Dentist Abroad
What is the correct statement regarding the remnants of ameloblasts and odontoblasts?
1) The remnants of Ameloblast contribute to the primary enamel cuticle.
2) The last secretion of the odontoblast is cementum X.
3) The last secretion of the ameloblast is the acquired enamel cuticle.
4) The remnants of odontoblast form the primary enamel cuticle.
ADC Test Answer: 1
The primary enamel cuticle is formed from the remnants of the enamel organ cells, particularly the ameloblasts, which secrete a thin layer of enamel-like material that covers the enamel surface when the tooth erupts.
What is the purpose of using a handpiece with a 330 bur during a pulpotomy procedure?
1) To remove caries.
2) To reduce occlusal surface.
3) To remove the roof of the pulp chamber.
4) To mix IRM.
A handpiece with a 330 bur is used to remove the roof of the pulp chamber during a pulpotomy procedure.
A medication that reduces the rate of aqueous humor formation in acute glaucoma
1) phenothiazines
2) amphotericin B
3) Isoniazid
4) carbonic anhydrase inhibitors
Carbonic anhydrase is found in erythrocytes, kidney, gut, ciliary body, choroid plexus, and glial cells.
Carbonic anhydrase inhibitors are used primarily as probes for studying renal transport mechanisms and in the treatment of glaucoma
When used to treat glaucoma, carbonic anhydrase inhibitors diminish the transport of HCO3 - and Na+ by the ciliary process, which limits intraocular pressure.
This reduces the formation of aqueous humor by up to 50%, thereby reducing the intraocular pressure.
The main stimulation for production of A.D.H. is 1. Increase in plasma potassium. 2. Decrease in blood volume 3. Increase in extracellular fluid 4. Decrease inextracellularosmotic pressure
Physiology Answer: 2The main stimulation for production of A.D.H. is Decrease in blood volume - A.D.H. secretion increases during osmotic diuresis
What is the recommended prothrombin time for safe tooth extraction?
1) Less than 20 seconds
2) Within 1½ times the normal prothrombin time
3) Within 2 times the normal prothrombin time
4) More than 25 seconds
Extraction can be done if the prothrombin time is less than or equal to 1½ times the normal range to ensure adequate blood clotting.
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.
What is the most common microorganism associated with root surface caries?
1) Actinomyces viscosus.
2) Streptococcus mutans.
3) Streptococcus salivarius.
4) Lactobacillus acidophilus.
ADC Test Answer: 1
Actinomyces viscosus is often associated with root surface caries due to its ability to adhere to and colonize the root surface under conditions of reduced salivary flow and increased carbohydrate exposure.
MAO inhibitors are contraindicated in a patient taking?
1) Pethidine
2) Buprenorphine
3) Morphine
4) Pentazocine
first choice pethidine Use of MAO inhibitors in patient taking pethidine / pentazocine can precipitate serotonin syndrome.
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.
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.
When treating a patient with an intellectual disability, which of the following is NOT a component of informed consent?
1) Ensuring the patient understands the risks and benefits of the proposed treatment
2) Having a legal guardian present to sign the consent form
3) Allowing the patient to ask questions about the treatment
4) Providing the patient with written information at their comprehension level
Informed consent requires that the patient themselves understands and consents to the treatment, not necessarily that a legal guardian must be present to sign.
How can a cusp fracture immediate to a Class II inlay be detected?
1) History.
2) Visually.
3) Radiograph.
4) Percussion.
E. Touching the tip of the cusp / Pressure on the cusp.
ADC Test Answer: 3
A cusp fracture may not always be visible on a radiograph due to its location and extent, but it is often the best method to detect such a fracture in a clinical setting.
Maximum decrease in cardiac output is caused by:
1) Enflurane
2) Halothane
3) Sevoflurane
4) Methoxyflurane
Enflurane causes the maximum decrease in cardiac output, followed by halothane.
What type of hypersensitivity reaction is involved in the pathogenesis of contact dermatitis?
1) Type I
2) Type II
3) Type III
4) Type IV
Contact dermatitis is mediated by a delayed-type hypersensitivity reaction (Type IV), which involves T-cell activation.
The most appropriate management for a child with a primary tooth that caused a
severe, throbbing toothache the previous night is to
1) prescribe an analgesics.
2) perform a pulpectomy
3) remove caries and place a temporary restoration.
4) perform a pulpotomy.
Pulpectomy removes necrotic or infected pulp tissue, resolving pain while preserving the tooth's functionality.
In which direction does the palatal root of the upper first molar usually curve towards?
1) Facial / buccal
2) Lingual
3) Mesial
4) Distal
ADC Test Answer: 1
The palatal root of the maxillary first molar typically curves towards the buccal, creating challenges in accessing and treating its canals.
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 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 main disadvantage of using nitrous oxide for anxious patients with respiratory issues?
1) It can cause respiratory depression
2) It can increase the risk of infection
3) It is less effective in controlling pain
4) It requires additional monitoring equipment
Nitrous oxide can cause respiratory depression in patients with compromised lung function, making it a less suitable option for those with respiratory issues.
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.
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.
When adjusting the occlusal plane of natural teeth opposed by a complete or partial denture, it should be completed:
1) After the teeth have been set on the trial denture.
2) Immediately after making the final casts.
3) Upon delivery of the denture.
4) After the diagnosis and treatment plan has been established.
FPD and RPD Answer: 4Adjusting the occlusal plane is a foundational step that impacts all subsequent processes in prosthetic rehabilitation. This adjustment should be based on a comprehensive diagnosis and treatment plan to ensure compatibility with the patient’s anatomy and function.
What is the role of a dental therapist in the care of a patient with special needs?
1) To provide all aspects of dental treatment under the supervision of a dentist
2) To perform only simple procedures like cleanings and fillings
3) To manage the patient's medical conditions
4) To provide oral health education and preventive care
A dental therapist is a mid-level dental provider who can perform various procedures under the supervision of a dentist.
What is the function of axytocin during the third trimester of pregnancy?
1) It induces sleep
2) It stimulates uterine contractions
3) It regulates fetal growth
4) It prepares the body for lactation
Axytocin is released by the pituitary gland and plays a crucial role in the initiation of labor by causing the uterus to contract.
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.
Which of the following is NOT a form of neglect?
1) Failing to provide food and water
2) Leaving a child unsupervised in a dangerous environment
3) Verbally abusing a partner
4) Ignoring medical needs
Neglect involves failing to provide necessary care, such as food, water, and medical attention. Verbal abuse is a form of emotional abuse, not neglect.
