Dentist Abroad
What is the most appropriate treatment for an elderly patient with a loose
denture?
1) Relining the denture
2) Implant placement
3) Adhesive use
4) Removal of the denture
Relining the denture can help improve its fit and stability, making it more comfortable for the patient.
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.
What is the advantage of digital dental records over traditional paper records?
1) They are more environmentally friendly
2) They are easier to store and retrieve
3) They can be easily shared with other healthcare providers
4) They reduce the risk of loss or damage
Digital dental records are stored electronically, which makes them easier to store, retrieve, and organize compared to paper records.
Which one of the following drugs increases gastrointestinal motility?
1) Glycopyrrolate.
2) Atropine.
3) Neostigmine.
4) Fentanyl.
Synthetic opioids, sharing properties of opium and morphine, include meperidine, propoxyphene, diphenoxylate, fentanyl, buprenorphine, methadone, and pentazocine.
Fentanyl (80 to 100 times more powerful than morphine) is especially dangerous.
Atropine blocks the muscarinic receptors. Atropine decreases gastrointestinal tract motility and secretion and causes constipation.
Although various derivatives and congeners of atropine (such as propantheline, isopropamide, and glycopyrrolate) have been advocated in patients with peptic ulcer or with diarrheal syndromes
Neostigmine is Cholinesterase inhibitors that enhance the effects of parasympathetic stimulation and leads to reversal of intoxication by agents with a anticholinergic action
The development of lateral canals can be attributed to:
1) Faulty restoration technique
2) Cracks in Hertwig’s epithelial root sheath
3) Genetic anomalies
4) External dental trauma
ADC Test Answer: 2
Lateral canals form due to disruptions in the Hertwig's epithelial root sheath during tooth root development, creating additional channels in the root structure.
What must a healthcare professional do to ensure informed consent is valid?
1) Provide all possible treatment options
2) Guarantee the success of the proposed treatment
3) Ensure the patient has capacity and understanding
4) All of the above
For informed consent to be valid, the patient must be capable of
understanding the information provided and have the capacity to make a decision.
Which of the following is NOT a characteristic of an ideal abutment tooth?
1) Equal or more than half alveolar bone support
2) Strong connectors
3) Compromised periodontal health
4) Good crown to root ratio
Compromised periodontal health is typically a reason to avoid using a tooth as an abutment.
What type of disinfectant is most commonly used for surface disinfection in a
dental office?
1) Alcohol-based
2) Chlorine-based
3) Phenolic-based
4) Iodine-based
Phenolic disinfectants are commonly used in dental offices because
they are broad-spectrum, effective against a wide range of pathogens, and
suitable for disinfecting surfaces and equipment.
What is the purpose of using a rubber dam during dental procedures?
1) To reduce the spread of infection
2) To improve patient comfort
3) To increase the visibility of the operative site
4) To reduce the risk of aspiration and ingestion of materials
While a rubber dam can also improve patient comfort and increase visibility of the operative site, its primary purpose is to isolate the operative site from the patient's oral fluids, thereby reducing the spread of infection between the patient and the dental team and protecting the patient's airway from aspiration.
The main advantage of osteogenesis distraction is:
1) Increased risk of relapse
2) Large movements with less relapse
3) Shorter treatment time
4) Less pain during the procedure
Osteogenesis distraction is a surgical technique used to gradually lengthen bones. One of its primary advantages is that it allows for substantial bone movements with a reduced risk of relapse compared to other methods. By applying a controlled force over a period, the bone is stretched and new bone forms in the distraction gap, leading to a stable and predictable outcome. The process is generally well-tolerated, with pain managed through medication and adjustments to the distraction device.
Local anesthesia depends on:
1) Strength bond between drug and nerve.
2) Strength bond between drug and its intensity.
3) Bond between drug and time of removal from the body.
4) All of the above.
ADC Test Answer: 1
The effectiveness of local anesthesia is primarily determined by how well the anesthetic agent binds to nerve tissues.
Which nerve allows a patient to look upwards and downwards?
