Dentist Abroad
A diastema between two maxillary central permanent incisors could be associated
with the followings, EXCEPT
1) a mesiodens.
2) a congenital absence of permanent maxillary lateral incisors.
3) a large labial frenum.
4) adenomatoid odontogenetic tumour
Adenomatoid odontogenic tumors are generally not linked to diastemas; other options can contribute to spacing.
The cause of death with opioid intoxication is 1. respiratory depression 2. cardiac arrest 3. terminal convulsions 4. oxygen apnea
Pharmacology Answer: 1The cause of death with opioid intoxication is respiratory depression
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.
Hemorrhagic shock is a circulatory disturbance characterized by
1) increase in blood pressure.
2) alteration in circulating blood volume.
3) elevation of temperature.
4) decrease in amount of interstitial fluid
Hemorrhagic shock occurs due to significant blood loss, reducing effective circulation and oxygen transport.
Which type of neurons supply the masticatory muscles?
1) Slow conducting
2) Fast conducting
3) Both
4) None
The masticatory muscles are supplied by fast-conducting motor neurons, allowing swift and effective muscle contractions for functions like chewing.
If a cut is made below the cricoid cartilage, which structure might be injured?
1) Inferior laryngeal nerve
2) Recurrent laryngeal nerve
3) Superior laryngeal nerve
4) Both A and B
The recurrent laryngeal nerve runs below the cricoid cartilage and
supplies all the intrinsic laryngeal muscles except for the cricothyroid muscle,
which is supplied by the superior laryngeal nerve. Inferior laryngeal nerve (which supplies the cricothyroid muscle) Recurrent laryngeal nerve (which supplies all other intrinsic laryngeal
muscles except the cricothyroid muscle)
What does overtrituration of amalgam cause?
1) Porosities
2) Shrinkage on setting
3) Bonding failure
4) Increased strength
Overtrituration leads to excessive heat generation and contraction, resulting in shrinkage and compromised integrity of the amalgam restoration.
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.
The orthodontic correction of which of the following is most easily retained
1) Anterior cross bite
2) Crowding
3) Diastema
4) Spacing
SOLUTION The key to success is to use an appliance that is both comfortable, easily retained and predictable such as a simple Hawley retainer with recurve springs or a fixed labial-lingual appliance (including a vertical removable arch for ease of adjustment with a recurve spring to jump the cross-bite). Both of these appliances work by tipping the maxillary teeth forward so they are in a normal dental relationship to the mandibular teeth.
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.
Which of the following is a Beta-1 selective blocker ?
1) propranolol
2) nadolol
3) pindolol
4) betaxolol
Beta-1 selective blockers
These include atenolol and metoprolol (as well as betaxolol, bevantolol, and perhaps esmolol).
Non-selective beta blockers
propranolol
Supracrestal fibrotomy is done after correction of:
1) Crowding
2) Proclined incisors
3) Severely rotated teeth
4) Space closure
Solution Circumferential supracrestal fibrotomy (CSF) eliminates the pull of the stretched supracrestal gingival fibres which are the major cause of orthodontic relapse.
Following drug interact with cefotaxime?
1) Digoxin
2) Paracetamol
3) Loop diuretics
4) Nifedipine
Nephrotoxicity of cephalosporins is accentuated by concurrent administration of loop diuretics.
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.
Angular cheilitis is most commonly associated with which condition in complete denture wearers?
A. Candidiasis
B. Nutritional deficiencies
C. Overextended flanges
D. Incorrect occlusion
Angular cheilitis, which appears as fissures or sores at the corners of the mouth, is often caused by overextended denture flanges that create friction and moisture retention, leading to secondary infections.
Serial extraction:
1) Involves the 4 permanent first premolars.
2) Is the treatment for Class II skeletal malocclusions with severe space shortage.
3) Is commenced with bilateral expansion of the arches.
4) Is best suited to Class I dental and skeletal malocclusions with minimal space shortage.
Oral Surgery Answer: 1Serial extraction primarily targets first premolars to address severe space discrepancies, particularly in patients with crowding in Class I dental relationships.
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 effect on local anesthetic when used with sodium
bicarbonate ?
1 Increases speed and quality of anaestheisa
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 nerve supply of the pulp is composed of which type of nerve fibers?
1) Afferent & sympathetic
2) Efferent & sensory
3) Motor & autonomic
4) Motor & sensory
ADC Test Answer: 1
The pulp receives sensory (afferent) fibers, mainly from the trigeminal nerve, and sympathetic fibers that regulate blood flow.
Which of the following is considered a biological hazard in a dental practice? 1) Chemical spills 2) Noise from dental equipment 3) Bloodborne pathogens 4) Ergonomic strain
Occupational Hazards Answer: 3Biological hazards include exposure to infectious agents such as bloodborne pathogens (e.g., HIV, Hepatitis B and 3) that can pose risks to dental professionals.
Which anesthetic method is generally avoided in patients with certain neurological conditions?
1) Topical anesthetic
2) Inhalation sedation
3) Intravenous sedation
4) Local anesthetic
Intravenous sedation can present risks for patients with neurological conditions due to the potential for respiratory depression and impaired airway reflexes.
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.
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.
The most pronounced effect on the oral microflora of a reduction in rate of salivary flow is a 1. significant increase in number of oral bacteria 2. shift towards a more acidogenic microflora 3 significant decrease in number of oral bacteria 4 shift towards a more aerobic micro flora
Microbiology Answer: 2The most pronounced effect on the oral microflora of a reduction in rate of salivary flow is a shift towards a more acidogenic microflora
Modern dental noble metal casting alloys generally have equiaxed fine grain structures because of the incorporation of small amounts of
1) Chromium
2) Indium
3) Iridium
4) Palladium
The term equiaxed refers to the fact that three dimensions of each grain are similar.
crack propagation.
Addition of about 1 wt% of ruthenium, Iridium or rhenium as grain refiners makes modern dental noble metal casting alloys as equiaxed microstructures.
What should a dentist do if a patient is unable to provide informed consent
due to language barriers?
1) Proceed with treatment without consent
2) Use a family member as an interpreter
3) Use a professional interpreter or translation services
4) Rely on non-verbal cues from the patient
Dentists should use professional interpreters or translation services to communicate effectively with patients who do not speak the same language. This ensures accurate information is conveyed and that the patient fully understands their treatment options and can make informed decisions.
