Dentist Abroad
Digoxin:
1) clearance is by the liver
2) increases conduction of the AV node
3) decreases the force of myocardial contraction
4) may cause atrial tachycardia in overdosage
Digoxin is a positive inotrope, hence it increases the force of myocardial contraction and may be effective in heart failure.
Digoxin has a long half-life and is given once daily. It is cleared by the renal system and hence renal impairment requires the reduction of digoxin dose.
Arrhythmias, such as atrial tachycardia, may be a sign of digoxin toxicity.
Digoxin toxicity is enhanced if there are 67 electrolyte disturbances, especially hypokalaemia, hypomagnesaemia and hypercalcaemia.
A 16-year-old patient presents with bleeding gums and a bad smell. Which antibiotic should be prescribed?
1) Amoxicillin
2) Metronidazole
3) Clindamycin
4) Tetracycline
Metronidazole is effective against anaerobic bacteria, which are often involved in gingivitis and periodontitis, making it suitable for treating this patient's condition.
What concentration of sodium fluoride toothpaste is prescribed for patients aged 10 years and over with high caries risk?
1) 1,000 ppm
2) 2,800 ppm
3) 5,000 ppm
4) 10,000 ppm
Sodium fluoride toothpaste with 2,800 ppm is recommended for patients aged 10 years and above who have a high risk of caries.
Current evidence indicates that endorphins are 1. endogenous molecules having morphine like properties 2. receptors located in the periaqueductal grey area of the brain Which are sensitive to opiates 3. large polypeptides that regulate renal activity 4. central nervous system transmitters implicated in depressive psychoses
Pharmacology Answer: 1endorphins are endogenous molecules having morphine like properties
What condition is characterized by bilateral swellings not associated with food smell and associated with lymphadenopathy?
1) Sarcoidosis
2) Lymphoma
3) Tuberculosis
4) Infectious mononucleosis
Sarcoidosis can present with bilateral swellings and lymphadenopathy, often without any associated symptoms like food smell.
Rapid induction of anaesthesia occurs with which of the following
anaesthetic:
1) lsoflurane
2) Halothane
3) Desflurane
4) Sevoflurane
Desflurane has the lowest blood gas partition coefficient of 0.42, so has
fastest induction and recovery. Second fastest induction and recovery is with
cyclopropane with blood gas partition coefficient of 0.44.
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.
In providing treatment to older adults, which ethical principle is most
important?
1) Autonomy
2) Beneficence
3) Non-maleficence
4) Justice
Respecting an elderly patient's autonomy is crucial for ethical treatment, ensuring informed consent and patient-centered care.
Features of Vitamin C deficiency is due to defect of which enzyme 1. Lysyl hydroxylase 2. Lysyl oxidase 3. Procollagen peptidase 4. None of the above
Biochemistry Answer: 1Vitamin C deficiency is due to defect of Lysyl hydroxylase
What is the role of dental professionals in preventing abuse and neglect?
1) To provide legal advice to patients
2) To recognize signs and report suspicions
3) To conduct investigations into suspected cases
4) To provide therapy for victims
Dental professionals are trained to recognize signs of abuse and neglect and have a responsibility to report their suspicions to the appropriate authorities.
What is the primary ethical concern when a dentist has a conflict of interest?
1) Maintaining personal financial gains
2) Preserving professional reputation
3) Ensuring patient's welfare and trust
4) Fulfilling the duty to provide the best possible treatment
Ensuring patient's welfare and trust
Explanation: When a dentist has a conflict of interest, the primary ethical
concern is the potential for the conflict to compromise the patient's welfare
and trust. It is essential to manage conflicts of interest to ensure that the
dentist's decisions are based solely on the patient's best interests.
Which of the following is main cause of pain during pulpal injury progression
1) increased vascular permeability
2) decreased threshold of nerve fibers to pain
3) arteriolar dilatation
4) decrease pressure
Increased vascular permeability: When the dental pulp becomes injured
or inflamed, the blood vessels in the pulp dilate and become more permeable.
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.
Which of the following is NOT a type of dental charting?
- Periapical charting
- Panoramic charting
- Full mouth series charting
- Bitewing charting
Panoramic radiographs are not a type of charting.
What is the role of SmartConsent in informed consent?
1) It is a legal requirement for all medical procedures
2) It is a technology that standardizes and personalizes the consent process
3) It replaces the need for healthcare professionals to communicate with
patients
4) It is a form of anesthesia used in dental procedures
SmartConsent is a tool that helps healthcare providers communicate
complex medical information effectively to patients, aiding in the informed
consent process.
What is the primary goal of behavioral management techniques in treating anxious patients in dentistry?
1) To eliminate all signs of anxiety
2) To reduce the patient's anxiety to a level where dental treatment can be performed comfortably
3) To induce sleep during the procedure
4) To replace the patient's fear with positive emotions
The main objective of behavioral management is to create a relaxed and cooperative atmosphere, making it possible to conduct the necessary dental procedures without causing undue distress.
Nickel is a common alloying element that significantly increases the ductility of base metals, such as iron and steel.
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.
A 30 year old pregnant woman developes tuberculosis. Which of the following antitubercular drugs should not be used:
1) INH
2) Rifampicin
3) Streptomycin
4) Ethambutol
Streptomycin is contraindicated in pregnant women because of fetal ototoxicity.
What is the recommended fluoride concentration for community water fluoridation?
1) 0.5 ppm
2) 1.0 ppm
3) 1.5 ppm
4) 2.0 ppm
The recommended fluoride concentration for community water fluoridation is 1.0 ppm, which is effective in reducing dental caries.
What type of information is typically included in a patient's medical history in a dental record?
- Financial history
- Detailed dental insurance coverage
- List of systemic diseases, medications, allergies, and lifestyle habits
- Work history and education
A comprehensive medical history in a dental record should include relevant medical information that may affect the patient's oral health or treatment.
What is the first step in the process for immediate dentures?
1) Create a secondary impression
2) Record occlusion
3) Assess patient needs
4) Finish and polish
The first step involves a comprehensive assessment to understand the patient's requirements and expectations, followed by primary and secondary impressions.