1) Trigeminal nerve
2) Facial nerve
3) Oculomotor nerve
4) Trochlear nerve
The oculomotor nerve (cranial nerve III) controls most of the eye's movements, including looking upwards and downwards.
The first heart sound relates to 1. Closure of the A-V valves 2. Opening of the A-V valves 3. Excitation of the auricles 4. Closure of the aortic valve
Physiology Answer: 2The first heart sound relates to Opening of the A-V valves
Which of the following is a sign of child abuse that a dentist might observe during a routine examination?
1) Frequent, unexplained oral injuries
2) Reluctance to speak openly about home life
3) Presence of dental caries
4) Fear of the dentist
Frequent, unexplained oral injuries such as fractured teeth or lacerations can be indicative of child abuse.
A 22-year-old woman has acute gingival hypertrophy, spontaneous bleeding from the gingiva, and complains of weakness and anorexia. Her blood analysis was as follows: HB=12gm, Neutrophils=90%, Monocytes=1%, Platelets=250000, WBC=100000, Lymphocytes=9%, Eosinophils=0%. The most likely diagnosis is:
1) Myelogenous leukemia
2) Infectious mononucleosis /glandular fever/
3) Thrombocytopenic purpura
4) Gingivitis of local etiological origin
ADC Test Answer: 1
The elevated white blood cell count (WBC=100000) and neutrophils (90%), along with gingival hypertrophy, suggest myelogenous leukemia, which is characterized by abnormal proliferation of myeloid cells.
Which of the following is NOT a benefit of using computerized dental records?
- Enhanced data security
- Reduced need for physical storage space
- Increased likelihood of errors and illegibility
- Improved efficiency in retrieving patient information
Computerized records generally reduce errors and improve legibility compared to handwritten notes.
What is the primary concern when using templates for dental records?
- Lack of flexibility
- High cost of implementation
- Limited accessibility for patients
- Requires advanced IT skills
While templates can help organize information, the primary concern is that they may not capture all individual aspects of a patient's case or allow for the nuances of personalized care.
The principle of justice in healthcare ethics refers to:
1) The obligation to tell the truth
2) Fair distribution of healthcare resources
3) The duty to act in the best interest of the patient
4) Respecting the patient's wishes
Ethics and Jurisprudence Answer: 2Justice involves ensuring that patients receive fair and equitable access to healthcare resources and services, regardless of their background.
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.
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.
What enzyme does Streptococcus mutans produce that plays a key role in
converting dietary sugars into extracellular polysaccharides, which contribute
to bacterial adherence and biofilm formation?
1) Amylase
2) Glucosyltransferase (GTF)
3) Fructosyltransferase
4) Sucrase
S. mutans produces glucosyltransferase, which converts dietary sugars, particularly sucrose, into extracellular polysaccharides like glucans and fructans that facilitate bacterial adherence to tooth structures and promote biofilm formation.
A woman aged 48 years visits a dermatologist to have a mole removed. The patient tells her physician that she got allergic reaction to a local anaesthetic the last time she had undergone dental work. Investigation of the lady's dental records by her dentist discloses that the patient received procaine for a tooth extraction. Among the following alternatives, which drug would be suitable for the present procedure?
- Benzocaine
- Chloroprocaine
- Tetracaine
- Mepivacaine
Two classes of local anaesthetics exist namely: Esters and Amides.
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.
What is the dentist's role in identifying signs of domestic violence in a patient?
1) To ask the patient directly if they are being abused
2) To recognize and document physical and behavioral signs of abuse
3) To provide counseling services
4) To provide legal advice
The dentist's role involves recognizing and documenting any physical injuries or behavioral indicators that may suggest abuse.
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 percentage of older adults in nursing homes exhibit untreated dental
caries?
1) 10-20%
2) 30-40%
3) 50-60%
4) 70-90%
Studies show that a significant proportion of elderly residents in
nursing homes have untreated dental caries, often due to inadequate access to
dental care.