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
A partial denture is often the preferred option to replace missing teeth during the healing process, providing functional and aesthetic support.
What drug is commonly associated with causing angioedema?
1) Prednisone
2) Ibuprofen
3) Ramipril
4) Metformin
Ramipril, an ACE inhibitor, is well known for causing angioedema as a side effect.
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.
Immediately following the closure of the A-V valves is the period of 1. Isotonic contraction 2. Isometric contraction 3. Isometric relaxation 4. Isotonic relaxation
Anatomy Answer: 3Immediately following the closure of the A-V valves is the period of Isometric relaxation
What is the critical pH for fluorapatite?
1) 5.5
2) 6.2
3) 4.5
4) 7.0
Fluorapatite has a critical pH of 4.5, below which demineralization occurs. Fluorapatite has a higher resistance to acid damage compared to hydroxyapatite, with a critical pH of 4.5 for demineralization.
The cricothyroid artery is a branch of the 1. occipital artery 2. superior thyroid artery 3. facial artery 4. superficial temporal artery
Anatomy Answer: 2The cricothyroid artery is a branch of the superior thyroid artery
The essential. sulphur containing amino acid is: 1. Methionine 2. Cystetne 3. Cystine 4. Valine
Biochemistry Answer: 1Methionine is sulphur containing AminoAcid
Proton pump inhibitors are most effective when they are given
1) After meals
2) Shortly before meals
3) Along with H2 blockers
4) During prolonged fasting periods
Bio-availability of all proton pump inhibitors is reduced by food; they should be taken in empty stomach, followed 1 hour later by a meal to activate H+K+ ATPase and make it more susceptible to the proton pump inhibitor.
What is the main function of EDTA in endodontics?
1) Decalcification of dentine
2) Cleaning debris from root canal
3) Achieving hemostasis
4) Enhancing bonding strength
ADC Test Answer: 1
EDTA is primarily used for its ability to decalcify dentin and facilitate the removal of the smear layer during root canal treatment.
Which of the following is a contraindication for the use of local
anesthesia in a geriatric patient?
1) Hypertension
4) Cardiovascular disease
3) Diabetes
4) All of the above
All of the listed conditions can influence the patient's response
to local anesthetics. It is important to carefully consider the patient's
medical history and current medications before administering local anesthesia.
What is the strength of adrenaline used in dental procedures?
1) 1:100
2) 1:1000
3) 1:10000
4) 1:5000
The standard concentration of adrenaline used in dental procedures is 1:1000, which is effective for hemostasis and prolonging the duration of local anesthesia.
What is the most suitable X-ray technique to diagnose interproximal caries in primary molars of a three-year-old child?
1) Bitewing
2) Periapical
3) Occlusal
4) Ceiling view
Bitewing X-rays are effective for detecting interproximal caries, especially in primary molars, due to their ability to capture the contact areas between teeth.
To obtain the desired projection of occlusal loads, the floor of the occlusal rest should:
1) Be convex
2) Slope from the marginal ridge towards the contact of the abutment
3) Slope from the contact of abutment towards the marginal ridge
4) Be concave
ADC Test Answer: 2
The floor of the occlusal rest should slope from the marginal ridge toward the contact point of the abutment.
What is the best treatment for recurrent pericoronitis?
1) Antibiotics
2) Extraction of the involved tooth
3) Root canal treatment of the third molar
4) Periodontal scaling and root planing
Extracting the impacted third molar is the best treatment for recurrent pericoronitis as it addresses the underlying cause of the infection.
What are the main categories of dental records? 1) Diagnostic, treatment, and financial 2) Medical, dental, and surgical 3) Administrative, clinical, and radiographic 4) Patient, treatment, and billing
Dental Records Answer: 3Dental records are generally categorized into three main types: administrative, which include patient information and appointment details; clinical, which encompass the patient's medical and dental history, treatment notes, and progress; and radiographic, which are the imaging studies such as x-rays used to diagnose and plan treatment.
What information should be clearly noted in the dental record when multiple dental practitioners are involved?
- The name of the primary dentist only
- The name and specialty of each practitioner who renders treatment
- The fee charged by each dentist
- The patient's preferred dentist
It is essential to have a clear record of which practitioner provided specific treatments for legal and quality assurance purposes.
What antibiotic is used to manage a superinfected herpetic lip lesion?
1) Ciprofloxacin
2) Metronidazole
3) Cefuroxime
4) Doxycycline
Cefuroxime is effective against a range of bacteria that may superinfect herpetic lesions, making it a suitable choice for treatment.
Which of the following calcium channel blockers is commonly used to treat hypertension?
1) Losartan
2) Nifedipine
3) Furosemide
4) Clonidine
Nifedipine is a calcium channel blocker used in hypertension, while Losartan is an ARB, Furosemide is a diuretic, and Clonidine is a central alpha2-agonist.
Porcelain binds to metal in PFM crown by:
1) Metallic bind
2) Mechanical bond
3) Chemical bond
4) Both 2 and 3
Porcelain binds to metal in metal ceramic restorations by mechanical interlocking and chemical bonding.
The adherent metallic oxides, which are formed during the degassing cycle form a good chemical bond with porcelain.
Tin oxide and Indium oxide are formed from precious metal alloys while chromium oxide is formed from base metal alloys.
The neuromuscular blocker that does not need reversal of action by neostigmine at the end of the operation is :
1) d–Tubocurarine
2) Doxacurium
3) Pipecuronium
4) Mivacurium
Long acting non-depolarizing (competitive) NM blocking agents require reversal with neostigmine.
Mivacurium is the shortest acting NDMR.
Mivacurium can be used in day care surgery.
What is the difference between a dental chart and a dental record?
1) A dental chart is a visual representation of teeth, while a dental record includes all patient information.
2) A dental chart includes only the patient's medical history, while a dental record has the full treatment history.
3) A dental record is a visual representation of teeth, while a dental chart has the full treatment history.
4) Both are the same.
A dental chart is a part of the patient's dental record that specifically depicts the teeth and their conditions.
Acetylcholinesterase receptor opens an ion channel, undergoes irreversible conformational changes when exposed to carbamates , it is inactivated in myasthenia gravis
When treating a special needs patient, what is the most important initial step?
1) Begin treatment immediately
2) Obtain a detailed medical history
3) Discuss treatment costs
4) Schedule a follow-up appointment
A detailed medical history helps identify any special considerations, medication interactions, and the patient's specific needs before treatment.
