium, while the others have stratified squamous epithelium.
A patient who had epilepsy 10 years ago but is now in control. Which technique will you use?
1) Inhalation sedation
2) IV sedation
3) Carry on with treatment
If the patient's epilepsy is well-controlled, routine dental treatment can proceed without special precautions.
When adjusting the occlusal plane of natural teeth opposed by a complete or partial denture, it should be completed:
1) After the teeth have been set on the trial denture.
2) Immediately after making the final casts.
3) Upon delivery of the denture.
4) After the diagnosis and treatment plan has been established.
FPD and RPD Answer: 4Adjusting the occlusal plane is a foundational step that impacts all subsequent processes in prosthetic rehabilitation. This adjustment should be based on a comprehensive diagnosis and treatment plan to ensure compatibility with the patient’s anatomy and function.
What is the most common type of periodontal charting?
- Probing depths
- Gingival recession
- Tooth mobility
- Furcation involvement
Probing depths are the most commonly recorded periodontal charting measurement.
The cricothyroid artery is a branch of the 1. occipital artery 2. superior thyroid artery 3. facial artery 4. superficial temporal artery
Anatomy Answer: 2The cricothyroid artery is a branch of the superior thyroid artery
What is the primary purpose of a dental unit waterline treatment? 1) To improve the taste of the water 2) To prevent biofilm formation and contamination 3) To enhance the aesthetic appearance of the dental unit 4) To reduce the need for sterilization
Occupational Hazards Answer: 2Regular treatment of dental unit waterlines is essential to prevent the growth of biofilms and ensure that the water used in procedures is safe and free from pathogens.
For lower premolars, the purpose of inclining the handpiece lingually is to:
1) Avoid buccal pulp horn
2) Avoid lingual pulp horn
3) Remove unsupported enamel
4) Conserve lingual dentine
ADC Test Answer: 1
Inclining the handpiece lingually helps in avoiding the buccal pulp horn while preparing the cavity.
What is the role of a dental therapist in the care of a patient with special needs?
1) To provide all aspects of dental treatment under the supervision of a dentist
2) To perform only simple procedures like cleanings and fillings
3) To manage the patient's medical conditions
4) To provide oral health education and preventive care
A dental therapist is a mid-level dental provider who can perform various procedures under the supervision of a dentist.
A child has received a successful inferior alveolar nerve block using 1.5ml of
2% lidocaine with 1:100,000 epinephrine. However, during placement of a rubber
dam clamp on the first permanent molar, the child complains that the “tooth
ring” is hurting. Which of the following is the most appropriate management?
1) Wait 15 minutes until more profound anesthesia is achieved
2) Anesthetize the lingual nerve with the remaining lidocaine.
3) Anesthetize the long buccal nerve with the remaining lidocaine.
4) Proceed with treatment without rubber dam.
The long buccal nerve supplies the gingiva in the region and may require additional anesthesia
A cyst at the apex of an upper central incisor measuring 1 cm in diameter is visualized in radiograph and confirmed by aspiration biopsy; which method of treatment would you consider?
1) Extraction of the central incisor and retrieving the cyst through the socket
2) Exteriorizing the cyst through the buccal bone and mucosa
3) Making a mucoperiosteal flap and removing the cyst through an opening made in the alveolar bone, followed by tooth removal.
4) Making a mucoperiosteal flap and removing the cyst through an opening made in the alveolar bone, followed by endodontic treatment.
ADC Test Answer: 4
The best approach is to create a mucoperiosteal flap, remove the cyst through an opening in the alveolar bone, and then perform endodontic treatment.
Kiwi is known to potentially cause which types of hypersensitivity reactions?
1) Type II
2) Type III
3) Type I
4) Type IV
Kiwi can trigger type I hypersensitivity reactions, such as anaphylaxis and urticaria, due to IgE-mediated responses to specific proteins in the fruit.