Which antibiotic causes abdominal cramps in therapeutic doses?
1) Amoxicillin
2) Clindamycin
3) Metronidazole
4) Tetracycline
Clindamycin is known to cause gastrointestinal side effects, including abdominal cramps, even at therapeutic doses.
Which of the following types of publications is the most reliable source for making evidence-based clinical decisions?
1) Dental manufacturer’s product information.
2) Professional association journals.
3) Systematic review articles from dental research journals.
4) Case reports in dental journals.
Scientific Literature Answer: 3Systematic reviews provide high-quality evidence by summarizing and analyzing multiple studies, offering a reliable foundation for clinical decision-making.
What is the best approach regarding sedation for pregnant women?
1) Mandatory sedation
2) Always use benzodiazepines
3) Best to avoid sedation
4) Only use nitrous oxide
The use of sedation, particularly benzodiazepines, during pregnancy carries risks that could harm the fetus.
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.
Trichloroacetic acid, a strong acid, has been used by dentists for chemical cautery of hypertrophic tissue and aphthous ulcers; its mechanism of action is:
1) Thermodynamic action
2) Activation of tissue enzymes
3) Osmotic pressure
4) Protein precipitation
ADC Test Answer: 4
Trichloroacetic acid works by precipitating proteins, which helps in cauterizing tissues and managing lesions.
Glucose can be synthesised from Glyerol, Acetoacetate, Lactic acid
The increased venous return to the heart causes: 1. End diastolic volume increase 2. End systolic volume decrease 3. Decrease stroke volume 4. Decreased isovolumetric ventricular contraction.
Physiology Answer: 1The increased venous return to the heart causes End diastolic volume increase
The formation of oxyhemoglobin is influenced by
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.
What is the role of SmartConsent technology in informed consent?
1) To
replace the need for consent
2) To standardize and communicate information effectively to patients
3) To eliminate the need for written consent
4) To provide legal protection for healthcare providers
SmartConsent aims to improve how information about risks and benefits is communicated to patients.
Penicillins:
1) Are the antibiotic of choice for anaerobic infections
2) Are bacteriostatic
3) Are protagonistic to tetracycline
4) Interfere with bacterial cell wall synthesis
The penicillins all act by interfering with bacterial cell wall synthesis, by inhibiting cross-linking of the mucopeptides in the cell wall and as such are bacteriocidal.
In patients with disseminated intravascular coagulation (DIC), which laboratory finding is typically present?
1) Hypofibrinogenemia
2) High platelet count
3) Decreased D-dimer levels
4) Prolonged PT/APTT
In DIC, both prothrombin time (PT) and activated partial thromboplastin time (APTT) are usually prolonged due to extensive clotting factor consumption.
The chemical nature of bacterial exotoxins is, a lipopolysaccharide complex
What is the difference between implied and verbal consent?
1) Implied consent requires no action from the patient, while verbal consent
involves the patient stating their agreement
2) Verbal consent is documented, while implied consent is not
3) Implied consent is for diagnostic procedures, and verbal consent is for
treatments
4) There is no difference between implied and verbal consent
Implied consent is inferred from the patient's passive cooperation, while verbal consent requires the patient to explicitly state their agreement to the proposed treatment.
Which dental material is known for its use as a direct restorative material?
1) Resin composite
2) Glass ionomer cement
3) Amalgam
4) All of the above
Resin composites, glass ionomer cements, and amalgam are all commonly used direct restorative materials in dentistry.
What is the appropriate dosage of epinephrine for an 8-year-old child experiencing anaphylaxis?
1) 0.15 ml of 1:1000
2) 0.3 ml of 1:1000
3) 0.5 ml of 1:1000
4) 0.05 ml of 1:1000
For children experiencing anaphylactic shock, the common practice is to administer 0.15 ml of 1:1000 epinephrine, dependent on their weight and severity of symptoms.
Which type of defect is most prevalent?
1) 1-wall defect
2) 2-wall defect
3) 3-wall defect
4) None of the above
One-wall defects, also known as infrabony defects, are indeed the most common type of osseous defects found in periodontal disease. These defects are characterized by the loss of alveolar bone on one side of the tooth root, leaving a bony depression or "cup" that can harbor plaque and bacteria, contributing to the progression of periodontal disease.
Periapical Abscess is a collection of pus at the root of a tooth. It's usually
caused by which of the following?
1) Inflammation
2) Tooth decay
3) Infection
4) Dead tissues
Periapical abscess is a collection of pus that occurs at the root of a tooth. It is usually caused by infection. Infection can occur when bacteria enter the tooth through a cavity or a crack, leading to inflammation and the formation of pus. Tooth decay and dead tissues can contribute to the development of an infection, but the primary cause is the presence of bacteria that trigger the inflammatory response and the subsequent formation of pus.
Protamine sulphate reverses the effect of
1) Meperidine
2) Atropine
3) Hepartn
4) Strychnine.
Heparin-associated thrombocytopenia may be associated with irreversible aggregation of platelets and treating venous thromboembolism.
What is the typical healing time for a simple extraction of a tooth?
1) 3-5 days
2) 1-2 weeks
3) 2-4 weeks
4) 4-6 weeks
Healing after a simple tooth extraction typically occurs within 1 to 2 weeks, although complete healing may take longer.
Slowest induction and recovery is with:
1) Halothane
2) Isoflurane
3) Methoxyflurane
4) Desflurane
Methoxyflurane has the highest blood gas partition coefficient (15), resulting in the slowest induction and recovery.
Which type of cells is seen in the late stage of chronic periodontitis?
1) Basophils
2) Eosinophils
3) Lymphocytes
4) Neutrophils
5) Macrophages
In the late stages of chronic periodontitis, macrophages are more prevalent, reflecting ongoing inflammation and tissue destruction.
What is the 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 is the primary goal of a dentist when treating a patient with a history of abuse or neglect?
1) To provide comprehensive dental care
2) To determine the cause of the patient's injuries
3) To provide psychological support and referrals
4) To gather evidence for legal proceedings
The primary goal of a dentist is to provide the best possible dental treatment to their patients, while also being sensitive to their history.