Which of the following is a common side effect of benzodiazepines used for anxiety management in dental settings?
1) Nausea
2) Headache
3) Dry mouth
4) All of the above
Benzodiazepines, such as midazolam, can cause side effects like nausea, headache, and dry mouth, which may be experienced by patients receiving them for anxiety management.
The fovea palatini serves as a landmark for determining:
1) Anterior border of upper denture
2) Posterior border of upper denture
3) Midline of the arch
4) Occlusal plane angle
ADC Test Answer: 2
The fovea palatini marks the posterior seal area of the upper denture, essential for denture retention.
What material is LEAST usable for an impression of PFM (Porcelain-Fused-to-Metal)?
A. Alginate
B. Polyvinyl siloxane
C. Polyether
D. Agar
Alginate is primarily used for making preliminary impressions due to its set time and hydrophilic properties but does not provide the necessary detail and stability required for precise impressions needed for PFMs.
Which of the following is NOT a component of informed consent?
1) Competency of the patient
2) Voluntariness of the consent
3) Explanation of the cost of treatment
4) Presence of a witness
Explanation: Although a witness can be part of the informed consent process in certain situations, the core components are the patient's competency to make decisions, the voluntariness of their consent, and the provision of comprehensive information about the treatment, including risks, benefits, and alternatives.
Which is NOT TRUE in relation to the prescription of 5mg or 10mg of diazepam for sedation?
1) Patients commonly complain 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 postoperatively
5) As a benzodiazepine, the action can be reversed with Flumazenil
Diazepam can cause side effects, including sedation and impaired motor function, and is not free from adverse reactions.
Ameloblastoma is the most aggressive:
1) Odontogenic tumor
2) Benign tumor
3) Malignant tumor
4) Fibrous tumor
Ameloblastoma is a benign but locally aggressive tumor of odontogenic origin, meaning it arises from the tissues that form teeth.
What is the recommended technique for removing bone during an extraction to prevent bone necrosis?
1) High-speed handpiece with continuous coolant irrigation
2) Chisel and mallet with manual pressure
3) Surgical bone saw
4) Laser bone removal
Using a high-speed handpiece with continuous coolant irrigation allows for precise bone removal and minimizes thermal necrosis of the bone.
What is a potential complication of using midazolam in pregnant women?
1) Enhanced sedation effects
2) Withdrawal symptoms in the neonate
3) Rapid metabolism in the body
4) No contraindications noted
Midazolam can cause significant risks to the neonate if used during pregnancy, particularly during the third trimester, leading to withdrawal symptoms like hypotonia and respiratory issues after birth.
What enzyme assists microorganisms when they are causing dentine caries?
1) Collagenase
2) Enolase
3) Lactoferrin
4) Amylase
Enolase is involved in the glycolytic pathway of bacteria, aiding in their metabolism and contributing to the caries process.
The primary reason to replace missing anterior teeth with a bridge is:
1) Aesthetic considerations
2) Functional occlusion
3) Overbite correction
4) Tooth stability
ADC Test Answer: 1
Aesthetics play a crucial role in the choice to replace missing anterior teeth, as they impact patient confidence and facial appearance.
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 administered via intravenous, intramuscular, oral, and intrathecal routes. It is the second method of choice for induction in children, with the first being inhalational.
Which of the following is the best method for ensuring confidentiality of dental
records?
1) Keeping records in an unlocked drawer
2) Sharing records with unauthorized staff
3) Using a password-protected electronic records system
4) Discussing patient information in public areas
Which of the following analyses is most appropriate for use in an adult patient?
1) Moyers.
2) Bolton.
3) Tanaka-Johnston.
4) all of the above.
The Bolton analysis is most appropriate for use in adult
patients to determine the fit and proportion of teeth. It is a method of
measuring the mesiodistal and buccolingual dimensions of teeth to ensure that
the upper and lower teeth are in harmony. The other options, such as Moyers and
Tanaka-Johnston, are more commonly used for children and adolescents to assess
tooth size and arch dimensions.
What is the primary purpose of informed consent in dentistry?
1) To protect the dentist from legal liability
2) To ensure the patient understands and voluntarily agrees to the proposed
treatment
3) To provide the patient with financial information about the treatment
4) To obtain the patient's signature for insurance purposes
Informed consent is a process where the dentist communicates with the patient about the diagnosis, the risks and benefits of the proposed treatment, alternative treatment options, and the patient's right to refuse or withdraw consent. The primary goal is to empower the patient to make an informed decision regarding their dental care.
While doing preparation for an FMC crown prep on tooth 16 in a 20-year-old man, a pinpoint pulp exposure occurred. How would you best manage the situation?
1) Do DPC immediately under rubber dam then tell the patient about the situation
2) Tell the patient immediately and do pulpotomy
3) Start RCT then describe the situation to the patient
4) Tell the patient that you have encountered an inadvertent incident while preparing and refer him to a specialist
ADC Test Answer: 1
Direct Pulp Capping (DPC) is the most appropriate management strategy for a small pinpoint pulp exposure.
Can a patient withdraw their informed consent at any time?
1) No, once given, consent cannot be withdrawn
2) Yes, but only if the treatment has not yet started
3) Yes, at any point during the treatment
4) Only if the patient has not signed a consent form
A patient has the right to withdraw informed consent at any time
during the treatment process, regardless of whether they have signed a consent
form or not.
Which factor is likely implicated in the excessive fibrinolysis observed in localized alveolar osteitis?
1) Platelets
2) Fibrinogen
3) Plasmin
4) Thrombin
Excessive local fibrinolytic activity, primarily due to elevated levels of plasmin, is implicated in the development of localized alveolar osteitis after tooth extractions.
What is the 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.
What are the predisposing factors for syncope during a dental procedure?
1) High blood pressure
2) Anxiety and fear of needles
3) Severe tooth pain
4) All of the above
Syncope can be triggered by anxiety, fear, and the sight of blood, which lead to increased catecholamine release, decreased peripheral resistance, and lowered blood pressure, causing cerebral ischemia.
What is the primary treatment for trigeminal neuralgia?
1) Antidepressants
2) Anticonvulsants
3) Opioids
4) Muscle relaxants
Anticonvulsants, such as carbamazepine, are the first-line treatment for trigeminal neuralgia, effectively reducing the frequency and intensity of pain episodes.
Dry heat sterilization of paper points without incineration is accomplished at 1. 160°C for 2hours 2. 120°C for l hour 3. 100°C for 2 hours 4. 200°C for 1 hour
Microbiology Answer: 1Dry heat sterilization of paper points without incineration is accomplished at 160°C for 2hours
What is the role of dental nurses in record keeping?