A patient who has been taking quantities of aspirin might show increased postoperative bleeding because aspirin inhibits:
1) Synthesis of thromboxane A2 and prevents platelet aggregation
2) Synthesis of prostacyclin and prevents platelet aggregation
3) Synthesis of prostaglandin and prevents production of blood platelets
4) Thrombin and prevents formation of the fibrin network
ADC Test Answer: 1
Aspirin irreversibly inhibits thromboxane A2 synthesis, which is crucial for platelet aggregation, leading to increased bleeding risk.
Drug of choice for ventricular arrhythmias induced by bupivacaine:
1) Bretylium tosylate
2) Lignocaine
3) Nifedipine
4) Verapamil
Bupivacaine has got high cardiotoxic potential.
Can informed consent be given over the phone or through email?
1) Yes, as long as the patient signs and returns the form
2) No, it must always be obtained in person
3) It is preferred in person, but alternatives can be used in some cases
4) Only for emergency treatments
Informed consent is typically a face-to-face interaction where the
dentist can assess the patient's understanding and answer questions. However,
some jurisdictions may allow for alternative methods under certain
circumstances, such as telemedicine or in emergencies.
Before filling a Class V abrasion cavity with GIC (Glass Ionomer Cement) you should:
1) Clean with pumice, rubber cup, water, and weak acid
2) Dry the cavity thoroughly before doing anything
3) Acid etch cavity then dry thoroughly
4) Rinse the cavity with saline
ADC Test Answer: 1
The purpose of using pumice and a rubber cup is to clean the cavity without excessively drying it, which is important as GIC is moisture-loving.
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.
What is the primary goal of the Gillies approach in zygomatic arch fractures?
1) To minimize scarring
2) To allow for accurate fracture reduction
3) To prevent nerve damage
4) To facilitate faster healing
The Gillies approach is designed to provide direct access to the zygomatic arch, enabling precise reduction of fractures through a bimanual technique.
Facial profile of a typical mouth breather is
1) Long and wide
2) Short and wide
3) Long and narrow
4) Short and narrow
SOLUTION Altered respiratory pattern, such as breathing through the mouth rather than the nose, could change the posture of the
head, jaw, and tongue.
In order to breathe through the mouth, it is necessary to lower the mandible and tongue, and extend (tip back) the head.
If these postural changes were maintained, face height would increase, and posterior teeth would super-erupt;
unless there was unusual vertical growth of the ramus, the mandible would rotate down and back, opening the bite
anteriorly and increasing overjet; and increased pressure from the stretched cheeks might cause a narrower maxillary dental arch.
What suture material is recommended for lip trauma and oroantral fistula?
1) Chromic gut
2) Black silk
3) Vicryl
4) Nylon
Black silk is often used for suturing lip trauma and oroantral fistulas due to its strength and ease of handling.
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.
The auriculotemporal nerve carries some fibers which are . 1. motor to masseter muscle 2. secretory to parotid gland 3. afferent from the carotid body 4. sensory to lining of tympanic cavity
Anatomy Answer: 4The auriculotemporal nerve carries some fibers which are sensory to lining of tympanic cavity
Which of the following is true about the supraeruption of unopposed molars?
1) Supraeruption occurs 60% of the time.
2) Supraeruption is more prevalent in the mandibular arch.
3) Unopposed molars have a mean supraeruption of 3.0mm.
4) Attachment loss is one of the main predictors.
Attachment loss reduces periodontal stability, making it a significant factor in
the supraeruption of unopposed teeth.
Which soft palate muscle is not affected by a laceration of the mucosa
1 cm lingual to the 2nd maxillary molar?
1) Tensor veli palatini
2) Palatoglossus
3) Palatopharyngeus
4) Levator veli palatini
A laceration of the mucosa 1 cm lingual to the 2nd maxillary molar is unlikely to damage the levator veli palatini as it is located above the palatoglossal fold.
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.
What is a secondary caries lesion?
1) A lesion that occurs on the surface of a restored tooth
2) A lesion that occurs only in the presence of fluoride
3) A lesion that is limited to the enamel surface
4) A lesion that occurs only in children
Secondary or recurrent caries occur at the junction of the tooth and a restoration, often due to microleakage or inadequate oral hygiene.
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 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.