The administration of barbiturates is contraindicated in :
1) Anxiety disorders
2) Acute intermittent prophyria
3) Kernicterus
4) Refractive status epilepticus
Acute intermittent prophyria (AIP) : Barbiturates exacerbate it by inducing microsomal enzymes and d amino levulinic acid synthetase and increasing prophyrin synthesis. Note: Contraindications of barbiturates : · Liver and kidney disease · Severe pulmonary insufficiency eg.
Most commonly used local anesthetic for rhinolaryngologic cases
1) Mepivacaine (Carbocaine)
2) Ropivacaine (Naropin)
3) Bupivacaine (Marcaine)
4) Cocaine
Cocaine is the most commonly used local anesthetic for rhinolaryngologic cases.
Which of the following has highest minimum alveolar concentration?
1) Halothane
2) Isoflurane
3) Methoxyflurane
4) Nitrous oxide
Nitrous oxide has the highest MAC value of 104 among all inhalational anaesthetics.
What does "informed refusal" refer to in the context of medical and dental
care?
1) When a patient refuses to sign an informed consent form
2) When a patient refuses to proceed with a recommended treatment after being
informed of its benefits and risks
3) When a patient refuses to provide personal health information
4) When a patient refuses to pay for the treatment
When a patient refuses to proceed with a recommended
treatment after being informed of its benefits and risks
Explanation: Informed refusal occurs when a patient has the capacity to make a
decision and has been provided with all necessary information but chooses not to
undergo the treatment.
The sounds "S," "Z," and "che" are produced when:
1) The teeth are widely apart
2) The teeth barely touch
3) The lips are tightly closed
4) The tongue is elevated
The sounds "S," "Z," and "che" are sibilant sounds, which are produced by forcing air through a narrow space between the tongue and the teeth. The teeth do not completely occlude (touch) during the articulation of these sounds. Instead, they are positioned in a way that allows a thin stream of air to flow, creating the characteristic hissing sound. This requires precise coordination between the tongue and the teeth, particularly the tongue and the alveolar ridge (the bony ridge behind the upper incisors).
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.
The primary mandibular central incisors usually erupt at 1. 6-8 months 2. 2 years 3. 10 - 13 months 4. 52 - 72 weeks
Dental Anatomy Answer: 1The primary mandibular central incisors usually erupt at 6-8 months
Which of the following is a common dental consideration in patients with autism?
1) Hyperactivity
2) Sensitivity to sensory stimuli
3) Aggressive behavior
4) Poor nutritional habits
Patients with autism often experience heightened sensitivity to sensory input, which can affect their comfort during dental procedures.
What is the appropriate management when treating patients on long-term corticosteroids for dental procedures?
1) Increase antibiotics
2) Increase corticosteroid dose
3) Avoid treatment
4) Normal treatment without modifications
Patients on long-term corticosteroids may have adrenal suppression, necessitating an increased dose of corticosteroids prior to dental treatment to prevent adrenal crisis.
Which of the following drugs have a narrow therapeutic index?
1) Lithium
2) Diazepam
3) Penicillin
4) Desipramine
Other drugs with narrow therapeutic index:
Digoxin Gentamicin Amphotericin B Levothyroxine Prazosin Theophylline Quinidine Warfarin Valproic acid
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 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.
Which one of the following is the major disadvantage of stone dies used for crown fabrication?
1) They lack accurate reproduction of surface details
2) Their overall dimensions are slightly smaller than the original impression
3) The strength of the stone
4) The hazard of aspiration of toxic materials during trimming of the dies
ADC Test Answer: 2
One of the notable disadvantages of some types of stone dies is that they can shrink upon setting or due to dehydration, leading to dimensions that are slightly smaller than the original impression, impacting the fit of the final restoration.
The extraction of a primary maxillary central incisor at the age of 6 years will
cause
1) loss of intercanine space.
2) increased intercanine space.
3) no change in intercanine space.
4) decreased overjet.
Primary incisors generally do not influence intercanine space, as it is
maintained by the canine teeth.
Which class of antihypertensive drugs includes drugs like Captopril and Enalapril?
1) Beta-blockers
2) ACE inhibitors
3) ARBs
4) Diuretics
ACE inhibitors like Captopril and Enalapril work by blocking the angiotensin-converting enzyme, reducing blood pressure.
Which muscles are primarily used in swallowing?
1) Masseter and temporalis
2) Genioglossus and palatoglossus
3) Buccinator and orbicularis oris
4) Sternocleidomastoid and trapezius
The genioglossus and palatoglossus muscles play significant roles in the swallowing process by controlling the position of the tongue and the soft palate.
What defines the action of zinc oxide eugenol in promoting healing?
1) Analgesic properties
2) Antibacterial activity
3) Tissue regeneration
4) Promotes rapid bone growth
Zinc oxide eugenol dressings are known for their properties that facilitate healing and promote rapid bone growth in post-extraction sites.
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 of the following is NOT a component of a comprehensive dental record?
1) Patient medical and dental history
2) Clinical examination findings
3) Treatment plans and consent forms
4) Social security number of the patient's next of kin
E. Financial information
While it's essential to have emergency contact information, including the next of kin, a social security number is not typically considered a necessary part of a comprehensive dental record. The primary components of a comprehensive dental record include the patient's personal and medical/dental history, clinical examination findings, diagnoses, treatment plans, consent forms, and radiographs/images.
For a patient with bulimia, what is the best treatment option?
1) Dental restoration
2) Dietary counseling
3) Referral to a psychologist
4) Material restoration
A multidisciplinary approach to bulimia involves addressing psychological factors; referral for psychiatric evaluation is crucial for effective management of this eating disorder.
Iodine is a characteristic component of 1. Cysteine 2. Tyrosine 3. Thyroxine 4. Thiamin
Biochemistry Answer: 3odine is a characteristic component of Thyroxine
Which of the following lesions cannot be classified as an intra-epithelial lesion?
1) Herpes simplex infections
2) Pemphigus vulgaris
3) Herpangina
4) Lichen planus
ADC Test Answer: 4
Lichen planus is characterized by a band-like infiltrate of lymphocytes at the epithelial-connective tissue interface, rather than being classified as an intra-epithelial lesion.
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.
Fusion Temperature of Impression Compound should occur: 1. Before mouth temperature 2.. At skin temperature 3. Ahove mouth temperature 4. At room temperature
Dental Material Answer: 3Fusion Temperature of Impression Compound should occur above mouth temperature
What drug is commonly associated with causing angioedema?