1) They are not involved in record keeping
2) They can assist in notetaking to ensure contemporaneous records
3) They are responsible for financial records
4) They only handle patient scheduling
Dental nurses play a vital role in documenting patient information during appointments, enhancing the accuracy of records.
Which of the following is a common form of neglect that can lead to significant dental problems?
1) Failure to provide dental care
2) Forcing a child to eat only sugary foods
3) Physical abuse to the head and neck region
4) Emotional abuse
Neglect often manifests as the failure to provide essential dental care, leading to severe dental problems.
After an amalgam restoration has been carved, it is important to lightly burnish the surface because burnishing 1. moves the amalgam in such a way as to fill in voids and submarginal areas 2. changes the contour of the restoration 3. increases the amalgam’s resistance to corrosion 4. contributes a dull luster to the surface
Dental Material Answer: 3After an amalgam restoration has been carved, it is important to lightly burnish the surface because burnishing increases the amalgam’s resistance to corrosion
A component of the coenzyme required in a transamination process is 1. Thiamine 2 Folic acid 3 Pyridoxine 4 Riboflavin
Biochemistry Answer: 3A component of the coenzyme required in a transamination process is Pyridoxine
Which of the following is NOT a type of cognitive-behavioral therapy used in managing dental anxiety?
1) Systematic desensitization
2) Guided imagery
3) Dental hypnosis
4) Exposure therapy
While hypnosis can be used in dentistry for pain management and relaxation, it is not typically classified as a form of cognitive-behavioral therapy. Exposure therapy, systematic desensitization, and guided imagery are examples of cognitive-behavioral techniques.
Hyperthermia can be seen with:
1) Lithium toxicity
2) Opium withdrawal
3) Malignant neuroleptic syndrome
4) Eclampsia
Malignant neuroleptic syndrome (caused by phenothiazine) is one of the usual causes of hyperthermia in anaesthesia.
Primary herpes simplex virus infection
1) usually occurs after the age of 20.
2) has a slow onset.
3) may be subclinical.
4) lasts for 1 - 2 days.
In many individuals, the primary infection does not produce noticeable symptoms.
Subclinical infections often go unnoticed, though the virus remains dormant in
nerve ganglia, potentially reactivating later.
For a pigmented fissure, what is the best way to diagnose caries?
1) Visual examination
2) Radiographic examination
3) Investigate the area with a round bur
4) Transillumination
Investigating the area with a round bur allows for direct assessment of the fissure and any underlying carious lesions.
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.
Atenolol is a cardioselective beta-blocker used for hypertension management.
The presence of schistocytes in a blood smear is indicative of what condition?
1) DIC
2) Thrombocytosis
3) Genetic clotting disorder
4) Stable hemoglobinopathy
Schistocytes, or fragmented red blood cells, are often observed in patients with disseminated intravascular coagulation (DIC) and indicate mechanical hemolysis.
What fluoride treatment is recommended for a child with a high caries rate?
1) 2,800 ppm toothpaste
2) 5,000 ppm toothpaste
3) Application of 2.2% Duraphat 2 times yearly
4) Application of 2.2% Duraphat 3-4 times yearly
For children with a high caries rate, more frequent applications of fluoride varnish like Duraphat are recommended to provide additional protection.
What is the primary study design to evaluate tetracycline as an adjunct to scaling and root planing for chronic periodontitis?
1) Cohort
2) Non-randomised controlled trial
3) Randomised controlled trial
4) Case-control
A randomized controlled trial (RCT) is the ideal design to assess the effectiveness of a treatment by removing bias and allowing for controlled comparisons.
Which of the following methods of instrument sterilization uses the lowest
temperature?
1) Steam autoclave.
2) Dry heat oven.
3) Ethylene oxide method
4) Glass bead sterilizer.
The ethylene oxide method of sterilization operates at lower temperatures compared to steam autoclaves and dry heat ovens. It is particularly useful for heat-sensitive instruments, as it can effectively sterilize at temperatures around 30-60°C, making it suitable for materials that cannot withstand higher temperatures.
What is the danger zone in dental surgery?
1) The area around the maxilla
2) The region of the face where infections could pass to the cavernous sinus
3) The area around the mandible
4) The region of the neck
The danger zone is a triangular area of the face where infections can spread to the cavernous sinus, posing serious health risks.
Which of the following is NOT a standard precaution recommended to prevent the spread of infection in the dental setting?
1) Hand hygiene
2) Use of personal protective equipment (PPE)
3) Sterilization of reusable instruments
4) Sharing of patient-care items
Standard precautions in the dental setting include hand hygiene, use of PPE, and sterilization of reusable instruments.
What is the correct sequence of events in tooth development?
1) Differentiation of odontoblast, elongation of enamel epithelium, dentine formation then enamel formation
2) Differentiation of odontoblast, dentine formation then enamel formation, elongation of enamel epithelium
3) Elongation of enamel epithelium, differentiation of odontoblast, dentine formation then enamel formation
4) None of the above
ADC Test Answer: 3
The processes in tooth development unfold with the elongation of the enamel epithelium followed by odontoblast differentiation and the sequential formation of dentine and enamel.
Patient received a heavy blow to the right body of the mandible sustaining a fracture there. You should suspect a second fracture is most likely to be present in:
1) Symphysis region
2) Left body of the mandible
3) Left sub-condylar region
4) Right sub-condylar region
ADC Test Answer: 3
Due to the mechanics of jaw fractures, a blow to one side may often result in a corresponding fracture on the contralateral sub-condylar region.
The alpha-1 function post-synaptically at the neuromuscular junction
is responsible for:
1) Smooth muscle contraction
2) Skeletal muscle contraction
3) Cardiac muscle contraction
4) Inhibition of muscle contraction
Alpha-1 receptors mediate the contraction of skeletal muscles.
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.
IN HEALTH EDUCATION PROGRAMME a group of 10 ppl r planning to speak on a topic of common interest. Which is the best ed. Approach
1.panel discussion
2.symposium
3.group discussion
4.workshop
Group discussion because participants get chances to express thier views Idea panel discussion : 4-8 people talk abt a topic in front of large group. symposium:series of speeches on a selected subject, no discussion. group discussion :considered a very effective method of health edu if the group consists of not less than 6 and not more than 20 persons. workshop:usually lasts for few days wher people get together and work in different groups and discuss problem of concern it can be called a problem solving method.