The first heart sound relates to 1. Closure of the A-V valves 2. Opening of the A-V valves 3. Excitation of the auricles 4. Closure of the aortic valve
Physiology Answer: 2The first heart sound relates to Opening of the A-V valves
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.
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.
Drugs mostly cross biological membranes by
1) Passive diffusion
2) Active diffusion
3) Active transport
4) Carrier mediated transport
Passive diffusion: The movement of drug across a membrane in a manner driven solely by the concentration gradient.
The oral lesion of warty dsykeratoma is described as a small whitish area of the mucosa with a central depression
What type of hypersensitivity reaction is involved in the pathogenesis of contact dermatitis?
1) Type I
2) Type II
3) Type III
4) Type IV
Contact dermatitis is mediated by a delayed-type hypersensitivity reaction (Type IV), which involves T-cell activation.
The largest and longest root canal of the maxillary second molar is the 1. lingual 2. mesiobuccal 3. distobuccal 4. distal
Dental Anatomy Answer: 1The largest and longest root canal of the maxillary second molar is the lingual
For a cantilever bridge replacing a missing maxillary canine, the best abutments are:
1) Both premolars
2) Incisor and premolar
3) Lateral and central incisors
4) Single central incisor
ADC Test Answer: 1
A cantilever bridge requires support from adjacent teeth on one side of the space, making both premolars ideal abutments for the missing canine.
Which muscle protrudes the hyoid?
1) Suprahyoids
2) Infrahyoids
3) Geniohyoid
4) Stylohyoid
The hyoid bone is a U-shaped bone located in the neck, just above the larynx.
Brief explanation of the other muscles:
1) Suprahyoids: The suprahyoid muscles are a group of muscles that are situated
superior to the hyoid bone. Their primary function is to elevate the hyoid
during activities like swallowing. They include the digastric, stylohyoid, and
mylohyoid muscles. However, they do not directly protrude the hyoid.
2) Infrahyoids: The infrahyoid muscles are a group of muscles that are situated
inferior to the hyoid bone. They function to depress the hyoid bone during
activities like swallowing and speech. They include the sternohyoid, omohyoid,
thyrohyoid, and geniohyoid muscles.
4) Stylohyoid: The stylohyoid muscle is one of the infrahyoid muscles and it
originates from the styloid process of the temporal bone and inserts into the
lesser cornu and the body of the hyoid bone. Its main function is to elevate and
draw the hyoid bone backward and laterally. It does not directly protrude the
hyoid.
The geniohyoid muscle is the most specific in its action to protrude the hyoid
bone .
The use of a reservoir on the sprue of a wax pattern decreases
1) volumetric changes in the casting.
2) casting porosity from inclusion of gases.
3) casting porosity from inclusion of foreign bodies.
4) casting porosity during solidification
A reservoir serves as a storage area for molten material and allows for a
consistent flow of metal into the mold during the casting process. This helps to
fill in any shrinkage that occurs during cooling and solidification, thereby
reducing the formation of porosity defects in the final casting.
What is the primary feature of trigeminal neuralgia?
1) Constant dull pain
2) Intermittent sharp pain triggered by stimuli
3) Pain that worsens at night
4) Pain associated with swelling
Trigeminal neuralgia is characterized by sudden, severe, and sharp facial pain that can be triggered by light touch or other stimuli.
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.
The following statement about bupivacaine are true, except:
1) Must never be injected into vein
2) More cardiotoxic than lignocaine
3) 0.25 % is effective for sensory block
4) Produces methemoglobinemia
Bupivacaine is long acting local anaesthetic with high cardiotoxicity so it should not be injected in vein i.e.
Following the injection of 1.8ml of 2% lidocaine with 1:100,000 epinephrine, a
nervous 22 year old male with well
controlled insulin dependent diabetes states that he feels dizzy and weak. Beads
of sweat have accumulated on
his forehead and upper lip. He is quite pale. The initial management of this
patient is to
1) administer glucagon 1.0mg.
2) administer epinephrine 0.5mg.