What is the primary purpose of documenting suspected abuse or neglect in a dental practice?
1) To confront the abuser
2) To provide evidence for legal proceedings
3) To avoid liability
4) To inform other dental professionals
Documentation serves as a crucial record of observations and actions taken, which can be important in legal contexts.
All are fluorinated anaesthetics except:
- Methoxyflurane
- Halothane
- Sevoflurane
- Isoflurane
Halothane does not undergo desfluorination under normal conditions (defluorinated only under anaerobic conditions).
What is the most appropriate action for a dentist to take if they suspect a
patient with a disability is being abused or neglected?
1) Report the suspicion to the patient's caregiver
2) Report the suspicion to the patient's guardian
3) Report the suspicion to the authorities
4) Ignore the suspicion due to the patient's disability
Dentists are mandated reporters for all forms of suspected abuse or
neglect, including cases involving patients with disabilities. The most
appropriate action is to report the suspicion to the authorities, such as Adult
Protective Services or Child Protective Services, depending on the patient's age
and the nature of the suspicion.
What is the most common type of impaction of the third molar?
1) Mesial impaction
2) Vertical impaction
3) Horizontal impaction
4) Distoangular impaction
Mesial impaction is when the third molar is angulated towards the mesial (second molar) and is the most common type of impaction.
The parasympathetic fibers to pterygopalatine ganglion come from greater petrosal nerve
When calcospherites fail to fuse during calcification of dentin matrix then
1 Interglobular dentin is formed
2 Dead tracts are found in formed dentin
3 Irregular dentin results
4 None
Interglobular Dentin:
Sometimes, mineralization of dentin begins in small globular areas that fail to coalesce into a homogenous mass.
These zones are known as globular dentin or interglobular spaces. Thus, demonstrating defect of mineralization and not of matrix formation, the dentinal tubules pass uninterruptedly through interglobular dentin.
The mucosa of the hard palate is?
1) Non-keratinised and lacks submucosa and minor salivary glands.
2) Non-keratinised and has submucosa and minor salivary glands posteromedially
3) Keratinised and lacks submucosa and minor salivary glands.
4) Keratinised and has submucosa and minor salivary glands posterolaterally
The correct answer is "keratinised and has submucosa and minor salivary glands posterolaterally." The hard palate is the bony structure that forms the roof of the mouth.
In patients with cerebral palsy, which position is often recommended for dental procedures?
1) Supine
2) Prone
3) Elevated semi-upright
4) Lateral recumbent
An elevated semi-upright position can enhance comfort and respiratory efficiency for patients with cerebral palsy during dental treatments.
Fastest route of absorption of local anaesthetic is?
1) Intercostal
2) Epidural
3) Brachial
4) Caudal
The fastest route for absorption of LA is intercostal block, due to close location of blood vessel around the nerve, so that is why LA are rapidly taken by in intercostal block.
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 of the following is not recommended in the technique for curing light cured composites?
1) Holding the light tip 1 cm from the tooth
2) Wearing speacial glasses with orange filters
3) Using an exposure duration of 40 to 60 seconds
4) Placing the composite in increments of 1 to 2 mm
The distance between the tip of the curing light and the tooth is important, as the intensity of the light source is important.
The intensity of light is inverselyproportional to the distance from the source. As a general rule each increment should be at most 1.5 to 2 mm thick. This will ensure complete penetration of the light and maximum curing of thecomposite at the bottom most portion of the cavity preparation.
Creatine Phosphate is the major source of glucose for the whole body during starvation
Which of the following is not a part of behavioral science?:
1) Social Psychology
2) Economics
3) Sociology
4) Social Anthropology
Economics is not a part of behavioral science because it primarily focuses on
the production, distribution, and consumption of goods and services, as well as
the behavior of individuals and organizations in the market. Behavioral science,
on the other hand, is a multidisciplinary field that studies human behavior and
interactions, drawing from various disciplines such as psychology, sociology,
and social anthropology. While economics may incorporate some aspects of human
behavior, it is not considered a core component of behavioral science.
What is the first line of treatment for a patient with a lower lateral tooth extracted while the alveolus heals to cover the gap?
1) Conventional cantilever
2) Partial denture
3) Both
4) None
A partial denture is often the preferred option to replace missing teeth during the healing process, providing functional and aesthetic support.
What is the most effective way to manage dental anxiety in patients?
1) Sedation dentistry
2) Distraction techniques
3) Open communication
4) All of the above
Managing dental anxiety can be effectively achieved through a combination of sedation dentistry, distraction techniques, and open communication between the dentist and the patient to address concerns and fears.
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.
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.
What is a key benefit of using electronic dental records (EDR) over traditional paper records?
1) Increased storage space
2) Improved access and easy retrieval
3) More paperwork
4) Higher costs
EDR systems enhance the ability to access and retrieve patient information quickly and efficiently compared to paper records.
In a visual examination for caries, what change in the tooth surface texture
or color is a reversible sign of early enamel demineralization?
1) White spot
2) Brown spot
3) Black spot
4) Red spot
A white spot on the tooth surface indicates incipient caries, which is a reversible form of enamel demineralization. Brown or black spots are typically associated with more advanced stages of caries, while red spots are not a common sign of dental caries.
In orthodontic treatment, the forces applied should not exceed the ________________ in order to avoid injuries to the tissues.
1) Arterial blood pressure
2) Muscular forces of facial muscles
3) Masticatory retrusion
4) Capillary blood pressure
SOLUTION Optimum orthodontic force is one, which moves teeth most rapidly in the desired direction, with the least possible damage to tissue and with minimum patient discomfort. Oppenheim and Schwarz following extensive studies stated that the optimum force is equivalent to the capillary pulse pressure, which is 20-26 gm/sq.
From a clinical point of view, optimum orthodontic force has the following characteristics:
1) Products rapid tooth movement
2) Minimal patient discomfort
3) The lag phase of tooth movement is minimal
4) No marked mobility of the teeth being moved
From a histologic point of view the use of optimum orthodontic force has the following characteristics:
1) The vitality of the tooth and supporting periodontal ligament is maintained
2) Initiates maximum cellular response
3) Produces direct or frontal resorption
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.
What is the typical onset of pain for a dry socket?