1) Prednisone
2) Ibuprofen
3) Ramipril
4) Metformin
Ramipril, an ACE inhibitor, is well known for causing angioedema as a side effect.
Which of the following is NOT a valid reason for a patient to refuse
informed consent?
1) Fear of pain
2) Lack of financial resources
3) Religious beliefs
4) Desire for a second opinion
While financial concerns may influence a patient's decision, they are not a valid reason for refusing informed consent. The other options (fear, religious beliefs, and desire for a second opinion) are all valid reasons for a patient to refuse or seek further information before consenting to treatment.
What is the effect on local anesthetic when used with sodium bicarbonate?
1) Increases speed and quality of anaesthesia
2) Decreases diffusion of the anaesthetic drug
3) Causes rapid elimination of the local anaesthetic
4) 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.
The location and extent of subgingival calculus is most accurately determined clinically by:
1) Radiopaque solution used in conjunction with radiographs.
2) Disclosing solution.
3) Probing with a fine instrument.
4) Visual inspection.
ADC Test Answer: 3
Probing with a fine instrument allows for the direct evaluation of the periodontal pockets and can provide information about the presence and extent of subgingival calculus.
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.
Untrue about desflurane is:
1) Rapid induction and recovery
2) High vapour pressure
3) Induction is very smooth
4) Does not produce fluoride
Desflurane is isoflurane product so has pungent odour, rapid induction and recovery, very high vapour pressure.
Which of the following is NOT a feature of trigeminal neuralgia?
1) Trigger zones
2) Night pain
3) Sudden onset of pain
4) Pain during chewing
Trigeminal neuralgia typically presents with sudden, severe facial pain triggered by specific stimuli, but it is not characterized by night pain.
What is the primary mechanism by which fluoride helps prevent dental caries?
1) It acts as an antibiotic.
2) It increases the pH of saliva.
3) It inhibits the demineralization of enamel.
4) It promotes remineralization of enamel.
ADC Test Answer: 3
Fluoride forms a protective layer on the tooth enamel that inhibits the activity of bacterial enzymes responsible for demineralization, thereby preventing dental caries.
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.
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.
A patient reveals to the dental hygienist that they are being physically abused at home. What should the hygienist do first?
1) Encourage the patient to confront the abuser
2) Report the abuse to the authorities
3) Offer to provide the patient with resources for help
4) Keep the information confidential
The hygienist is a mandated reporter and must report any disclosures of abuse to ensure the patient's safety.
Which of the following methods of instrument sterilization uses the lowest
temperature?
1) Steam autoclave.
2) Dry heat oven.
3) Ethylene oxide method
4) Glass bead sterilizer.
The ethylene oxide method of sterilization operates at lower temperatures compared to steam autoclaves and dry heat ovens. It is particularly useful for heat-sensitive instruments, as it can effectively sterilize at temperatures around 30-60°C, making it suitable for materials that cannot withstand higher temperatures.
Which of the following is a common form of neglect that can lead to significant dental problems?
1) Failure to provide dental care
2) Forcing a child to eat only sugary foods
3) Physical abuse to the head and neck region
4) Emotional abuse
Neglect often manifests as the failure to provide essential dental care, leading to severe dental problems.
Which of the following actions would be considered unethical in a dental practice?
1) Providing treatment based on the patient's informed consent
2) Discussing treatment options with the patient
3) Referring a patient to a specialist when necessary
4) Falsifying patient records to justify treatment
Ethics and Jurisprudence Answer: 4Falsifying records is unethical and illegal, as it compromises patient safety and trust, and violates legal standards of practice
Which type of fracture is typically associated with orbital emphysema?
1) Zygomatic
2) Nasal
3) Orbital
4) Le Fort
Orbital emphysema may occur due to fractures of the orbital bone that permit air entry into soft tissue, often resulting from trauma or surgical procedures.
What is the primary risk associated with the use of nitrous oxide in patients with cerebral palsy?
1) Increased risk of aspiration
2) Decreased muscle tone leading to airway obstruction
3) Enhanced sensitivity to the anesthetic effects
4) Increased risk of dental caries
Patients with cerebral palsy may have difficulty controlling their airway and swallowing reflexes, which can increase the risk of aspirating during the administration of nitrous oxide.
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.
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.
What is the primary role of saliva in oral health?
1) Aids in digestion
2) Provides antibacterial action
3) Helps in remineralization of teeth
4) All of the above
Saliva plays multiple roles in oral health, including aiding digestion, providing antibacterial action, and helping in the remineralization of teeth.
How much force is usually used to move a tooth with an orthodontic appliance?
- extremely light force, less than 1 gram
- moderate force, in the range of 50 to 150 grams
- very heavy force, greater than 500 grams
- whatever the patient can tolerate
moderate force, in the range of 50 to 150 grams
What is the purpose of the amber line in Winter's classification?
1) It shows the depth of the tooth below the alveolar crest
2) It indicates the amount of bone covering the tooth
3) It shows the path of eruption
4) It identifies the position of the tooth in the jaw
The amber line is drawn from the crest of interdental bone between the 1st and 2nd molars and extends posteriorly, showing how much bone covers the impacted tooth.
The first ossification center of the mandible in six weeks old human embryo is found in which of the following locations
1) Future coronoid process
2) Future condylar process
3) Future mental foramen
4) Future mandibular foramen
SOLUTION The mandible is ossified in the fibrous membrane covering the outer surfaces of Meckel’s cartilages. These cartilages form the cartilaginous bar of the mandibular arch, and are two in number, a right and a left. Ossification takes place in the membrane covering the outer surface of the ventral end of Meckel’s cartilage , and each half of the bone is formed from a single center which appears, near the mental foramen, about the sixth week of fetal life. By the tenth week the portion of Meckel’s cartilage which lies below and behind the incisor teeth is surrounded and invaded by the membrane bone
Not a contraindication for epinephrine use is
1) Heart disease.
2) Hypersensitivity to drug.
3) Hyperthyroidism.
4) Liver disease.
Adrenaline is contraindicated in hypertensive, hyperthyroid and angina patient. Hypersensitivity to drug is absolute contraindication to any drug.
How do rests help in force transmission?