As far as surgical removal of wisdom teeth is concerned, which of the following is true?
1) Prophylactic prescription of antibiotics reduces dramatically the chances of infection
2) Raising a lingual flap will increase the incidence of neurapraxia but will reduce the incidence of neurotmesis with respect to the lingual nerve
3) Prophylactic prescription of dexamethasone will dramatically reduce postoperative swelling
4) Inferior dental nerve injury is unlikely since the nerve passes medial to the wisdom tooth root
ADC Test Answer: 2
Raising a lingual flap can increase the risk of temporary nerve injury (neurapraxia) while potentially reducing the risk of more severe nerve damage (neurotmesis).
Which nerve is affected if the tongue deviates to the right when protruded?
1) Right hypoglossal
2) Left hypoglossal
3) Glossopharyngeal
4) Vagus
Deviation of the tongue to the right indicates weakness in the right hypoglossal nerve, which innervates the muscles of the tongue.
The rate of set of polysulfide impression materials is accelerated by:
1) Increasing the mixing temperature.
2) Decreasing the mixing temperature.
3) Adding oleic acid to the mix.
4) Increasing the base/catalyst ratio.
FPD and RPD Answer: 1
Explanation: Higher temperatures increase the chemical reactivity of polysulfide impression materials, resulting in faster setting times.
First sign of complication of anaesthesia:
1) Tachycardia
2) Bradycardia
3) Hypertension
4) Convulsions
Tachycardia is the first sign of many complications seen in anaesthesia.
Which of the following is a key component of informed consent?
1) The
healthcare provider's opinion on the treatment
2) The patient's medical history
3) The risks and benefits of the proposed treatment
4) The cost of the treatment
A key component of informed consent is providing the patient with information about the risks and benefits associated with the proposed treatment.
The most efficient method of sterilization in dental practice is 1. ultraviolet radiation 2. moist heat at 121°C for 20 min 3. boiling for 20 mm 4. dry heat at 40° C for 2 hours
Microbiology Answer: 2The most efficient method of sterilization in dental practice is moist heat at 121°C for 20 min
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
Contraindication for supraglottic laryngectomy is all except:
1) Tumour involving pyriform sinus
2) Vocal cord fixidity
3) Tumour involving the preepiglottic spread
4) Post cricoid area expansion
Pre-epiglottic involvement is not a contraindication for supraglottic laryngectomy.
What is the primary function of the tensor tympani muscle?
1) To assist in swallowing
2) To dampen loud sounds
3) To facilitate hearing
4) To stabilize the jaw
The tensor tympani muscle helps protect the inner ear from loud sounds by tensing the tympanic membrane, reducing sound transmission.
Which vaccination does NOT include deactivated microorganisms?
1) Live-attenuated vaccines
2) Inactivated vaccines
3) Subunit vaccines
4) Toxoid vaccines
Live-attenuated vaccines contain live, weakened forms of the pathogen.
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.
Which of the following is a non-preferable characteristic for an abutment
tooth root shape?
1) Broad and divergent roots
2) Round and fused roots
3) Single and conical roots
4) All of the above
While not explicitly mentioned as non-preferable, round and fused roots are not listed among the preferred characteristics for abutment teeth. Broad and divergent roots are considered desirable.
Ethosuximide is the drug of choice for treatment of ?
1) Generalized tonic clonic seizures
2) Absence seizures
3) Simple partial seizures
4) Complex partial seizures
Ethosuximide is the drug of choice for treatment of absence seizures. Other drugs used in the management of absence seizures are valproic acid, lamotrigine and clonazepam.
What is the primary bacterium associated with root caries?
1) Streptococcus mutans
2) Lactobacillus
3) Actinomyces
4) Streptococcus salivarius
The specific plaque hypothesis identifies Actinomyces as the main bacterium associated with root caries, which are lesions that occur on the root surface of the tooth, typically in older adults with gum recession.
What type of epithelium lines exocrine glands?
1) Squamous
2) Transitional
3) Columnar or cuboidal
4) Stratified
Exocrine glands are typically lined with columnar or cuboidal epithelial cells, which are specialized for secretion.