A3 shades of composite resins should be light-cured in increments limited to a
maximum of
1) 0.50mm.
2) 1.00mm.
3) 1.50mm.
4) 2.00mm.
To ensure complete curing and avoid inadequate polymerization, A3 shades should be cured in layers no thicker than 2mm.
The position of the cusps of the maxillary first premolar is:
1) Distally positioned
2) Mesially positioned
3) Centrally positioned
4) Lingually positioned
ADC Test Answer: 2
In occlusion, the cusp tips of the maxillary first premolar are slightly mesially positioned, which affects alignment and functional performance.
Which type of rest is often used for additional support or indirect retention?
1) Primary rest
2) Secondary rest
3) Occlusal rest
4) Cingulum rest
Secondary or auxiliary rests provide additional support and help in maintaining retention in the RPD.
What is the GDC's guideline regarding the use of abbreviations in dental records?
- Abbreviations should be avoided altogether
- Only standardized dental abbreviations should be used
- Abbreviations are acceptable as long as they are legible
- It is up to the dentist's discretion
The GDC advises that abbreviations should be kept to a minimum and only standardized abbreviations should be used to avoid misunderstandings or misinterpretations of the recorded information.
Which type of caries is characterized by a brown or black appearance and is
resistant to caries?
1) Acute caries
2) Chronic caries
3) Arrested caries
4) Incipient caries
Arrested caries are brown or black and become caries-resistant, especially when exposed to fluoride.
The efferent limb to the lower epiglottis is innervated by which
branch of the vagus nerve?
1) Superior laryngeal branch of the vagus nerve (CN 10)
2) Recurrent laryngeal branch of the vagus nerve (CN 10)
3) Inferior laryngeal branch of the vagus nerve (CN 10)
4) Superior laryngeal nerve
The vagus nerve, or cranial nerve X, has several branches that innervate various
structures in the neck and thorax.
The lower epiglottis is one of the structures that is innervated by the
recurrent laryngeal nerve, which arises from the vagus nerve (CN 10). This nerve
is responsible for the movement of the larynx during swallowing and speaking. The other options listed are incorrect because:
1) The superior laryngeal branch of the vagus nerve (CN 10) primarily supplies
the cricothyroid muscle and the mucosal sensory innervation to the upper part of
the larynx, not the lower epiglottis.
2) The inferior laryngeal branch is another term that may refer to the recurrent
laryngeal nerve, but it is less commonly used and can be confusing. The term
"recurrent laryngeal nerve" is more specific and widely recognized.
3) The superior laryngeal nerve is a separate nerve that arises from the vagus
nerve and supplies the upper part of the larynx, including the cricothyroid
muscle and the mucosal sensation of the larynx and pharynx, not the lower
epiglottis.
What should a dentist do if a patient presents with a dental emergency that appears to be the result of abuse or neglect?
1) Treat the emergency and report the incident to the authorities
2) Refuse treatment until the patient provides a satisfactory explanation for the injury
3) Treat the emergency without reporting the incident
4) Report the incident to the authorities and delay treatment until they arrive
In the case of a dental emergency, the dentist should provide immediate care and report the suspicion of abuse or neglect to the authorities.
What is the typical pH of a healthy oral environment?
1) 5.0-5.5.
2) 6.0-6.5.
3) 7.0.
4) 7.5-8.0.
ADC Test Answer: 3
A healthy oral environment has a neutral pH of around 7.0, which helps maintain the integrity of the tooth structure and prevent dental decay.
Which of the following antibiotics shows an incidence of approximately 8% cross-allergencity with penicillins?
1) Bacitracin
2) Erythromycin
3) Cephalexin
4) Vancomycin
Cephalosporins can cause allergic reactions in people with penicillin allergy.
it is generally recommended that those allergic to penicillin avoid cephalosporins all together.
Which type of tumor is characterized by having a "cribriform" or "Swiss cheese" pattern?
1) Acinic cell carcinoma
2) Adenocystic carcinoma
3) Burkitt's lymphoma
4) Pleomorphic adenoma
Adenocystic carcinoma is known for its cribriform pattern and often invades surrounding tissues, including nerve sheaths.
In partial dentures, guiding planes serve to:
1) Aid in balancing occlusion
2) Ensure predictable clasp retention
3) Form a right angle with the occlusal plane
4) Eliminate the need for posterior clasps
ADC Test Answer: 2
Guiding planes provide a surface to help achieve reliable clasp retention, essential for the stability and effectiveness of partial dentures.
Which of the following dental cements is a luting agent that provides adhesion to calcified dental tissues? 1. ZOE cement 2. Silicate cement 3. Zinc phosphate cement 4. Polycarboxylate cement
Dental Material Answer: 4Polycarboxylate cement is a luting agent that provides adhesion to calcified dental tissues
The advantage of the lingual split technique for the extraction of impacted
mandibular third molar teeth is/are:
1) Bone loss is minimal
2) Easy and quick method
3) Tissue trauma is minimal
4) All of the above
The lingual split technique, introduced by Sir William Kelsey Fry, is advantageous because it minimizes bone loss and tissue trauma during the extraction of impacted mandibular third molars. This technique allows for a more conservative approach, preserving surrounding structures while facilitating the removal of the tooth, making it a preferred method in many cases.
Which condition is often associated with an increased risk for periodontal disease?
1) Down syndrome
2) Asthma
3) Hypertension
4) Diabetes
Individuals with Down syndrome have an increased risk of periodontal disease due to factors like hypotonia, which can complicate oral hygiene practices.
What is the primary function of the palatal cusp of a premolar?
1) Incisal guidance.
2) Lateral support.
3) Anterior guidance.
4) Posterior guidance.
ADC Test Answer: 4
The palatal cusp of a premolar primarily serves as a guide for the opposing molar during lateral excursive movements, providing posterior guidance in the occlusion.
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.
Nonselective beta blocker possessing quinidine-like membrane stabilizing effects.
1) pindolol
2) acebutolol
3) sotalol
4) esmolol
Beta-blockers, such as propranolol, labetalol, and pindolol, can have membrane stabilizing effects (eg, quinidinelike effects, Vaughan-Williams class I antiarrhythmic effects).
Which of the following is NOT a requirement for dental records according to the GDC?
1) Records must be clear and concise
2) Records must include financial information
3) Records must be contemporaneous
The GDC does not require financial information to be included in dental records; the focus is on clinical and patient care information.
Diabetic insipidus is due to the lack of 1 Insulin 2 Angiotensin. 3 Aldosterone. 4 A.D.H.