1) By redirecting forces perpendicularly
2) By directing forces parallel to the long axis of the abutment tooth
3) By absorbing all the forces
4) By separating the teeth
Rests are designed to direct forces of mastication parallel to the long axis of the abutment to enhance support.
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.
What is the strength of adrenaline typically used in dental anesthesia?
1) 1:100
2) 1:1000
3) 1:2000
4) 1:5000
The standard concentration of adrenaline used in dental procedures is 1:1000, which helps to control bleeding and prolong the effect of local anesthetics.
What is the primary purpose of taking dental impressions?
1) To diagnose dental conditions
2) To create a mold for restorations or orthodontic appliances
3) To monitor teeth movement over time
4) To educate patients about oral hygiene
Dental impressions are taken to create a precise mold of a patient's teeth and surrounding structures. These molds are then used by dental laboratories to fabricate restorations like crowns, bridges, dentures, and orthodontic appliances that fit accurately in the patient's mouth. While impressions can indirectly help in diagnosis, their primary purpose is for the creation of these appliances.
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.
Which legislation governs the processing of personal data, including dental records, in the UK?
1) Health and Social Care Act 2008
2) Data Protection Act 2018
3) Access to Health Records Act 1990
4) NHS Records Management Code of Practice
The Data Protection Act 2018 supplements the GDPR and outlines the conditions for processing personal data, including health-related data.
Position of needle in relation to medial pterygoid during IANB?
1) Lateral and posterior.
2) Medial and anterior.
3) Lateral and anterior.
4) Medial and posterior.
ADC Test Answer: 1
During an Inferior Alveolar Nerve Block (IANB), the needle is positioned laterally and posteriorly to the medial pterygoid, which is critical for successful anesthesia of the mandibular teeth.
What defines the etiology of localized alveolar osteitis?
1) Bacterial infection
2) Oestrogen effects from medications
3) Excessive local fibrinolytic activity
4) Poor oral hygiene
Localized alveolar osteitis is often attributed to excessive fibrinolytic activity following trauma to the alveolar bone, rather than solely due to bacterial infections.
What is the typical presentation 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.
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 best description of the morphology of periodontal ligament fibers?
1) Elastic
2) Striated
3) Non-striated
4) Wavy
The fibers of the periodontal ligament exhibit a wavy morphology, which allows for flexibility and resilience to the stresses placed on them by occlusion.
X-ray films have an emulsion on one or both sides of a support material. The emulsion contains particles of:
1) Silver nitrate crystal
2) Metallic silver in gelatine
3) Silver bromide in gelatine
4) Silver nitrate in gelatine
ADC Test Answer: 3
The emulsion on x-ray films is primarily composed of silver bromide crystals suspended in gelatin, which is sensitive to radiation.
What is the main goal of "tell-tale" signs in behavior management?
1) To distract the patient from the procedure
2) To inform the patient of the upcoming sensation
3) To communicate with the patient non-verbally
4) To give the patient a sense of control over the situation
Tell-tale signs are used to prepare the patient for the sensations they will feel during the procedure, which can help reduce anxiety.
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.
An overjet of 8mm is usually associated with:
1) Angle Class I cuspid relationship.
2) Angle Class II cuspid relationship.
3) Angle Class III cuspid relationship.
4) Angle Class I molar relationship.
Orthodontics Answer: 2Excessive overjet is a hallmark of Angle Class II occlusion due to mandibular retrusion or maxillary protrusion, leading to an increased horizontal distance between the arches.
Shortest duration local anaesthetic is:
1) Chloroprocaine
2) Bupivacaine
3) Lignocaine
4) Procaine
Shortest duration local anaesthetic is chloroprocaine with duration of effect only 15-30 minutes.
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.
What are the cells in cementum that line its boundary with the periodontal ligament (PDL) with cytoplasmic processes directed towards cementum?
1) Cementoblasts
2) Osteoblasts
3) Fibroblasts
4) Odontoblasts
Cementoblasts are responsible for forming cementum and have processes that extend towards the PDL.
What is the most effective way to handle dental anxiety in special needs patients?
1) Sedation
2) Distraction techniques
3) Restraints
4) Forceful behavior
Distraction techniques, such as using music or visuals, can be very effective in managing anxiety without the risks associated with sedation or restraints.
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.
Dopamine is preferred in treatment of shock because of
1) Renal Vasodilatory effect
2) Increased Cardiac Output
3) Peripheral Vasoconstriction
4) Prolonged action
Dopamine as a first line of drug in patients with shock
Dopamine in low doses can dilate renal vasculature therefore maintaining glomerular filtration.
Activates adenylate cyclase - cAMP – relaxation of vascular smooth muscle
Stage of surgical anaesthesia is:
1) Stage I
2) Stage II
3) Stage III plane 2
4) Stage III plane 3
Stage III plane 3 is considered the stage of surgical anaesthesia because laryngeal reflex goes in this stage, and patient can be intubated.
What is the best method for managing dental emergencies in gerodontology?
1) Immediate referral to a specialist
2) In-office emergency care
3) Prescribing pain medication
4) Encouraging self-management
Rapid assessment and treatment in the dental office is typically the best approach for managing dental emergencies in elderly patients.
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 is required to increase efficiency and reduce fatigue of universal curettes?
1) Increased handle diameter
2) Ergonomic design
3) Sharpness of the blade
4) Length of the blade
The efficiency and comfort in use of universal curettes can be greatly enhanced with an ergonomic design that minimizes strain on the hand and wrist during procedures.
What is the most effective way to minimize the risk of sharps injuries in a dental practice? 1) Use of retractors during procedures 2) Proper disposal of needles and sharp instruments 3) Frequent handwashing 4) Wearing gloves at all times
Occupational Hazards Answer: 2Proper disposal in designated sharps containers is crucial in minimizing the risk of sharps injuries, which can lead to infections.
The obturating material of choice for primary teeth following complete pulpectomy is:
1) Zn phosphate cement and formocresol combination paste
2) Quick setting hydroxide cement
3) Zinc oxide and eugenol cement
4) Gutta-percha
ADC Test Answer: 3
Zinc oxide eugenol cement (ZOE) is preferred for obturation in primary teeth due to its good sealing properties and resorbability, which is important for the eventual eruption of the succedaneous permanent tooth.