3) administer diphenhydramine 50mg.
4) elevate the patient's legs and administer 100% oxygen.
These symptoms suggest vasovagal syncope or hypoglycemia; elevating legs improves circulation, and oxygen supports recovery.
What is the typical shape of a pit and fissure lesion?
1) Inverted V-shape
2) V-shape
3) U-shape
4) O-shape
Pit and fissure lesions begin narrow and widen as they progress into the tooth structure.
Which component of amalgam gives strength?
1) Copper
2) Silver
3) Tin
4) Zinc
Copper enhances the strength and hardness of dental amalgam, making it a critical component in its formulation.
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 behavior might indicate that a patient is anxious during a dental consultation?
1) Asking questions about the procedure
2) Maintaining eye contact
3) Fidgeting and avoiding eye contact
4) Relaxed body language
Physical signs, such as fidgeting and avoiding eye contact, are common indicators of anxiety in patients.
What happens to the pH of the mouth after exposure to cariogenic foods?
1) It increases
2) It decreases
3) It remains the same
4) It fluctuates
Cariogenic bacteria ferment sugar, producing lactic acid that lowers the pH of the mouth, leading to demineralization of tooth structure.
The modulus of elasticity is defined as:
1) The point of material failure
2) The stress at the proportional limit
3) The ratio of stress to strain within the proportional limit
4) The maximum strain before yielding
ADC Test Answer: 3
The modulus of elasticity quantifies a material's resistance to deformation when stress is applied, specifically describing the linear relationship between stress and strain.
What is the primary concern when using templates for dental records?
- Lack of flexibility
- High cost of implementation
- Limited accessibility for patients
- Requires advanced IT skills
While templates can help organize information, the primary concern is that they may not capture all individual aspects of a patient's case or allow for the nuances of personalized care.
A single force applied at which point of a tooth will allow complete translation of the tooth.
1) At the apex
2) At the incisal edge
3) At the center of resistance
4) At the center of rotation
SOLUTION Center of resistance- Point analogous to the centers of gravity.
Generally it is constant.In single root it lies between one third and one half of the root apical to alveolar crest.
In multi rooted tooth it lies 1-2 mm apical to furcation
Which ion acts as a second messenger?
1) Sodium
2) Potassium
3) Calcium
4) Magnesium
Calcium ions serve as important second messengers in various cellular signaling pathways, facilitating communication within and between cells.
In Class II preparation, it is difficult to place the gingival seat when preparation is extended too gingivally because the:
1) Enamel rods are directed occlusally
2) Marked cervical constriction
3) Dentin is more sensitive
4) Periodontal attachment is compromised
ADC Test Answer: 2
When a Class II cavity is extended gingivally, the marked cervical constriction of the tooth can make it difficult to adequately place a gingival seat, which is necessary for effective retention and proper contouring of the restoration.
What is the recommended protocol for handling a needlestick injury in the
dental office?
1) Immediately notify the supervisor and seek medical attention
2) Apply pressure to the wound and wash thoroughly with soap and water
3) Ignore the injury and continue working
4) Apply an antiseptic to the wound and report the incident later
If a needlestick injury occurs, it is crucial to immediately notify the supervisor and seek medical attention. This allows for timely administration of post-exposure prophylaxis and proper management of the potential risk of bloodborne pathogen transmission.
What is the strength of adrenaline used in dental procedures?
1) 1:100
2) 1:1000
3) 1:10000
4) 1:5000
The standard concentration of adrenaline used in dental procedures is 1:1000, which is effective for hemostasis and prolonging the duration of local anesthesia.
What type of study model is commonly used in research that leads to
a common answer?
1) Longitudinal study
2) Cross-sectional study
3) Case-control study
4) Cohort study
Cross-sectional studies are observational studies that analyze data from a population at a specific point in time to determine the prevalence of a particular outcome or disease. They are often used to provide a snapshot of a population's health and can lead to common answers regarding the prevalence of certain conditions or exposures. They are different from longitudinal studies, which follow the same individuals over time to observe changes; case-control studies, which compare individuals with and without a disease to identify risk factors; and cohort studies, which follow a group of individuals with a common characteristic to observe the development of a disease or outcome.