1) Immediately post-extraction
2) 3-4 days post-extraction
3) 1 week post-extraction
4) 2 weeks post-extraction
Dry socket pain typically starts 3-4 days after tooth extraction due to clot breakdown and bone exposure.
After completion of root canal therapy on a maxillary first premolar with
moderate mesial and distal lesions and intact buccal and lingual surfaces, the
restoration of choice is a/an
1) MOD composite resin.
2) MOD onlay.
3) MOD pin retained amalgam.
4) MOD bonded amalgam.
An onlay provides superior protection and strength for teeth with compromised structure, especially on premolars.
Which of the following anaesthetic has beta blocker action:
1) Halothane
2) Isoflurane
3) Methoxyflurane
4) Nitrous oxide
Halothane produces beta-blocker-like action, causing direct depression of the myocardium and bradycardia.
What type of reaction does an amalgam restoration cause?
1) Type I hypersensitivity
2) Type II hypersensitivity
3) Type IV hypersensitivity
4) Anaphylactic reaction
Amalgam restorations can lead to type IV hypersensitivity reactions, which are delayed and mediated by T lymphocytes rather than antibodies.
White coat hypertension refers to: 1) Low blood pressure when seeing a doctor 2) Elevated blood pressure only in a medical setting 3) Consistently high blood pressure at all times 4) Normal blood pressure at all times
Pathology and Medicine Answer: 2White coat hypertension occurs when blood pressure is elevated only in the presence of healthcare workers.
What is the primary cause of enamel hypoplasia?
1) Genetic factors
2) Nutritional deficiencies
3) Environmental factors
4) All of the above
Enamel hypoplasia can result from a combination of genetic, nutritional, and environmental factors affecting tooth development.
Rounding or beveling of the axiopulpal line angle causes:
1) Stress distribution among dentin.
2) Stress distribution among amalgam.
3) Stress distribution among dentine and amalgam.
4) None.
ADC Test Answer: 1
Rounding or beveling helps to minimize stress concentrations in dental restorations, leading to improved stress distribution within the dentin, thereby enhancing the longevity of the restoration.
In what area of the root are periodontal ligament fibers thinner?
1) Apical third
2) Middle third
3) Cervical third
4) Entire root
Periodontal ligament fibers are generally thinner in the middle third of the root compared to the apical and cervical thirds, where they are typically thicker for better support.
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.
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.
Which blood vessels have softer walls?
1) Arteries
2) Veins
3) Arterioles
4) Capillaries
Veins have thinner walls and are more compliant than arteries, allowing them to accommodate varying volumes of blood.
What is a common oral manifestation of bulimia nervosa?
1) Xerostomia
2) Erosion of dental enamel
3) Oral thrush
4) Gingival hyperplasia
The exposure of teeth to stomach acids due to vomiting can lead to significant enamel erosion.
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).
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 CQC's role in monitoring dental record keeping?
- It sets the standards for record keeping in dentistry
- It checks for compliance with GDC guidelines
- It enforces data protection laws
- It conducts audits of dental practices
The Care Quality Commission (CQ3) is responsible for inspecting and auditing healthcare providers, including dental practices, to ensure they meet the fundamental standards of care, which includes good record keeping.
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.
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.
What should be done with consent forms in dental records?
1) They should be discarded after treatment
2) They should be signed and stored securely
3) They should be kept in a separate financial record
4) They do not need to be documented
Consent forms must be properly signed and retained as part of the patient's clinical record to ensure legal compliance.
What is the ideal angle for subgingival curettage with universal curettes?
1) 45 degrees
2) 60 degrees
3) 70 degrees
4) 90 degrees
A 45-degree angle is optimal for subgingival curettage, allowing effective scaling while preserving soft tissue.
Which of the following is a psychologically acceptable method for bone removal during an extraction?
1) High-speed handpiece and bur technique
2) Chisel and mallet technique
3) Laser surgery
4) All of the above
The high-speed handpiece and bur technique is generally more accepted by patients due to its precision and controlled removal of bone.
Impressions taken with which of the following materials are subject to distortion as a result of water sorption? 1. silicone rubber 2. polysulflde polymers 3. zinc oxide-eugenol-paste 4. polyether
Dental Material Answer: 4polyether materials are subject to distortion as a result of water sorption
Which 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.
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.
Thymol is preservative used for:
1) Halothane
2) Isoflurane
3) Desflurane
4) Enflurane
Halothane is stored in amber-colored bottles and contains thymol 0.01% as a preservative to prevent decomposition by light.
What is the normal pH range for venous blood?
1) 7.35-7.45
2) 7.25-7.35
3) 7.45-7.55
4) 7.40-7.50
Venous blood has a pH range of 7.35 to 7.45, which is essential for maintaining various biochemical processes in the body.
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.
What is the recommended approach to treating an acute dental infection in an
elderly patient?
1) Antibiotic therapy
2) Drainage of the abscess
3) Extraction of the infected tooth
4) Immediate root canal therapy
Initially, the primary goal is to drain the infection and alleviate pain before considering further treatment options like antibiotics or tooth preservation procedures
What type of rest is usually found on the lingual surface of a maxillary canine?
1) Incisal rest
2) Occlusal rest
3) Cingulum rest
4) Auxiliary rest
A cingulum rest is located on the lingual surface of teeth, often seen with maxillary canines.
What is the most commonly used topical anesthetic in dentistry?
1) Lidocaine
2) Benzocaine
3) Articaine
4) Procaine
Benzocaine is frequently used as a topical anesthetic in dentistry due to its effectiveness and rapid onset of action.
What is the most common finding after a dental complaint in young children?
1) Acute periodontal abscess.
2) Chronic periodontal abscess.
3) Apical abscess.
4) Chronic alveolar abscess.
ADC Test Answer: 3
Young children are more prone to developing apical abscesses due to their immature immune systems and the prevalence of dental caries.
What does the term "material risks" refer to in the context of informed
consent?
1) The cost of the treatment
2) The most common risks associated with the procedure
3) The most serious risks associated with the procedure
4) The risks that the patient is most concerned about
Material risks are significant risks that the patient should be
informed about, as they are most relevant to the decision-making process.
What is the most likely cause for the failure of a long-standing post-crown?
1) The post was too narrow
2) The post was too short
3) Failing root canal treatment
4) Presence of a vertical root fracture
Vertical root fractures often lead to the failure of a post-crown, especially if there are no other evident issues like caries or post malposition.