Most potent inhaled anaesthetic is:
- Halothane
- Isoflurane
- Sevoflurane
- Desflurane
Among the inhalational agents used commonly, halothane is most potent (MAC 0.74%) while isoflurane and sevoflurane have moderate potency (1.15% and 2.0% respectively) and desflurane has low potency (MAC 6.0%).
What is the most common type of dental crown used in posterior teeth?
1) All-ceramic crown
2) Porcelain-fused-to-metal crown
3) Resin crown
4) Gold crown
Porcelain-fused-to-metal crowns are commonly used for posterior teeth due to their strength and aesthetic appearance.
Where are occlusal rests typically located?
1) On the incisal edge of teeth
2) On the lingual surface of teeth
3) On the occlusal surface of posterior teeth
4) On the mesial surface of teeth
Occlusal rests are seated on the occlusal surfaces of posterior teeth to provide stability.
Sterilization of carious dentin without pulp injury is assured by the
application of
1) phenol.
2) 70% ethyl alcohol.
3) chlorhexidine.
4) None of the above.
Sterilizing carious dentin while preserving pulp vitality is a delicate balance:
- Phenol: While it has antibacterial properties, it can be toxic to pulp tissue and is not recommended for use in vital pulp therapy.
- 70% ethyl alcohol: This concentration is effective for disinfection but can also cause dehydration and damage to pulp tissue.
- Chlor hexidine: Although it is an effective antimicrobial agent, it may not be suitable for direct application on carious dentin close to the pulp due to potential cytotoxic effects.
- Absolute alcohol: This can cause desiccation and damage to the pulp tissue, making it unsuitable for use in this context.
Three types of expansion that are possible in an investment are 1. thermal expansion, hygroscopic expansion, and setting expansion 2. thermal expansion, casting expansion, and metal expansion 3. casting expansion, hygroscopic expansion, and thermal expansion 4. thermal expansion, hygroscopic expansion, and metal expansion
Dental Material Answer: 1Types of expansion that are possible in an investment are thermal expansion, hygroscopic expansion, and setting expansion
Which of the following is NOT an ethical consideration in the management of a
patient with HIV/AIDS?
1) Confidentiality
2) Duty to treat
3) Patient autonomy
4) Patient's right to know their dentist's HIV status
The ethical considerations in managing patients with HIV/AIDS
include maintaining confidentiality, upholding the duty to treat, and respecting
patient autonomy. It is not an ethical requirement for dentists to disclose
their own HIV status to patients as long as they follow infection control
protocols and do not pose a risk of transmission.
What type of information is typically included in a patient's dental history?
- Only the patient's previous dental treatments
- The patient's general health and medical conditions
- The patient's financial status
- The patient's dental insurance details
Dental history includes an overview of the patient's overall health, which is crucial for planning safe and effective dental treatments.
All of the following drugs cross the placenta except?
1) Phenytoin
2) Diazepam
3) Morphine
4) Heparin
Heparin Heparin does not the cross the placenta. Hence its safe for use in pregnant patients who need anticoagulation.
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 most appropriate first-line investigation for suspected mandibular fractures? 1) MRI 2) Orthopantomogram 3) CT scan 4) Lateral cephalogram
Oral and Maxillofacial Surgery Answer: 2The orthopantomogram (OPG) is the first-line radiographic investigation for suspected mandibular fractures. It provides a panoramic view of the mandible, making it ideal for fracture assessment.
N-acetyl muramic is intermediate in the biosynthesis the cell wall
The penicillin with the best gram negative spectrum is ampicillin
Which fracture is most likely to lead to meningitis?
1) Le Fort 1
2) Le Fort 2
3) Le Fort 3
4) Zygomatic
Le Fort 3 fractures involve the craniofacial skeleton extensively and can disrupt the dura mater, increasing the risk of infection and potentially leading to meningitis.
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.
Carcinoma of the tongue has a predilection for which of the following sites?
1) Lateral border anteriorly
2) Anterior dorsal surface
3) Posterior dorsal surface
4) Lateral border posteriorly
ADC Test Answer: 4
The lateral border of the tongue, particularly posteriorly, is a common site for oral squamous cell carcinoma.
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.
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.
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.
During the extraction of a lower impacted right molar, bone is removed:
1) To expose maximum dimension of the tooth
2) Up to CE junction
3) Up to furcation area
4) Up to half of roots
The primary goal of bone removal during the extraction of an impacted molar is to expose the maximum dimensions of the tooth, allowing for easier access and removal. Adequate bone removal is essential to visualize the tooth and its roots fully, facilitating a successful extraction. Techniques such as high-speed handpiece and bur or chisel and mallet may be employed, with continuous irrigation to minimize bone necrosis.
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
Which behavior should a dentist encourage to help reduce anxiety in patients?
1) Withholding information about the procedure
2) Encouraging patients to express their fears
3) Telling jokes unrelated to the procedure
4) Dismissing the patient's concerns as minor
Allowing patients to voice their concerns creates a supportive environment and can help alleviate anxiety.
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.
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.
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.
Most bacterial endotoxins are composed of 1. pure carbohydrates 2. mucoprotein complexes 3. pure lipids 4. lipoprotein-polysaccharide complexes
Microbiology Answer: 4Most bacterial endotoxins are composed of lipoprotein-polysaccharide complexes
A dentist is using a Sof-Lex disc on an upper molar and lacks finger support. What is most likely to occur?
1) Gingival trauma
2) Mucosal burn
3) Mucosal trauma
4) Trauma to adjacent tooth
5) Gingival laceration
Lack of finger support while using a Sof-Lex disc can lead to improper control, resulting in potential trauma to the gingiva.
Platelets play an important role in hemostasis; which of the following describes this role?
1) They convert fibrinogen to fibrin
2) They agglutinate and plug small, ruptured vessels
3) They initiate fibrinolysis in thrombosis
4) They supply fibrin stabilizing factors
ADC Test Answer: 2
Platelets are crucial for forming a plug at the site of vessel injury, which is a key step in the hemostatic process.
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.
The rough surface of porcelain (porosity) is mainly the result of:
1) Sudden high temperature
2) Lack of compression
3) Inadequate cooling
4) Improper mixing
ADC Test Answer: 2
A rough surface can occur due to insufficient compression during the fabrication of porcelain, leading to porosity and a less smooth finish.