Which type of caries occurs at the junction of tooth structure and restorative
material?
1) Primary caries
2) Secondary/recurrent caries
3) Residual
4) Incipient caries
Secondary or recurrent caries occur at the junction of tooth structure and restorative material, often due to leakage.
A lingual approach for a conservative Class III preparation for a composite
resin requires
1) a retentive internal form.
2) parallelism of the incisal and gingival walls.
3) maintenance of the incisal contact are1)
4) All of the above.
When preparing a Class III cavity using a lingual approach, several factors must be considered to ensure the success of the restoration:
- A retentive internal form: The preparation must have features that provide retention for the composite material, preventing it from dislodging over time.
- Parallelism of the incisal and gingival walls: Maintaining parallel walls helps in achieving a proper fit for the composite material and ensures that the restoration is stable and aesthetically pleasing.
- Maintenance of the incisal contact area: Preserving the incisal contact is crucial for maintaining the functional and aesthetic aspects of the tooth, as it helps in proper occlusion and prevents shifting of adjacent teeth.
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.
The most likely reason for porcelain fracturing off a long and narrow metal-ceramic fixed partial denture is that the framework alloy had an insufficient:
1) Elastic modulus.
2) Proportional limit.
3) Fracture toughness.
4) Tensile strength.
FPD and RPD Answer: 1
Explanation: An insufficient elastic modulus means the framework cannot adequately resist deformation, leading to stress
and eventual fracture of the porcelain.
Suppuration results from the combined action of several factors. Which of the following is not one of them?
1) Necrosis
2) Presence of lymphocytes
3) Collection of neutrophils
4) Accumulation of tissue fluid
Neutrophils primarily mediate the inflammatory response and pus formation, while lymphocytes are more involved in chronic inflammation, not in the acute pus production.
Which of the following drugs can cause methemoglobinemia?
1) Lidocaine
2) Procaine
3) Prilocaine
4) Bupivacaine
Prilocaine is a local anesthetic that can cause methemoglobinemia.
Which of the following is NOT part of a typical adult dental record?
1) Medical history
2) Social history
3) Dental x-rays
4) List of family members' names
A typical adult dental record includes a medical history to inform the dentist about any health issues that may affect dental treatment, a social history to understand lifestyle factors impacting oral health, and dental x-rays to visualize the patient's oral structures. While family dental histories are sometimes noted, a list of family members' names is not typically part of a standard dental record.
Ethosuximide is the drug of choice for treatment of ?
1) Generalized tonic clonic seizures
2) Absence seizures
3) Simple partial seizures
4) Complex partial seizures
Ethosuximide is the drug of choice for treatment of absence seizures. Other drugs used in the management of absence seizures are valproic acid, lamotrigine and clonazepam.
Which of the following statements is correct regarding the size of the face at birth?
1) The face forms 2/3rd the bulk of head whereas in the adult it forms 1/3rd of the bulk.
2) The face forms the bulk of the head through life
3) The face forms 1/3rd the bulk of the head, whereas in the adult it forms 1/8th of the bulk
4) The face forms only 1/8th of the bulk of head whereas in the adult it forms 1/3rd to of the bulk.
Due to the advanced state of the growth of brain this size at birth of the head of the infant is relatively large .
Paraesthesia in the distribution of the inferior alveolar nerve, including the lower lip, strongly suggests a mandibular fracture. This is often due to trauma to the inferior alveolar nerve.
Glycine is a Glycogenic amino acid, only
Which of the following is NOT a component of informed consent in dentistry?
1) Explanation of the diagnosis
2) Description of the proposed treatment
3) Discussion of the risks and benefits of the treatment
4) Patient's agreement to pay for the treatment
While financial considerations are important in the overall decision-making process, informed consent specifically pertains to the patient's understanding and agreement to the medical aspects of the treatment, not the financial agreement.