Type 1 diabetes is more common in which of the following populations?
1) Hispanics
2) Africans
3) Asians
4) Non-Hispanic Whites
Type 1 diabetes has a higher incidence among non-Hispanic whites, particularly in children. This demographic shows a greater prevalence of the autoimmune condition compared to other ethnic groups.
Patients with which blood pressure range should be encouraged to seek medical consultation despite being able to undergo dental treatment? 1) 110/70 mmHg 2) 120/80 to 140/90 mmHg 3) 180/110 mmHg 4) 160/110 mmHg
Pathology and Medicine Answer: 2Patients with blood pressure between 120/80 and 140/90 should be encouraged to consult a doctor, even though dental treatment can proceed.
Patients with cerebral palsy may exhibit which of the following oral manifestations?
1) Limited mouth opening and difficulty with oral hygiene
2) Excessive salivation and speech impairment
3) Difficulty swallowing and risk of aspiration
4) All of the above
Cerebral palsy can affect muscle control and coordination, leading to challenges in maintaining good oral hygiene, difficulty with speech and swallowing, and increased risk of aspiration.
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.
What’s the percentage of individuals over 25 years old with periodontitis in the UK?
1) 30%
2) 50%
3) 64%
4) 75%
Approximately 64% of individuals over 25 years old in the UK are affected by periodontitis, highlighting the prevalence of periodontal disease.
What is the general guideline for discussing risks with patients?
1) Only discuss risks that are common and severe
2) Discuss all possible risks, no matter how rare
3) Only discuss risks that patients inquire about
4) It is not necessary to discuss risks if the treatment is routine
Healthcare providers should inform patients about common and severe
risks that have a reasonable chance of occurring, allowing them to make an
informed decision.
What is the primary treatment for syncope during a dental procedure?
1) Administering fluids intravenously
2) Placing the patient in the supine position
3) Inhalation of ammonia salts
4) Giving oxygen
Laying the patient flat with their legs elevated helps increase blood flow to the brain and restore consciousness.
To impart a hardening heat treatment to a dental gold alloy, the best method is to Reheat to 450°C and cool uniformly to 250°C over a period of 15 to 30 minutes
What should be avoided when documenting patient records?
1) Using clear language
2) Omitting relevant information
3) Keeping records up to date
4) Documenting consent
It is crucial to provide a complete picture of the patient's dental health to ensure proper care and treatment planning.
Which of the following statements about muscle fibers is correct?
1) The A band is made of Myosin
2) Troponin combines with calcium
3) Troponin has I, T, and C subcomponents
4) All of the above
All the statements are correct.
What is the most common cause of dental trauma in children?
1) Sports injuries
2) Falls
3) Accidental injuries
4) Physical altercations
Falls are the most common cause of dental trauma in children, often resulting in fractures or avulsions of teeth.
Cardio stable anaesthetic:
- Etomidate
- Propadanil
- Ketamine
- Thiopental
Etomidate is known for its cardio-stability.
Norepinephrine is stored at the Postganglionic parasympathetic nerve endings
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 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 suture material is used on lips?
1) Prolene
2) Nylon
3) Vicryl
4) Both 1 and 2
Prolene and nylon are both commonly used suture materials for lip closures due to their strength and minimal tissue reaction.
Which bacteria is most commonly associated with acute dentistry-related infections?
1) Streptococcus viridans
2) Staphylococcus aureus
3) Escherichia coli
4) Neisseria meningitidis
Streptococcus viridans is part of the normal oral flora and frequently implicated in dental infections, particularly endocarditis following dental procedures.
Informed consent for children typically requires consent from:
1) The child
only
2) The healthcare provider
3) The child's guardian or parent
4) The child's teacher
The child's guardian or parent
Explanation: Parents or guardians are responsible for providing
consent for medical treatment for minors.
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 sex ratio for oral cancer?
1) 2:3
2) 1:2
3) 2:1
4) 3:1
In England and Wales, the male to female ratio for oral cancer is approximately 2:1, while in Scotland, it is about 3:1, indicating a higher prevalence in males.