9 months of age, is the usual eruption time for 1. primary mandibular canines 2. primary maxillary canines 3. primary maxillary first molars 4. primary lower lateral incisors
Dental Anatomy Answer: 49 months of age, is the usual eruption time for primary lower lateral incis
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.
What percentage of children under 5 years old have caries?
1) 30%
2) 43%
3) 50%
4) 60%
According to health surveys, 43% of children aged 5 years in the UK have experienced dental caries.
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.
What is the most common histological finding in pemphigus vulgaris?
1) Acanthosis
2) Acantholysis
3) Hyperkeratosis
4) Basal cell carcinoma
Acantholysis is the primary histological feature of pemphigus vulgaris, leading to the formation of intraepithelial vesicles.
What is the significance of the Stephan Curve in dentistry?
1) It illustrates changes in oral pH after sugar exposure.
2) It describes the process of remineralization.
3) It indicates the types of bacteria present in the mouth.
4) It shows the composition of saliva.
The Stephan Curve describes how the pH of the oral cavity changes in response to sugar and acid exposure over time.
In which situation is it generally considered unethical for a dentist to
terminate a patient-provider relationship?
1) Non-compliance with treatment recommendations
2) Patient non-payment for services
3) Patient's lack of respect for the dentist or staff
4) Patient's refusal of a recommended treatment plan
While dentists have the right to set their own financial policies, terminating a relationship solely on the basis of non-payment may not be ethical, especially if it results in the patient being denied necessary care.
What is the primary advantage of computerized dental records in terms of patient care?
- Enhanced data security
- Improved legibility and reduced errors
- Reduced waiting times for appointments
- Increased marketing opportunities
Digital records can enhance patient care by reducing errors associated with handwritten notes and improving legibility, which facilitates better communication among dental professionals and safer treatment planning.
Analysis which is similar to Pont’s analysis is_______?
1) Linder Harth index
2) Korkhaus analysis
3) Bolton’s analysis
4) (A) and (B)
SOLUTION
· Pont’s in 1905 presented a system whereby the measurement of the four maxillary incisors automatically established the width of the arch in the premolar and molar region.
· Linder Harth index: This analysis is very similar to Pont’s analysis except that a new formula has been proposed to determine the calculated premolar and molar value.
· Korkhaus analysis: This analysis is also very similar to Pont’s analysis it makes use of Linder Harth’s formula to determine the ideal arch width in the premolar and molar region.
In addition this analysis utilizes a measurement made from the midpoint of the inter-premolar line to a point in between the two maxillary incisors.
· Bolton’s analysis: The Bolton’s analysis helps in determining disproportion in size between maxillary and mandibular teeth.
First local anaesthetic used was:
1) Lignocaine
2) Mepivacaine
3) Cocaine
4) Bupivacaine
Cocaine was the first local anaesthetic used by Carl Koller for anaesthetizing the cornea.
The action of Furosemide in acute pulmonary edema due acute left ventricular failure is by:
1) Pulmonary venodilation
2) Increasing urine formation
3) Decreases blood volume
4) All of the above
What is the best method to disinfect a dental bridge before sending it to the lab?
1) Soaking in bleach
2) Autoclaving
3) Using 70% isopropyl alcohol
4) Rinsing with water
70% isopropyl alcohol is effective for disinfecting dental appliances as it kills bacteria and viruses without damaging the material of the bridge.
The gas with greatest solubility in blood:
1) Nitrous oxide
2) Nitrogen
3) Oxygen
4) Hydrogen
Although the solubility of nitrous oxide in blood is less than other inhalational agents its solubility is 35 limes more than nitrogen and 15 times more than oxygen
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.
Ropivacaine is pharmacologically similar to:
1) Lignocaine
2) Mepivacaine
3) Etidocaine
4) Bupivacaine
Ropivacaine is newer drug which is pharmacologically similar to bupivacaine with less cardiotoxicity.
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.
What is the most abundant extracellular cation?
1) Calcium
2) Sodium
3) Potassium
4) Magnesium
Sodium is the main extracellular cation, playing a crucial role in maintaining fluid balance and nerve function.
In mixed dentition, which of the following may be considered as a self correcting problem with age?
1) Unilateral loss of primary canine
2) Lack of interdental spaces
3) A distal step
4) Open bite
SOLUTION The possibility that a distal step would become class II is very real, and this not self correcting problem.
Normal child will go through a transitory stage of mandibular incisor crowding at age 8 to 9 even if there will eventually be enough room to accommodate all the permanent teeth in good alignment. In other words, a period when the mandibular incisors are slightly crowded is a normal developmental stage.
Continued development of the arches improves the spacing situation, and by the time the canine teeth erupt, space is once again adequate.
Rapid induction of anaesthesia occurs with which of the following anaesthetic:
1) Isoflurane
2) Halothane
3) Desflurane
4) Sevoflurane
Desflurane has the lowest blood gas partition coefficient of 0.42, so it has the fastest induction and recovery. Second fastest induction and recovery is with cyclopropane with blood gas partition coefficient of 0.44.
A patient experiences pain and some gingival swelling in the anterior segment of the mandible. The mandibular lateral incisor has a shallow restoration, is
tender to percussion and gives a positive response to the electric pulp tester.
There is some mobility.
The most likely diagnosis is
1) acute apical abscess.
2) acute serous pulpitis.
3) lateral periodontal abscess.
4) acute suppurative pulpitis.
The symptoms described, including pain, gingival swelling, tenderness to percussion, and mobility of the tooth, suggest a lateral periodontal abscess. This condition often arises from periodontal disease or infection that affects the supporting structures of the tooth, leading to localized swelling and discomfort.
Local anaesthetic agent which has antimuscarinic action on heart muscle receptors is:
1) Procaine
2) Cocaine
3) Chloroprocaine
4) None of the above
Cocaine is a sympathomimetic (and thus antimuscarinic) local anaesthetic and thus adrenaline should not be added to it.
Which of the following local anaesthetic is more safe in surface and infiltrating anaesthesia:
1) Procaine
2) Cocaine
3) Lignocaine
4) Amethocaine
Lignocaine and prilocaine are considered as safe local anaesthetic and can be used for both topical and infiltration (local nerve blocks) anaesthesia.