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.
Which of the following is a form of emotional abuse?
1) Hitting a partner
2) Constantly belittling a child
3) Withholding food
4) Ignoring a patient's medical needs
Emotional abuse involves harming a person's self-esteem or emotional well-being, such as through belittling or verbal insults.
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.
What is the main function of EDTA?
1) Antimicrobial agent
2) Chelating agent
3) Local anesthetic
4) Antiseptic
EDTA is a chelating agent that helps in negotiating sclerosed canals and dissolving inorganic components of the smear layer.
What cement do you use to bond an alumina core ceramic crown?
1) Panavia
2) Resin modified glass ionomer cement
3) Zinc phosphate
4) Glass ionomer cement
Panavia is a resin cement specifically designed for bonding ceramic restorations, providing strong adhesion to alumina cores.
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.
What is the sensory nerve supply to the temporalis muscle?
1) V2
2) V3
3) Facial nerve
4) Glossopharyngeal nerve
The temporalis muscle receives both sensory and motor innervation from the mandibular branch of the trigeminal nerve (V3).
What information is included in a dental chart?
1) Patient's name and contact details
2) A visual representation of the patient's teeth and their conditions
3) Treatment notes and plans
4) All of the above
A dental chart is a graphic representation of a patient's mouth that includes all teeth, their conditions, restorations, and any other relevant oral information.
Which component of a partial denture framework provides the best indirect retention?
1) Rest.
2) Circumferential clasp.
3) Lingual strap.
4) Proximal plate.
FPD and RPD Answer: 1Rests prevent rotational forces around the fulcrum line, contributing to effective indirect retention. They stabilize the framework and minimize dislodgement.
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 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.
Can informed consent be obtained from a patient who is under the influence of
sedation?
1) Yes, as long as the patient can still communicate their wishes
2) No, sedation impairs the patient's ability to understand and make decisions
3) Yes, because the patient's consent was obtained before administration of
sedation
4) It depends on the type and level of sedation
Informed consent must be obtained when the patient is fully conscious and has the mental capacity to comprehend the information provide4) If sedation affects the patient's ability to make informed decisions, consent should be obtained before administration.
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.
What is the purpose of a biosafety cabinet in a dental laboratory?
1) To provide a sterile work environment
2) To protect the technician from inhaling dust
3) To prevent cross-contamination
4) To store sterile materials
A biosafety cabinet provides a controlled environment with laminar
airflow to protect the technician and the materials from cross-contamination
during procedures involving infectious materials.
Untrue about desflurane is:
1) Rapid induction and recovery
2) High vapour pressure
3) Induction is very smooth
4) Does not produce fluoride
Desflurane has a pungent odor, making induction unpleasant and potentially causing laryngospasm or bronchospasm.
Drug implicated for prolonging QT interval in a premature baby is :
1) Domperidone
2) Metoclopramide
3) Cisapride
4) Omeprazole
Cisapride can cause QT prolongation when administered along with drugs like ketoconazole which inhibit hepatic cytochrome p-450 CYP 3A4 enzyme.
What is a common side effect of ACE inhibitors?
1) Hyperkalemia
2) Cough
3) Constipation
4) Bradycardia
ACE inhibitors frequently cause a dry cough as a side effect due to bradykinin buildup.
What is the best approach to ensure the cooperation of a patient with autism spectrum disorder during dental treatment?
1) Sticking strictly to a predefined treatment schedule
2) Providing a structured and predictable environment
3) Using bright, flashing lights in the operatory
4) Asking the patient to hold their mouth open without support
Patients with autism may benefit from a structured environment with minimal sensory stimulation.
Which class of antihypertensive agents is contraindicated in pregnancy due to risk of fetal harm?
1) Diuretics
2) Calcium channel blockers
3) ACE inhibitors
4) Alpha-blockers
ACE inhibitors are contraindicated during pregnancy because they can harm fetal development.