What is the significance of the critical pH in dental caries progression?
1) It is the pH at which bacteria can survive in the oral cavity.
2) It is the pH at which hydroxyapatite begins to dissolve.
3) It is the pH at which saliva stops protecting the tooth.
4) It is the pH at which fluoride becomes ineffective.
The critical pH is the point at which hydroxyapatite dissolves, marking the onset of demineralization and the potential for caries development.
What does the acronym "CQC" stand for in the context of dental record keeping?
1) Care Quality Commission
2) Clinical Quality Control
3) Comprehensive Quality Care
4) Centralized Quality Compliance
The Care Quality Commission (CQC) is responsible for regulating health and social care services in England, including dental practices.
In a patient with thyroid surgery, the block to be given is:
1) Stellate ganglion
2) Upper cervical ganglion
3) Dorsal sympathetic ganglion
4) Any of the above
Local Anesthesia Answer: 2
Upper cervical ganglion Cervical plexus block is most commonly given for carotid endarterectomy but thyroidectomy and tracheostomy can be done under bilateral cervical plexus block.
A removable partial denture rest should be placed on the lingual surface of a canine rather than on the incisal surface because:
1) Less leverage is exerted against the tooth by the rest.
2) The enamel is thicker on the lingual surface.
3) Visibility and access are better.
4) The cingulum of the canine provides a natural recess that does not need to be prepared.
FPD and RPD Answer: 1Lingual rests provide better mechanical advantage by minimizing leverage and torque forces on the abutment teeth, preserving their health and stability.
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.
Which of the following action is ascribed to delta type of opioid receptors?
1) Supraspinal analgesis
2) Respiratory depression
3) Euphoria
4) Reduced intestinal motility
Functions of delta type opioid receptors are: supraspinal analgesia
spinal analgesia
modulation of hormone and neurotransmitter release
According to Pell & Gregory classification, if the occlusal plane of the
impacted tooth is between the occlusal plane and the cervical line of the second
molar, the type of impaction is:
1) Class A
2) Class B
3) Class C
4) Class D
Pell & Gregory classification categorizes impactions based on the relationship of the impacted tooth to the second molar and the occlusal plane. Class B impaction indicates that the occlusal surface of the impacted tooth is located between the occlusal plane and the cervical line of the adjacent second molar, suggesting a moderate level of difficulty in extraction.
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 purpose of the principle of nonmaleficence in dental practice?
1) To ensure dentists do not cause harm to patients
2) To justify the use of painful procedures for therapeutic purposes
3) To require dentists to provide only the most expensive treatments
4) To prioritize the dentist's financial success
Nonmaleficence is the principle that guides healthcare professionals, including dentists, to avoid causing harm to patients. It is often paired with beneficence and requires that treatments and care are provided with the intent to do no harm.
What is the primary cause of non-carious cervical lesions?
1) Dental decay
2) Abfraction
3) Erosion
4) Both B and C
Non-carious cervical lesions can be caused by abfraction (stress-related loss of tooth structure) and erosion (chemical dissolution), both of which do not involve cariogenic bacteria.
A permanent tooth erupting in the mouth of an 11 years old child is most likely 1. maxillary lateral incisor 2. mandibular second bicuspid 3. maxillary third molar 4. rnandibular central incisor
Dental Anatomy Answer: 2A permanent tooth erupting in the mouth of an 11 years old child is most likely mandibular second bicuspid
Marginal leakage of a composite resin restoration will
1) not be detectable.
2) be minimized by use of a bonding agent.
3) decrease with longevity.
4) noneof above
Bonding agents create a seal between the composite resin and the tooth structure, reducing marginal gaps and leakage.
The nerve damaged if injured at the stylomastoid foramen is:
1) Glossopharyngeal nerve (CN 9)
2) Vestibulocochlear nerve (CN 8)
3) Facial nerve (CN 7)
4) Accessory nerve (CN 11)
The facial nerve exits the cranium through the stylomastoid foramen and is therefore at risk of damage at this location.
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.
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.
Infantile Osteopetrosis as a genetic condition can result into the following
options except?
1) Fractures
2) Hearing loss
3) Vision problems
4) Peeked nose
Infantile Osteopetrosis is a genetic condition that causes abnormal bone growth and density. It can lead to various complications such as fractures, hearing loss, and vision problems. However, a "peeked nose" is not a known symptom or complication of this condition. Therefore, the correct answer is "Peeked nose" as it is not associated with Infantile Osteopetrosis.
Approximately 3 hours following a well-balanced meal, blood levels of which of the following are elevated?
1) Fatty acids
2) Glucagon
3) Glycerol
4) Chylomicrons
Following digestion, the products of digestion enter the bloodstream.
These include glucose, amino acids, triacylglycerides packaged into chylomicrons from the intestine, and very low density lipoproteins from the liver.
The hormone of anabolism, insulin, is also elevated because of the signaling of the glucose and amino acids in the blood, which allows release of insulin from the β-cells of the pancreas.
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.
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.
The bacterial population in the gingival sulcus or the pocket that influences the course of periodontal disease has been found to involve 1 bacteria indigenous to the oral cavity 2. essentially a pure culture 3. essentially the same organisms found in the healthy sulcus 4. mostly aerobic bacteria
Microbiology Answer: 3The bacterial population in the gingival sulcus or the pocket that influences the course of periodontal disease has essentially the same organisms found in the healthy sulcus
What is the normal resting flow rate for saliva?
1) 0.1-0.3 ml/min
2) 0.1-0.6 ml/min
3) 0.5-1.0 ml/min
4) 1.0-2.0 ml/min
The normal resting saliva flow rate ranges from 0.1 to 0.6 ml/min, while stimulated saliva can increase to 1-2 ml/min.
What is the most common complication following third molar extraction?
1) Alveolar osteitis (dry socket)
2) Infection
3) Nerve injury
4) Trismus
Dry socket is a frequent complication due to the loss of the blood clot in the extraction site, leading to pain and discomfort.
Why do patients with heart failure bleed easily, and how should such bleeding be managed?
1) They have lower blood pressure
2) They are usually on blood thinners
3) They have a higher platelet count
4) They undergo frequent surgeries
Patients with heart failure often take anticoagulants like aspirin or warfarin to prevent thromboembolic events.