Physiology Answer: 4Diabetic insipidus is due to the lack of ADH
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.
The working time for a polysulfide impression material can be safely and effectively increased by 1. greatly altering the base/accelerator ratio 2. doubling the mixing time 3. adding three drops of water to the base 4. cooling the mixing slab to a temperature above the dew point
Dental Material Answer: 4The working time for a polysulfide impression material can be safely and effectively increased by cooling the mixing slab to a temperature above the dew point
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 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.
The average overall length of the permanent maxillary central incisor is 22.5 mm
Which of the following is NOT a common occupational hazard for dentists and dental staff?
1) Exposure to ionizing radiation
2) Risk of infection from bloodborne pathogens
3) Development of musculoskeletal disorders
4) High risk of developing allergies to dental materials
While dentists and dental staff are indeed at risk of developing allergies to certain dental materials, especially those with latex allergies due to repeated exposure to gloves and other latex products, it is not a common occupational hazard compared to exposure to ionizing radiation from dental x-rays, risk of infection from bloodborne pathogens due to the nature of dental procedures, and the high prevalence of musculoskeletal disorders due to the ergonomic challenges of the work.
The concentration of ketones is increased in body due to: 1. Starvation 2. High fat diet 3. Diabetes mellitus
The smear layer present on the root canal wall after cleaning and shaping is
best removed by using
1) EDTA
2) hydrogen peroxide.
3) chlorhexidine.
4) isopropyl alcohol.
EDTA effectively removes the smear layer, allowing for better canal cleaning and
sealer penetration.
What is the most common type of periodontal charting?
- Probing depths
- Gingival recession
- Tooth mobility
- Furcation involvement
Probing depths are the most commonly recorded periodontal charting measurement.
Which of the following antiviral drugs cannot be given orally?
1) Zidovudine
2) Zalcitabine
3) Acyclovir
4) Iodoxuridine
Idoxuridine acts as an antiviral agent against DNA viruses by inhibiting thymidilate phosphorylase and viral DNA polymerases.
The effect of Idoxuridine results in the inability of the virus to reproduce or to infect/destroy tissue.
This product is available in the following dosage forms:Solution and Ointment
What is the main function of EDTA?
1) Antimicrobial agent
2) Chelating agent
3) Local anesthetic
4) Antiseptic
EDTA is a chelating agent that helps in negotiating sclerosed canals and dissolving inorganic components of the smear layer.
What’s the percentage of tooth erosion in 6-year-olds and 15-year-olds in the UK?
1) 5-10% and 15-20%
2) 5-52% and 15-27%
3) 10-30% and 20-40%
4) 15-25% and 25-35%
Studies indicate that tooth erosion affects a significant percentage of children, with varying rates between different age groups.
Afet tooth eruption in permanent teeth the apex is fully developed after 2-3 years
You notice a lesion on the labial alveolar mucosa of the lower right lateral incisor tooth of one of your patients and decide to take a biopsy. Which nerve would require local anesthesia in order to carry out a pain-free biopsy?
1) The lingual nerve
2) The buccal nerve
3) The incisive nerve
4) The mental nerve
The incisive nerve would require local anesthesia in order to carry out a pain-free biopsy.
What is the depth of topical anesthesia?
1) 1 mm
2) 2 mm
3) 3 mm
4) 4 mm
Topical anesthesia typically penetrates to a depth of about 2 mm, providing localized pain relief for procedures involving the mucosa.
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.
To prolong the setting time of glass ionomer cement (GIC), one can:
1) Cool down the mixing slab
2) Increase the amount of powder
3) Add more water
4) Decrease mixing time
ADC Test Answer: 1
Cooling the slab on which GIC is mixed can extend the setting time; however, this might negatively affect the cement's strength.
A patient presents with dental injuries that are inconsistent with the reported mechanism of injury. What should the dental professional do?
1) Confront the patient about the discrepancies
2) Document the findings and report to authorities
3) Refer the patient to a psychologist
4) Ignore the inconsistencies
Inconsistent injuries should be documented and reported, as they may indicate abuse.
The type of assertion that can be used when another person is involved in a
situation is:
1) Basic assertion.
2) Discrepancy assertion.
3) Empathic assertion.
4) Negative feelings assertion.
Empathic assertion is the type of assertion that can be used when another person
is involved in a situation. This type of assertion involves expressing one's
thoughts, feelings, and needs while also considering and acknowledging the
thoughts and feelings of the other person. It aims to create a balance between
assertiveness and empathy, allowing for effective communication and
understanding between both parties.
Glycolysis occurs in: 1. Cytoplasm 2. Mitochondrion 3. Both In cytoplasm and mitochondria 4. Only in presence of O2
Biochemistry Answer: 1Glycolysis occurs in Cytoplasm
Correction of a lingual crossbite of tooth 1.2 has the best long-term prognosis if 1.2 is:
1) Ideally inclined, with 5% overbite.
2) Ideally inclined, with 50% overbite.
3) Lingually inclined, with 5% overbite.
4) Lingually inclined, with 50% overbite.
Orthodontics Answer: 4Lingual inclination combined with significant overbite allows better stabilization of tooth position after correction.
Most potent opioid:
1) Fentanyl
2) Alfentanil
3) Buprenorphine
4) Sufentanil
Sufentanil is the most potent opioid, being 500-1,000 times more potent than morphine.
What is more likely to happen to an interproximal composite filling rather than amalgam?
1) Fracture
2) Polymerization shrinkage
3) Marginal leakage
4) Discoloration
Composite materials are more prone to polymerization shrinkage, which can lead to gaps and sensitivity compared to amalgam.
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 purpose of a chisel in oral surgery?
1) To split teeth
2) To remove bone
3) To elevate soft tissue
4) To luxate teeth
A chisel is used in oral surgery to cut or remove bone, often during procedures such as apicoectomy or osteotomy.
In an average child the mixed dentition period is from 1. 10 years to 25 years 2. 4 yrs to 12 yrs 3. 8 yrs to 17 yrs 4. 6 yrs to 13 years
Dental Anatomy Answer: 4In an average child the mixed dentition period is from 6 yrs to 13 y
What is the primary concern when treating geriatric patients with
cognitive impairment?
1) The absence of caries
2) Comfortable chair position
3) Financial considerations
4) Behavior management
Behavior management is crucial when treating geriatric patients with cognitive impairment as it helps in ensuring their cooperation and reducing anxiety, which can significantly affect the quality of care provided.