Elevation of aldosterone, in blood results in High 'Na' and high 'K' in urine resulting in acidic urine and body alkalosis
What is the recommended technique for measuring blood pressure? 1) Patient should cross legs while seated 2) Patient should be seated for at least 5 minutes 3) Inflate the cuff quickly to 100 mmHg 4) Use a stethoscope on the neck artery
Pathology and Medicine Answer: 2For accurate blood pressure measurement, the patient should be seated comfortably for at least 5 minutes without crossing their legs.
What is the percentage of leukocytes required for extraction to be carried out?
1) 30 x 10^9
2) 50 x 10^9
3) 70 x 10^9
4) 100 x 10^9
A leukocyte count of 50 x 10^9 is often considered a threshold for safely performing dental extractions, as it indicates adequate immune function.
Aromatic amino acid is: 1. Tyrosine 2. Histidine 3. Arginine 4. Lysine
Biochemistry Answer: 1Tyrosine is Aromatic amino acid
Administration of which among the following anaesthetic agent results in a state of dissociative anaesthesia?
1) Ether
2) Propofol
3) Ketamine
4) Thiopentone sodium
Dissociative Anaesthesia refers to a characteristic state which results after an induction dose of Ketamine.
What is the role of the healthcare team in the informed consent process?
1) To convince the patient to accept the proposed treatment
2) To provide all necessary information and support the patient's decision
3) To make the treatment decision for the patient
4) To document the consent process
The healthcare team plays a crucial role in ensuring that the patient has a full understanding of their condition and the available treatment options, and in facilitating the patient's decision-making process.
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).
According to the specific plaque hypothesis, which of the following
bacteria is NOT associated with a specific type of dental caries?
1) Streptococcus mutans - enamel caries
2) Lactobacillus - dentinal caries
3) Actinomyces - root caries
4) Escherichia coli - enamel caries
The specific plaque hypothesis links Streptococcus mutans to enamel caries, Lactobacillus to dentinal caries, and Actinomyces to root caries. Escherichia coli is not mentioned as a main cause of dental caries in this context.
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 BMI (Body Mass Index) for, and how do we measure it?
1) To check if someone is overweight/obese/underweight; calculated as weight (kg) / height (m²)
2) To measure muscle mass; calculated as weight (kg) / height (m)
3) To assess hydration levels; calculated as weight (kg) / height (m)
4) To determine bone density; calculated as weight (kg) / height (m²)
BMI is a widely used indicator to classify individuals based on their weight relative to their height, helping to identify potential health risks associated with being underweight, normal weight, overweight, or obese.
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 the recommended retention period for dental records?
1) Indefinitely
2) Until the patient turns 18
3) For a certain period after the last treatment
4) Only as long as the patient is a current client
While specific retention periods may vary, dental records should generally be kept for a defined time after the last treatment to comply with legal and professional standards.
What is a common cause of facial angioedema?
1) Cough medicine
2) ACE inhibitors
3) Antihistamines
4) Statins
Facial angioedema is frequently precipitated by ACE inhibitors, which are known to induce this reaction in sensitive individuals.
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.
Which material is commonly used for direct pulp capping?
1) Glass ionomer
2) Composite resin
3) Calcium hydroxide
4) Amalgam
Calcium hydroxide is commonly used for direct pulp capping due to its ability to promote healing and dentin formation.
Where is bone lost most in periodontal disease?
1) Buccal surface
2) Lingual surface
3) Interdental (approximal) areas
4) Palatal surface
Bone loss in periodontal disease is most pronounced in the interdental areas, where plaque accumulation and inflammation are often greatest.
Premature exfoliation of primary mandibular canine is most often the sequelae of:
1) Caries
2) Trauma
3) Serial tooth extraction
4) Arch length inadequacy
SOLUTION The two major symptoms of severe crowding in the early mixed dentition are severe irregularity of the erupting permanent incisors and early loss of primary canines caused by eruption of the permanent lateral incisors.
After a definitive analysis of the profile and incisor position, these patients face the same decision as those with moderate crowding; whether to expand the arches or extract permanent teeth. In the presence of severe crowding, limited treatment of the problem will not be sufficient and permanent tooth extraction is most likely the best alternative.
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.
Austenite is an alloy of iron and carbon with the iron in
1) Alpha form
2) Beta form
3) Gamma form
4) None of the above
Austenite is an alloy of iron and carbon where the iron exists in the Gamma (γ) form.
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.
Which dimension in which arch is considered as a safety value for pubertal growth spurts?
1) Maxillary intercanine dimension
2) Mandibular intercanine dimension
3) Maxillary intermolar width
4) Mandibular intermolar width
SOLUTION Intercanine width serves as safety valve for dominant horizontal basal mandibular growth spurt.
Which is harder?
1) Amalgam.
2) Composite.
3) Type IV gold.
4) Glass ionomer.
ADC Test Answer: 3
Type IV gold is the hardest material compared to amalgam, composite, or glass ionomer.
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.
When is the MMR vaccine typically administered?
1) At birth and 6 months
2) At 1 year and again at 4 years
3) At 2 years and 5 years
4) At 6 months and 1 year
The MMR (measles, mumps, rubella) vaccine is usually given at 1 year of age and again at 4 years of age to ensure adequate immunity.
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.
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.
One of the side-effects of prilocaine is
1) Gastric bleeding
2) Porphyria
3) Photophobia
4) Methemoglobinemia
Methemoglobinemia is a condition in which the iron within hemoglobin is oxidized from the ferrous (Fe2+) state to the ferric (Fe3+) state, resulting in the inability to transport oxygen and carbon dioxide.
usually results from exposure to oxidizing substances (such as nitrates or nitrites, aniline dyes, or medications, including lidocaine, prilocaine, phenazopyridine hydrochloride (Pyridium], and others)
What do pulp tester readings signify?
1) Exaggerated response indicates irreversible pulpitis
2) No response indicates reversible pulpitis
3) Exaggerated response indicates reversible pulpitis
4) No response indicates healthy pulp
An exaggerated response to pulp testing typically indicates reversible pulpitis, while no response suggests irreversible pulpitis.
Which of the following is NOT a potential complication of poor oral health
in geriatric patients?