What is the recommended method for storing dental records?
- In a cardboard box in the office
- In a secure, climate-controlled room
- With the patient's financial records
- In an unlocked drawer
Dental records should be kept in a secure and controlled environment to prevent damage or unauthorized access.
Which of the following is/are associated with the presence of microorganisms in
the bloodstream?
1) Anachoresis.
2) Cavernous sinus thrombosis.
3) Bacteremia
4) All of the above.
All the options listed (Anachoresis, Cavernous sinus thrombosis, and Bacteremia) are associated with the presence of microorganisms in the bloodstream. Anachoresis refers to the process by which bacteria can localize in tissues, cavernous sinus thrombosis can occur due to the spread of infection from the oral cavity, and bacteremia is the presence of bacteria in the bloodstream itself.
What is the role of saliva in the oral cavity?
1) Lubrication of food
2) Protection against bacteria
3) pH buffering
4) All of the above
Saliva plays multiple roles in the oral cavity, including lubrication, antimicrobial action, and buffering of pH, which helps maintain oral health.
What is the primary feature of the double-blind method in clinical trials?
1) Both the patient and the researcher know the treatment being administered.
2) Only the patient knows the treatment being administered.
3) Neither the patient nor the researcher knows the treatment being administered.
4) The researcher knows the treatment, but the patient does not.
The double-blind method is designed to eliminate bias by ensuring that neither the participants nor the researchers know which treatment is being given, thus maintaining the integrity of the study.
Which of the following instruments is NOT typically used in a pulpotomy procedure?
1) Cotton pellets.
2) Spoon excavator.
3) Diamond bur.
4) Formocresol.
A diamond bur is not typically used in a pulpotomy procedure. A 330 bur is used to remove the roof of the pulp chamber.
Ferrite and austenite are soft and ductile
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
Tyrosine kinase inhibitors are useful in the management of ?
1) Acute myeloid leukemia
2) Small cell carcinoma of lung
3) Gastrointestinal stromal tumors
4) Neurofibromatosis
Tyrosine kinase inhibitors are used in the treatment of: Chronic myeloid leukemia
Acute lymphoblastic leukemia ( philadelphia chromosome positive cases )
Head and neck malignancies
Non small cell carcinoma lung
Gastrointestinal stromal tumours
Hepatocellular cancer
Renal cell carcinoma
Pancreatic cancer
Colorectal cancer
Which of the following is a well-recognized feature of capitation-based remuneration?
1) Encourages under-prescribing
2) Encourages high technical quality of work
3) Encourages high output of procedures
4) Encourages over-prescribing
Capitated payments encourage dentists to provide quality treatment since their income is not based on the number of procedures performed.
What happens if a dentist does not obtain informed consent before performing
a procedure?
1) The dentist can be charged with assault
2) The patient can refuse to pay for the treatment
3) The treatment is automatically considered successful
4) The dentist's insurance will cover any resulting complications
Performing a procedure without informed consent can be considered a violation of the patient's right to self-determination and may result in legal consequences, including charges of assault or battery.
What is the Angle classification of occlusion based upon?
Orthodontics Answer: 31. The position of the maxillary incisors relative to the mandibular incisors
2. The position of the maxillary incisors relative to the mandibular incisors
3. The position of the maxillary canines and first permanent molars relative to the mandibular canines and first permanent molars.
4. The position of the upper lip relative to the lower lip
The position of the maxillary canines and first permanent molars relative to the mandibular canines and first permanent molars
The fibres of Purkinje?
1. Are remains of embryonic cardiac muscle fibres
2. Are placed over the pericardium
3. Arise from the sinu-arterial noded a and b both
4. a and b both
These form specialized fibres of the heart and are supposed to be terminal filaments of bundle of His.
Which type of bridge is not ideal for posterior cantilever due to heavy
occlusal forces?
1) Single retainer cantilever
2) Multiple-splinted abutment
3) Cantilever with two abutment teeth
4) Fixed-fixed bridge
a single retainer cantilever is not ideal for posterior cantilever due to heavy occlusal forces, which can cause increased stress on the abutment tooth.
False statement regarding phenytoin is?
1) It is a teratogenic drug
2) Highly protein bound
3) Induces insulin secretion
4) Follows saturation kinetics
Phenytoin inhibits insulin secretion and causes hyperglycemia.
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.
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 of the following is a common challenge in providing dental care to patients with Alzheimer's disease?
1) Difficulty in understanding and following instructions
2) Increased tolerance for pain and discomfort
3) Enhanced manual dexterity for oral hygiene
4) Decreased sensitivity to taste and smell
Alzheimer's disease is characterized by cognitive impairment, which can make it challenging for patients to follow complex instructions or remember to perform oral hygiene tasks.
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.
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 is the modified Keyes-Jordan model of caries development?
1) A model that describes caries as a linear process of demineralization and
remineralization.
2) A model that emphasizes the role of sugar and bacteria in caries development.
3) A model that incorporates various modifying factors affecting caries
development.
4) A model that describes caries as solely a dietary issue.
The modified Keyes-Jordan model takes into account the multifactorial nature of caries, including host factors, microbial factors, and environmental factors.
When treating a patient with Down syndrome, which of the following is NOT a common oral health concern?
1) Increased risk of periodontal disease
2) Delayed tooth eruption
3) Large tongue size
4) High prevalence of dental caries
While individuals with Down syndrome may face challenges such as increased risk of periodontal disease and delayed tooth eruption, and often have a higher prevalence of dental caries, tongue size is generally not a concern specific to this condition.
Which antihypertensive agent is a direct renin inhibitor?
1) Aliskiren
2) Ramipril
3) Valsartan
4) Verapamil
Aliskiren directly inhibits renin, reducing the production of angiotensin I and lowering blood pressure.
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.
Extraction of a distoangular impaction of the mandibular third molar can cause:
1) Slippage in the lingual pouch
2) Fracture of the ramus of the mandible
3) Excessive hemorrhage
4) Dry socket
Distoangular impactions are particularly challenging due to their
position and the extensive bone removal required for extraction. This can weaken
the ramus of the mandible, making it more susceptible to fracture during the
extraction process. The risk of fracture is a significant concern for surgeons
when dealing with this type of impaction.