What is the mean, mode, and median?
1) Mean is the most frequent value, mode is the average, median is the middle value
2) Mean is the average, median is the middle value, mode is the most frequent value
3) Mean is the middle value, mode is the average, median is the most frequent value
4) All are the same
The mean is calculated by averaging all values, the median is the middle value when arranged in order, and the mode is the value that appears most frequently in a dataset.
With Silicon Rubber Impression Materials 1. Three stone dies can be constructed 2. It is not possible to construct successive stone dies or casts 3. Four stone dies can be constructed 4. It is possible to construct successive stone dies or casts
Dental Material Answer: 2It is not possible to construct successive stone dies or casts with Silicon Rubber Impression Materials
Which two teeth can only be removed by rotation?
1) Maxillary central incisors and mandibular central incisors
2) Maxillary second premolars and mandibular first molars
3) Maxillary central incisors and mandibular second premolars
4) Maxillary first molars and mandibular central incisors
These teeth have single roots and are not multi-rooted, allowing for removal by rotation only.
While combining NaOCH and H2O2 as irrigants
1) H2O2 should be used last
2) NaOCH should be used last
3) First irrigation should be done by normal saline
4) NaOCH and H2O2 should never be used simultaneously
Because residual H2O2 might react with debris and produce gas that can cause continuous pain.
What is a common appearance of vertical tooth fracture?
1) Perio abscess-like appearance
2) Displacement of fragments
3) A clear film of pus
4) Tooth mobility
ADC Test Answer: 1
Vertical root fractures often present as periodontal abscesses, as the fracture involves the root structure and can lead to localized periodontal inflammation.
Tourniquet cannot be released before ....... minutes after Beir's block
1) 5 minutes
2) 10 minutes
3) 30 minutes
4) 60 minutes
Local Anesthesia Answer: 3
30 minutes Tourniquet once inflated and drug given, it cannot be released before half an hour as it is assumed that it takes this much time for drug to be completely out of vascular compartment.
What is the white line in Winter's classification of third molar impaction?
1) Indicates the level of the tooth's root apex
2) Indicates the amount of bone covering the tooth
3) Indicates the difference in occlusal level of 1st and 2nd molars
4) Indicates the depth of the tooth below the alveolar crest
The white line in Winter's classification runs touching the occlusal surfaces of the 1st and 2nd molars and extends posteriorly, indicating the occlusal plane and the level of the impacted tooth.
What is the primary risk of chisel and mallet technique for bone removal?
1) Damage to the adjacent teeth
2) Increased risk of infection
3) Increased risk of bone fracture
4) Increased risk of bleeding
The chisel and mallet technique requires careful execution as it can lead to fractures in the jaw bone if not performed correctly.
What is the primary cause of an elevator fracture during tooth extraction?
1) Excessive force
2) Incorrectly angled elevator
3) Weak tooth structure
4) Inadequate anesthesia
Applying too much force can lead to tooth fracture, especially if the elevator is not inserted correctly.
What is the most common oral manifestation of systemic lupus erythematosus?
1) Lichen planus-like lesions
2) Oral ulcers
3) Gingival hyperplasia
4) Fungal infections
Oral ulcers are a common oral manifestation seen in patients with systemic lupus erythematosus.
What antibiotic is used to manage a superinfected herpetic lip lesion?
1) Ciprofloxacin
2) Metronidazole
3) Cefuroxime
4) Amoxicillin
Metronidazole is effective against anaerobic bacteria and is often used for superinfected lesions, including herpetic lesions.
The pain after the application of force after activation during fixed mechanotherapy is likely to disappear within how much time ?
1) 24 hours
2) 2 to 4 days
3) 4 to 8 days
4) 10 days
SOLUTION If heavy pressure is applied to a tooth, pain develops almost immediately as the PDL is literally crushed. If appropriate orthodontic force is applied, the patient feels little or nothing immediately.