1) Pneumonia
4) Malnutrition
3) Dementia
4) Cardiovascular disease
While poor oral health is associated with an increased risk of
developing pneumonia and cardiovascular disease, it is not a direct cause of
dementi1) However, oral health can impact the quality of life and overall
systemic health.
The normal growing mandible exhibits which of the following characteristics?
1) Resorbs along the posterior rami.
2) Grows more vertically than horizontally.
3) Has completed 100% of its growth by age 13 in females.
4) Has latent post-pubertal growth potential.
Oral Embryology Answer: 4Mandibular growth continues into adulthood, with post-pubertal growth potential contributing to facial development and occlusal changes.
Which of the following is a crucial step in the sealant procedure?
1) Etch tooth for 15 seconds.
2) Apply optibond.
3) Apply ultraseal to central groove.
4) All of the above.
Etching the tooth for 15 seconds, applying optibond, and applying ultraseal to the central groove are all crucial steps in the sealant procedure.
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.
Which of the following is a key step in preparing a tooth for a stainless steel crown?
1) Reducing the occlusal surface.
2) Placing a rubber dam.
3) Applying a sealant.
4) Using a diamond bur to prepare the crown.
Before placing a stainless steel crown, the occlusal surface needs to be reduced to ensure proper fit and prevent interference with opposing teeth.
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.
Which of the following is an example of a legal requirement for dental records?
1) Using a specific color of ink to write in the chart
2) Storing patient records for at least 7 years after the patient's last appointment
3) Having a signed treatment consent form for every procedure
4) 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. This ensures that the information is available for any future reference or legal needs. The specific color of ink, use of digital or paper charts, and placement of identifiers are often practice standards rather than legal requirements.
Which of the following is a potential drawback of computerized dental records?
1) Increased efficiency
2) Data security concerns
3) Improved accessibility
4) Enhanced accuracy
While computerized records offer many benefits, they can also be vulnerable to cyber threats, necessitating robust security measures.
What does a rest seat refer to in RPD design?
1) A removable part of the denture
2) A prepared tooth surface for the rest to fit
3) A framework supporting teeth
4) A type of occlusal contact
A rest seat is the prepared surface on the tooth that accommodates the rest, providing a stable support.
Orthodontic tooth movement is inhibited by which of the following drugs
1) NSAIDS, such as Brufen
2) OPIOIDS, such as CORTISONE
3) Antibiotics such as tetracycline
4) Vasoconstrictors such as adrenaline
SOLUTION NSAIDS, i.e.
• Nimesulide does not interfere with PG production and so can be safely given during tooth movements.
The pterygomaxillary fissure is formed by the union of:
1) Sphenoid and maxilla
2) Sphenoid and zygoma
3) Maxilla and palatine
4) Inferior nasal concha and nasal septum
The pterygomaxillary fissure is located between the sphenoid and maxilla bones and serves as a passageway for various structures including blood vessels and nerves.
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 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 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.
Following a simple extraction of tooth 47, hemostasis was achieved Forty eight hours later, there is renewed
bleeding from the extraction site. Firm pressure fails to achieve hemostasis.
The most appropriate management is to
1) give local anesthetic, pack and suture.
2) apply firm pressure and ice for 10 minutes.
3) obtain an international normalized ratio (INR) and a complete blood count
4) give local anesthetic and electrocauterize the socket.
Postoperative bleeding may indicate a coagulopathy or systemic issue requiring investigation.
If a 4th root canal is present in a maxillary 1st molar, it will likely be located in which of the following roots?
1) Mesiolingual
2) Mesiobuccal
3) Distolingual
4) Distofacial
Well over 50% of maxillary 1st molars have two canals in the mesiobuccal root.
There are usually 3 roots and 4 canals in a maxillary 1st molar.
The fourth canal, the mesiolingual canal, is also referred to as: the accessory mesiobuccal canal, mesiocentric, mesiopalatal canal or MB2.
It is usually tough to find MB2 through clinical inspection and it is not obvious on a radiograph. A dentist should expect it is present before beginning a root canal on the first maxillary molar.
What is the most common location for oral squamous cell carcinoma?
1) Tongue
2) Buccal mucosa
3) Hard palate
4) Floor of the mouth
The lateral borders of the tongue are the most common sites for oral squamous cell carcinoma, often due to the exposure to carcinogenic agents and irritation.
What should a healthcare provider do if a patient refuses a recommended
treatment?
1) Ignore the refusal and proceed with treatment
2) Document the refusal and provide information on the consequences
3) Force the patient to comply
4) Refer the patient to another provider
It is important to document the patient's informed refusal and ensure they understand the potential consequences of not proceeding with the treatment.
For a tooth (84) with deeper caries, the recommended treatment would be:
1) Indirect pulp capping and restoration
2) Pulpotomy and restoration
3) Pulpectomy and restoration
4) Extraction
ADC Test Answer: 3
Due to the depth of decay, a pulpectomy is indicated to remove all affected pulp tissue and disinfect the canal.
During which phase does the formation of dentin primarily occur?
1) Bud stage
2) Cap stage
3) Bell stage
4) Maturation stage
The bell stage of tooth development is when the formation of dentin primarily occurs, along with enamel development.
What is the significance of obtaining informed consent and documenting it in a patient's record?
- It serves as legal proof of the treatment provided
- It is a requirement for insurance reimbursement
- It demonstrates that the patient has understood and agreed to the proposed treatment plan
- It is a mandatory step for all types of dental treatments
Informed consent is critical in dentistry as it ensures that patients are fully aware of their treatment options, the potential risks, and the benefits before making a decision.
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.
In Dicumarol poisoning which Vit K is used
1) Menadione
2) Menaqunone
3) Phytonadione
4) None of the above
To reverse the effect of overdose of oral anticoagulants:
Phytonadione (K1) is the preparation of choice, because it acts most rapidly, dose depends on the severity of upoprothrombinemia & bleeding.
What is one of the key principles of the "Four Cs" of record keeping?
1) Complicated
2) Clear
3) Costly
4) Confusing
Records should be presented in a clear and understandable manner to facilitate effective communication and decision-making.
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 legislation gives patients the right to access their dental records?
- General Data Protection Regulation (GDPR)
- Data Protection Act 2018
- Access to Health Records Act 1990
- All of the above
The Access to Health Records Act 1990 gives patients, or their representatives in the case of a deceased patient, the right to access their healthcare records, including dental records.