Which type of periodontitis is most likely to require antibiotic
treatment?
1) Chronic periodontitis
2) Aggressive periodontitis
3) Localized aggressive periodontitis (LAP)
4) Necrotizing periodontitis
Localized aggressive periodontitis (LAP) is characterized by rapid destruction of periodontal tissues, particularly in adolescents and young adults. It is associated with specific bacterial pathogens, particularly Aggregatibacter actinomycetemcomitans, and often requires systemic antibiotic therapy in addition to scaling and root planing to control the infection effectively. Chronic periodontitis and necrotizing periodontitis may also benefit from antibiotics, but LAP is most likely to necessitate their use due to its aggressive nature and bacterial etiology.
Which nerve fibers are responsible for pulpal pain?
1) A-alpha fibers
2) A-beta fibers
3) Delta fibers
4) C fibers
Delta fibers are responsible for sharp, stabbing pain associated with pulpal pain, while C fibers transmit dull, aching pain.
Which of the following drugs is known for potentially causing gingival hyperplasia?
1) Phenytoin
2) Aspirin
3) Metoprolol
4) Clindamycin
Phenytoin is associated with gingival hyperplasia as a side effect, which is characterized by the overgrowth of gum tissue.
What is the mean, mode, and median?
1) Mean is the most frequent value, mode is the average, median is the middle value
2) Mean is the average, median is the middle value, mode is the most frequent value
3) Mean is the middle value, mode is the average, median is the most frequent value
4) All are the same
The mean is calculated by averaging all values, the median is the middle value when arranged in order, and the mode is the value that appears most frequently in a dataset.
What can be a sign of dental phobia?
1) Occasional apprehension before visits
2) Excessive avoidance of dental care
3) Pleased demeanor when discussing dental procedures
4) Knowledge of dental health
Dental phobia often manifests as a persistent and overwhelming fear that leads to significant avoidance of dental treatment.
Which of the following is NOT a component that reduces cariogenicity?
1) Sucrose
2) Galactose
3) Lactose
4) Fermented carbohydrates
Fermented carbohydrates are not listed as reducing cariogenicity.
What is a potential use of dental records in forensic dentistry?
1) To determine the patient's insurance coverage
2) To identify a dead or missing person
3) To track treatment costs
4) To evaluate staff performance
Dental records can provide antemortem information that assists forensic odontologists in identifying deceased individuals.
What is the dentist's role in identifying signs of domestic violence in a patient?
1) To ask the patient directly if they are being abused
2) To recognize and document physical and behavioral signs of abuse
3) To provide counseling services
4) To provide legal advice
The dentist's role involves recognizing and documenting any physical injuries or behavioral indicators that may suggest abuse.
The primary purpose of surgical therapy for the treatment of periodontitis is to
1) apically position the flap.
2) eliminate periodontal pockets.
3) remove the ulcerated epithelium of the periodontal pocket.
4) improve access for removal of local etiologic factors.
Surgical therapy, such as flap surgery, aims to expose root surfaces and deep
periodontal pockets.
This improves visibility and access for scaling, root planning, and debridement,
which are critical for removing the etiologic factors of periodontitis (e.g.,
plaque and calculus.
Eliminating these factors allows tissues to heal and reduces pocket depths.
What is the minimum platelet level at which dental extractions can be safely performed?
1) 50 x 109/L
2) 75 x 109/L
3) 100 x 109/L
4) 150 x 109/L
Surgical procedures can be performed if platelet levels are above 50 x 109/L.
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.
What is the most effective way to handle dental anxiety in special needs patients?
1) Sedation
2) Distraction techniques
3) Restraints
4) Forceful behavior
Distraction techniques, such as using music or visuals, can be very effective in managing anxiety without the risks associated with sedation or restraints.
What is force applied per unit area?
1) Strain
2) Stress
3) Couple
4) Center of resistance
SOLUTION Stress is the force applied per unit area while strain can be defined as the internal distortion per unit area.
Stress and strain are inter-related terms as stress is an external force acting upon a body while strain is the resultant of stress on that body.
Strain can be expressed in the form of a change in either the external dimension or internal energy of the body.
A child with autism may exhibit:
1) Repetitive actions and sensitivity to light and noise
2) Social withdrawal and lack of eye contact
3) High intelligence and advanced verbal skills
4) All of the above
Autism spectrum disorder (AS4) is characterized by a range of behaviors, including repetitive actions such as hand-flapping or rocking, and sensory sensitivities like being overly sensitive to light and noise. While children with ASD can have varying levels of intelligence and verbal skills, the core features of the disorder are the presence of repetitive behaviors and sensory issues, which are crucial for diagnosis and understanding the condition's impact on daily functioning.
All of the following drugs cross the placenta except?
1) Phenytoin
2) Diazepam
3) Morphine
4) Heparin
Heparin Heparin does not the cross the placenta. Hence its safe for use in pregnant patients who need anticoagulation.
Suppuration results from the combined action of several factors. Which of the following is not one of them?
1) Necrosis
2) Presence of lymphocytes
3) Collection of neutrophils
4) Accumulation of tissue fluid
Neutrophils primarily mediate the inflammatory response and pus formation, while lymphocytes are more involved in chronic inflammation, not in the acute pus production.
What is the GDC's requirement for the storage of patient records?
- They must be kept in a secure, locked cabinet
- They must be kept in a fireproof safe
- They must be kept in a format that is easily accessible and understandable
- They must be kept in a location that is accessible only to the dentist
The GDC requires that patient records be kept in a format that is easily accessible and understandable to ensure that dental professionals can provide effective care based on accurate and up-to-date information.
Overdrying after acid etching before bond application causes:
1) Micro leakage.
2) Nano shrinkage.
3) Gaping.
4) Secondary caries.
ADC Test Answer: 2
Overdrying dentin surfaces after acid etching can lead to nano shrinkage, which can impair the bond strength of the adhesive and result in clinical problems.
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.
Which of the following is a key step in preparing a tooth for a stainless steel crown?
1) Reducing the occlusal surface.
2) Placing a rubber dam.
3) Applying a sealant.
4) Using a diamond bur to prepare the crown.
Before placing a stainless steel crown, the occlusal surface needs to be reduced to ensure proper fit and prevent interference with opposing teeth.
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.
What is the primary risk of chisel and mallet technique for bone removal?
1) Damage to the adjacent teeth
2) Increased risk of infection
3) Increased risk of bone fracture
4) Increased risk of bleeding
The chisel and mallet technique requires careful execution as it can lead to fractures in the jaw bone if not performed correctly.