There is no excuse for using force levels for orthodontic tooth movement that produce immediate pain of this type.
The pain typically lasts for 2 to 4 days, and then disappears until the orthodontic appliance is reactivated. At that point, a similar cycle may recur, but for almost all patients, the pain associated with the initial activation of the appliance is the most severe.
Which of the following has the highest sucrose content?
1) Ice cream
2) Canned juice
3) Cough syrups
4) Breakfast cereal
Cough syrups often contain high amounts of added sugars, including sucrose, to improve taste and mask other ingredients, making them higher in sugar content than the other options.
Which of the following is an example of implied consent?
1) A patient signing
a consent form for surgery
2) A patient verbally agreeing to a dental cleaning
3) A patient nodding in agreement when asked if they understand the procedure
4) A patient refusing to undergo a procedure
Implied consent occurs when a patient’s actions suggest agreement without formal documentation.
Which shape describes a triangular occlusal rest?
1) Circular
2) Triangular
3) Boomerang-shaped
4) Cingulum-shaped
The triangular occlusal rest is specifically shaped to fit the contours of the occlusal surface.
What is the best way to communicate with an anxious patient during a dental procedure?
1) Speak in a loud, firm voice
2) Use technical dental terms
3) Speak in a calm, gentle, and reassuring manner
4) Avoid eye contact
Communicating with a calm and gentle tone helps to reduce the patient's anxiety and maintains trust in the dental professional.
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.
Attrition refers to:
1) Wear due to chemical exposure
2) Natural wear from tooth-to-tooth contact
3) Loss of dentin due to bacteria
4) Abrasion from external materials
ADC Test Answer: 2
Attrition involves the mechanical wearing down of the biting surfaces of teeth, primarily from occlusal contact during chewing.
What does T2 indicate in the TNM classification?
1) Tumor size less than 2 cm
2) Tumor size between 2-4 cm
3) Tumor size greater than 4 cm
4) Tumor extending to adjacent structures
T2 indicates that the tumor measures between 2 and 4 cm in its greatest dimension, which is important for staging cancer.
Which of the following statements about muscle fibers is correct?
1) The A band is made of Myosin
2) Troponin combines with calcium
3) Troponin has I, T, and C subcomponents
4) All of the above
All the statements are correct.
What is the term for an irrational fear of dental procedures?
1) Odontophobia
2) Gag reflex
3) Hypochondria
4) Agoraphobia
Odontophobia is a specific phobia characterized by fear of dental procedures or the dental environment.
permanent maxillary First molar teeth normally has four root canals
What should a dental practitioner do if a patient’s blood pressure is 185/115 mmHg? 1) Proceed with all treatments 2) Defer elective treatments, provide only emergency care 3) Treat as normal with local anesthesia 4) Administer sedative and treat immediately
Pathology and Medicine Answer: 2Blood pressure readings ?180/110 mmHg require deferral of elective treatments, focusing only on emergency care.
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.
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.
What is the primary function of lactoferrin in the oral cavity?
1) To bind and sequester iron for bacterial metabolism
2) To break down bacterial cell walls
3) To neutralize bacterial enzymes
4) To stimulate the production of saliva
Lactoferrin is an iron-binding protein that deprives cariogenic bacteria of the iron they need to produce acid and other harmful substances, thereby inhibiting their growth and activity.
The essential ingredient of dental inlay investment are :
1) Quartz, cristobalite
2) β hemihydrate
3) α hemihydrate
4) Ammonium phosphate
The essential ingredients of the dental inlay investment employed with the conventional gold casting alloys are a-hemihydrate of gypsum, quartz, or cristobalite, which are allotropic forms of silica.
Signs and symptoms that commonly suggest cardiac failure in a patient being assessed for oral surgery are:
1) Elevated temperature and nausea
2) Palpitations and malaise
3) Ankle edema and dyspnea
4) Erythema and pain
ADC Test Answer: 3
Symptoms of congestive heart failure often include edema in the lower extremities and difficulty breathing, which should be monitored in patients prior to surgery.