Which of the following is a critical component of a patient's medical history in dental records?
1) Patient's favorite color
2) List of systemic diseases
3) Patient's social media accounts
4) Financial status
A thorough medical history should include relevant health information, such as systemic diseases, to inform treatment decisions.
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.
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.
A 4 year old has generalized bone loss, mobile teeth and generalized calculus.
Which condition should NOT be included in the differential diagnosis?
1) Cyclic neutropenia
2) Papillon-Lefevre syndrome.
3) Chediak-Higashi syndrome.
4) Crouzon syndrome.
Crouzon syndrome is associated with craniofacial abnormalities, not generalized
bone loss or periodontal issues.
Crouzon syndrome is caused by a mutation in the FGFR2 gene, which is important for bone formation
Which filing system is commonly used for organizing paper dental records?
1) Vertical filing cabinets
2) Lateral filing cabinets
3) Both 1 and 2
4) None of the above
Both vertical and lateral filing cabinets can be used to organize paper dental records for easy retrieval.
What is the primary role of osteoclastic cells in the body?
1) Bone formation
2) Bone resorption
3) Collagen synthesis
4) Mineralization
Osteoclasts are specialized cells responsible for bone resorption, breaking down bone tissue and playing a crucial role in bone remodeling.
Which of the following is NOT an indication for sealants?
1) Questionable or confirmed enamel caries
2) Presence of deep pits/fissure
3) Proximal caries
4) Increased risk for caries
Sealants are indicated for questionable or confirmed enamel caries, presence of deep pits/fissure, and increased risk for caries. Proximal caries are not an indication for sealants.
What hormone increases blood glucose and decreases potassium?
1) Insulin
2) Cortisol
3) Glucagon
4) Adrenaline
Cortisol increases blood glucose levels by promoting gluconeogenesis and decreases serum potassium levels by enhancing renal excretion.
Which of the following is NOT a method for sterilizing dental instruments?
1) Autoclaving
2) Dry heat
3) Chemical vapor sterilization
4) Microwave sterilization
Microwave ovens are not designed for sterilization purposes and can
cause uneven heating and potential damage to instruments. Autoclaving, dry heat,
and chemical vapor sterilization are all valid methods for sterilizing dental
instruments.
Which of the following anaesthetic agent can be given by both intravenous and intramuscular routes:
1) Thiopentone
2) Propanidid
3) Ketamine
4) Fentanyl-droperidol
Ketamine can be given by iv, im, oral and intrathecal (spinal) routes.
What is the function of sodium meta bisulfite in a local anesthetic solution?
1) It acts as a vasoconstrictor.
2) It acts as an antiseptic.
3) It prevents oxidation of the anesthetic agent.
4) It reduces the acidity of the solution.
ADC Test Answer: 3
Sodium meta bisulfite is a reducing agent that helps maintain the potency of the local anesthetic by preventing its oxidation during storage.
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.
Epoxy resins are compatible with which of the following impression material :
1) Polysulphide impression material
2) Polyether impression material
3) Agar
4) Alginate
Epoxy resins
· Abrasion resistance is many times greater than gypsum
· More expensive
· Undergoes 0.1 – 0.2% shrinkage, thus their shrinkage is approximately equal to gypsum.
· Their detail reproduction is better.
· Hydrocolloids, polysulfides are not compatible with them.
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.
Which of the sugar is least cariogenic:
1) Sucrose
2)
Glucosebr
3)
Xylitol
4)
Lactose
Xylitol is the least cariogenic sugar because it cannot be metabolized by the bacteria in the mouth, unlike glucose, sucrose, and lactose. This means that xylitol does not contribute to tooth decay as much as the other sugars do.
What is the recommended position for a patient with a spinal cord injury during dental procedures to prevent autonomic dysreflexia?
1) Supine with the head elevated
2) Seated upright in a chair
3) Prone with the head elevated
4) Lateral recumbent with the affected side down
The supine position with the head elevated helps manage blood pressure and reduces the risk of autonomic dysreflexia, which is a concern for patients with spinal cord injuries.
Nitinol has the disadvantage of which of the following?
1) It cannot be formed into desired shapes
2) It lacks elastic properties
3) Its strength is not suited for orthodontic purposes
4) It lacks stiffness
Nitinol is a metal alloy – or mixture – of nickel and titanium.
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.
In a maxillofacial fracture, if intracranial pressure increases:
1) It is normal
2) Typically associated with tachycardia
3) Associated with blood pressure
4) Usually subsides spontaneously
ADC Test Answer: 3
Increased intracranial pressure can lead to alterations in cerebral blood flow and may cause changes in blood pressure.
What is the primary cause of a dry socket?
1) Infection
2) Clot dislodgment
3) Blood vessel damage
4) Bone necrosis
Dry socket occurs when the blood clot in the tooth socket is dislodged, exposing the bone and causing pain.
Patients with which condition may require premedication with antibiotics before dental procedures?
1) Asthma
2) Congenital heart defects
3) Alzheimer’s disease
4) Hypertension
Patients with certain congenital heart defects are at an increased risk of bacterial endocarditis and may require prophylactic antibiotics before dental treatment.
You suspect that your patient has an enlarged submandibular salivary gland. You expect the enlarged gland?
1) To be palpable intraorally
2) Only to be detectable by radiographical examination.
3) To be palpable both intra- and extraorally
4) To be palpable extraorally.
When a submandibular salivary gland is enlarged, it can be palpable both intraorally (inside the mouth) and extraorally (outside the mouth).
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 are the main challenges in the adoption of computerized dental records?
- Affordability and reliability of technology
- Lack of patient interest
- Limited space for computer equipment
- Complex regulations regarding color coding
The main barriers to adopting electronic records are the cost of the technology and ensuring it is reliable and user-friendly.
What is the percentage of edentulous patients in England and Scotland?
1) 10%
2) 25%
3) 50%
4) 64%
Approximately 64% of adults over 65 years are edentulous in the UK, reflecting the impact of dental health over time.
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.
Suppuration is mainly the result of the combined action of four factors; which of the following is not one of these factors?