Which of the following is NOT a typical adverse effect of opioids?
1) Diarrhea
2) Somnolence
3) Constipation
4) Nausea
Opioids are commonly associated with constipation due to their effect on the gastrointestinal tract, which slows down bowel movements. They also frequently cause somnolence and nausea due to their action on the central nervous system. Diarrhea, however, is not a typical side effect of opioid use. In contrast, opioids are often used to treat diarrhea associated with conditions such as irritable bowel syndrome and other gastrointestinal disorders due to their constipating effects.
Which of the following is an indication for a pulpotomy on a primary tooth?
1) Radiographic evidence of internal root resorption.
2) Involvement of interradicular bone with no fistula
3) Involvement of interradicular bone with a fistula
4) Signs and symptoms of reversible pulpitis.
Pulpotomy is indicated when inflammation is limited to the coronal pulp, preserving vitality of the radicular pulp.
A retrograde filling is indicated
1) when the apical foramen cannot be sealed by conventional endodontics.
2) when a root perforation needs to be sealed
3) when conventional endodontics is impractical.
4) All of the above.
Retrograde filling is a procedure used in endodontics to seal the root canal system from the apex when conventional methods are not feasible. This can occur in various situations:
- Apical foramen sealing issues: If the conventional approach fails to adequately seal the apex, a retrograde filling can provide an alternative solution.
- Root perforation: In cases where there is a perforation in the root, retrograde filling can help seal the area and prevent contamination.
- Impracticality of conventional methods: Situations such as complex anatomy or previous failed treatments may necessitate a retrograde approach to ensure proper sealing and treatment success.
What is the name of the surgical instrument used for luxating a tooth during extraction?
1) Elevator
2) Forceps
3) Excavator
4) Chisel
Forceps are the primary instruments used for luxating (rocking) and removing teeth during extraction procedures.
Most potent opioid:
1) Fentanyl
2) Alfentanil
3) Buprenorphine
4) Sufentanil
Sufentanil is the most potent opioid, being 500-1,000 times more potent than morphine.
What is the first step in the "Tell-Show-Do" technique for explaining a dental procedure to an anxious patient?
1) Show the patient what will happen
2) Describe the sensation the patient might feel
3) Tell the patient what you are going to do
4) Perform the procedure
The Tell-Show-Do technique involves explaining the procedure in simple terms, demonstrating it with a model or the patient's hand, and then performing the actual procedure.
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.
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.
What is the relationship between fluoride concentration and dental caries
resistance?
1) Low fluoride levels lead to greater resistance.
2) High fluoride levels lead to greater resistance.
3) There is no relationship between fluoride and caries resistance.
4) Fluoride levels do not affect caries resistance.
Higher fluoride levels can lead to the formation of fluorapatite, which is more resistant to acid attack than hydroxyapatite, thereby reducing the risk of dental caries.
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.
Which of the following is NOT a component of the "Five Senses" approach to managing dental anxiety?
1) Visual
2) Auditory
3) Olfactory
4) Gustatory
The "Five Senses" approach involves managing anxiety through visual, auditory, olfactory, and tactile stimuli, not gustatory stimuli, which relate to taste.
What is the cellularity of exocrine glands?
1) Multicellular
2) Unicellular
3) Both multicellular and unicellular
4) None of the above
Most exocrine glands in the human body are multicellular, with the exception of unicellular glands like goblet cells.
Disto buccal root of upper first molar is supplied by:
1) Buccal nerve
2) Middle superior alveolar nerve
3) Posterior superior alveolar nerve
4) Infra orbital nerve
The disto buccal root of the upper first molar is supplied by the posterior superior alveolar nerve.
The decreased CO2 concentration the airways causes 1. Dilation of airways 2. Constriction of airways 3. No effect on airway 4. Complete obliteration of airway.
Physiology Answer: 2The decreased CO2 concentration the airways causes Constriction of airways