1) Necrosis
2) Presence of lymphocytes
3) Collection of neutrophils
4) Accumulation of tissue fluid
ADC Test Answer: 3
While neutrophils are involved in the inflammatory response, they are not a direct factor in the process of suppuration, which primarily involves necrosis, tissue fluid accumulation, and autolysis.
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.
Which of the following cannot be used to slow down the setting of zinc oxide eugenol impression paste? 1. cooling mixing slab 2. adding a small amount of water 3. adding a small amount of glycerine 4. altering the amounts of the two pastes used
Dental Material Answer: 2a small amount of water acccelerates the setting of zinc oxide eugenol impression paste
Your employer is attempting to update office sterilization procedures; what would you recommend as the BEST method to verify that sterilization has occurred?
1) Use color change tape in each load and spore tests weekly
2) Use indicator strips in each load and color change tape on each package
3) Use indicator strips daily and spore tests weekly
4) Use color change tape daily and spore tests monthly
ADC Test Answer: 3
Color-change tape each load + weekly spore tests – Tape only shows the package was exposed to heat, not that sterilization was achieved. Indicator strips each load + color-change tape each package – No spore testing included → cannot verify sterilization. Indicator strips daily + spore tests weekly – Includes both chemical indicators and weekly spore tests → best match. Color-change tape daily + spore tests monthly – Monthly spore testing is inadequate.
What type of caries is characterized by a rapid progression and is often light-colored?
1) Chronic caries
2) Arrested caries
3) Acute/rampant caries
4) Incipient caries
Acute/rampant caries are immediately damaging, light-colored, and very infectious.
Which cement is more susceptible to failure if contaminated with saliva?
1) Resin cement
2) Glass ionomer cement
3) Zinc phosphate cement
4) Glass ionomer cement (GIC)
GIC is particularly sensitive to contamination with saliva, which can compromise its bonding ability.
At what stage of development does the parotid gland form in utero?
1) 20-30 days
2) 30-40 days
3) 40-44 days
4) 50-60 days
The parotid gland begins to develop around 40-44 days in utero, which is approximately 1.5 months.
A dental hygienist notices that a child has multiple untreated dental caries and appears malnourished. What should be the hygienist's first action?
1) Discuss with the child’s parents
2) Document the findings
3) Report the situation to child protective services
4) Schedule a follow-up appointment
As a mandated reporter, the hygienist must report suspected neglect to the appropriate authorities when a child’s well-being is at risk.
What type of respiratory protection is recommended for dental personnel
during aerosol-producing procedures?
1) N95 mask
2) Surgical mask
3) Powered air-purifying respirator (PAPR)
4) Full-face respirator
N95 masks are recommended for dental personnel during
aerosol-producing procedures as they provide a higher level of protection
against airborne particles compared to surgical masks. PAPRs and full-face
respirators may be used in certain situations, but N95 masks are sufficient for
most dental procedures.
The working time of zinc-phosphate cement:
1) Is shortened if moisture condenses on the mixing slab during the mixing process.
2) Is lengthened if the powder is mixed with the liquid as quickly as possible.
3) Is shortened if the mixing slab is cooled.
4) Is shortened by adding a small quantity of powder to the liquid a minute prior to start mixing.
FPD and RPD Answer: 1
Explanation: Moisture
condensation increases the reactivity of
zinc-phosphate cement, accelerating the setting
reaction and shortening the working time.
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 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.
Most potent inhaled anaesthetic is:
1) Halothane
2) Isoflurane
3) Sevoflurane
4) Desflurane
Halothane is the most potent inhalational agent with a MAC of 0.74%.
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.
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.
Which of the following can be an effective non-pharmacological technique to manage dental anxiety?
1) Immediate extraction
2) Encouraging distracted breathing
3) Ignoring the patient's fear
4) Avoiding all discussion about the procedure
Distracted breathing techniques can help patients manage anxiety by focusing their attention away from the stressor.
Which of these is the ideal appliance for correction of posterior cross bite due to digit sucking habit?
1) Tongue spikes
2) Hay rakes
3) Maxillary lingual arch with palatal crib
4) Quad helix
Classification of appliances for thumb-sucking
1.
a. Tongue spikes
b. Tongue guard
c. Spurs/rake
2 Fixed appliances
a. Quad helix
b. Hay rakes
c. Maxillary lingual arch with palatal crib
The ideal appliance to correct posterior cross-bite caused due to digit sucking is Quad Helix. It is a lingual arch which is adjustab and needs very little patient cooperation because it is fixed and is reliable and easy to use.
Hydralazine is an antihypertensive medication that functions as a:
1) Vasodilator
2) ACE inhibitor
3) Beta-blocker
4) Calcium channel blocker
Hydralazine is a direct vasodilator that helps reduce blood pressure by relaxing vascular smooth muscle.
Why is it important to conduct a medication review for geriatric patients
before dental treatment?
1) To identify affordable treatment options
2) To assess for drug interactions
3) To increase the number of visits
4) To speed up the treatment process
A medication review is essential to identify potential drug
interactions that could affect treatment outcomes and management strategies.
Iodine is a characteristic component of 1. Cysteine 2. Tyrosine 3. Thyroxine 4. Thiamin
Biochemistry Answer: 3odine is a characteristic component of Thyroxine
Common symptoms of hypertension include headaches, dizziness, and epistaxis (nosebleeds).
What is the correct order for the administration of nitrous oxide and oxygen to a patient?
1) Oxygen for 5 minutes, then nitrous oxide
2) Nitrous oxide for 5 minutes, then oxygen
3) Simultaneous administration of nitrous oxide and oxygen
4) Nitrous oxide for 5 minutes, followed by oxygen for 2 minutes
Nitrous oxide is always administered with oxygen to prevent hypoxia. The typical mixture is 30-50% nitrous oxide with 50-70% oxygen.
What is the best approach to take if a patient becomes overwhelmed during a procedure?
1) Continue without interruption
2) Stop the procedure, offer reassurance, and give the patient time to recover
3) Dismiss the patient’s feelings as unimportant
4) Ask another staff member to take over
Allowing the patient to regroup and addressing their feelings can help restore their composure and comfort.
What is the purpose of a patient registration form?
- To collect medical information
- To collect financial information
- To collect personal identification and contact information
- To gather insurance details
The patient registration form gathers essential details for identifying and contacting the patient, which is the foundation of the dental record.