What 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.
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.
In concentrations usually applied for sterilization purposes, ethylene oxide is preferable to formaldehyde becuase it is more penetrating
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 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.
Which one of the following is true about oral hairy leukoplakia?
1) Associated with HIV virus infection and is commonly seen on the dorsal of the tongue
2) Associated with HIV virus infection and is commonly seen on the lateral side of the tongue
3) Usually caused by Candida species
4) Always associated with trauma to the lateral side of the tongue
ADC Test Answer: 2
Oral hairy leukoplakia is typically associated with Epstein-Barr virus and is most commonly found on the lateral borders of the tongue in immunocompromised individuals.
First sign of complication of anaesthesia:
1) Tachycardia
2) Bradycardia
3) Hypertension
4) Convulsions
Tachycardia is often the first sign of many complications seen in anaesthesia.
The sulphur containing amino acid is: 1. Cystine 2. Proilne 3. Arginine 4. Isoleucine
Biochemistry Answer: 1Cystine is sulphur containing amino acid
What type of dental chair is most suitable for a patient with severe mobility issues?
1) A standard chair with a transfer board
2) A chair with power-operated height and tilt adjustments
3) A chair designed for pediatric patients
4) A chair with wheels for easy movement
A chair with power-operated height and tilt adjustments allows for greater accessibility and comfort for patients with severe mobility issues, making it easier to perform necessary dental procedures.
Which of the following cements bonds to tooth structure, has an anticariogenic effect, has a degree of translucency and does not irritate the pulp? 1. Polycarboxylate cement 2. Resin cement 3. Silicate cement 4. Glass Ionomer cement
Dental Material Answer: 4GIC has an anticarious anticariogenic effect, It binds to tooth structure, Does not irritate the pulp tissue
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.
Which class of drugs has been implicated in the development of thrombotic and bleeding complications in patients with disseminated intravascular coagulopathy (DIC)?
1) NSAIDs
2) Vitamin K antagonists
3) ACE inhibitors
4) Statins
NSAIDs can exacerbate bleeding complications by affecting platelet function and are linked to increasing the risk of angioedema.
Apicoectomy is CONTRAINDICATED when
1) periodontal disease causes inadequate bony support.
2) there is a granuloma at the apex of the tooth.
3) more than one tooth is involved
4) the cortical plate is more than 4mm thick.
An apicoectomy is contraindicated in situations where the periodontal support is compromised:
- Periodontal disease causes inadequate bony support: If the tooth has significant periodontal disease leading to loss of supporting bone, the prognosis for the tooth after an apicoectomy is poor. The lack of adequate bony support can lead to tooth mobility and failure of the procedure.
- Granuloma at the apex: This is not a contraindication; in fact, granulomas are often the reason for performing an apicoectomy.
- More than one tooth involved: This is not a direct contraindication; it depends on the specific situation of each tooth.
- Cortical plate thickness: The thickness of the cortical plate is not a standard contraindication for apicoectomy.
- Diabetes: While diabetes can complicate healing, it is not an absolute contraindication for the procedure.
What is the purpose of a pre-operative visit for an anxious patient?
1) To administer sedatives
2) To discuss and explain the treatment plan in detail
3) To perform a thorough medical evaluation
4) To complete financial paperwork
A pre-operative visit allows the dentist to build trust, answer questions, and prepare the patient mentally for the upcoming procedure, which can significantly reduce anxiety.
Zinc phosphate cement powder contains zinc oxide, magnesium oxide, bismuth oxide
Common symptoms of hypertension include headaches, dizziness, and epistaxis (nosebleeds).
Which ion acts as a second messenger?
1) Sodium
2) Potassium
3) Calcium
4) Magnesium
Calcium ions serve as important second messengers in various cellular signaling pathways, facilitating communication within and between cells.
Which of the following is common to all forms of hemorrhagic shock?
1) Sepsis.
2) Hypovolemia
3) Impaired tissue perfusion.
4) Vasoconstriction.
Hemorrhagic shock results in inadequate oxygen delivery to tissues due to reduced blood volume.
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.
Cleft lip is caused by the failure of which of the following processes to fuse?
1) Maxillary.
2) Maxillary and lateral nasal.
3) Palatine.
4) Maxillary and palatine
Oral Medicine and Oral Pathology Answer: 2Cleft lip occurs when the maxillary and lateral nasal processes fail to fuse during embryogenesis, leading to an incomplete upper lip.
A patient reveals to the dental hygienist that they are being physically abused at home. What should the hygienist do first?
1) Encourage the patient to confront the abuser
2) Report the abuse to the authorities
3) Offer to provide the patient with resources for help
4) Keep the information confidential
The hygienist is a mandated reporter and must report any disclosures of abuse to ensure the patient's safety.
Is Myasthenia Gravis and Grave's disease type 2 or type 5 hypersensitivity reactions?
1) Type 2
2) Type 5
3) Both
4) Neither
Both Myasthenia Gravis and Grave's disease are classified as type 2 hypersensitivity reactions, mediated by IgG and IgM antibodies.
Local anaesthetic agent which has antimuscarinic action on heart muscle receptors is:
1) Procaine
2) Cocaine
3) Chloroprocaine
4) None of the above
Cocaine is a sympathomimetic (and thus antimuscarinic) local anaesthetic and thus adrenaline should not be added to it.
The artery chiefly responsible for blood supply to the mandible is inferior alveolar artery
What is the effective way to prevent the spread of infection during dental procedures?
1) Use a single-use needle
2) Sterilize instruments thoroughly
3) Disinfect surfaces before and after procedures
4) All of the above
Multiple strategies are essential for infection control in dental settings, including using sterile instruments, disinfecting surfaces, and employing single-use items to prevent cross-contamination.
Apart from composites and ceramics, another material that could be copy milled easily and inexpensively is:
1) Molybdenum
2) Germanium
3) Titanium
4) Chromium
Fabrication of ceramics and metals like titanium that are difficult to cast, is done by CAD-CAM process and copy milling.
On inspection of the lateral border of the tongue at the base, which structure would you expect to find?
1) Filiform papillae
2) Fungiform papillae
3) Circumvallate papillae
4) Lymph nodes
ADC Test Answer: 3
Circumvallate papillae are located at the posterior part of the tongue and are involved in taste sensation.
Of the following, the most difficult impaction to extract is:
1) Mesioangular
2) Vertical
3) Distoangular
4) Horizontal
Distoangular impactions of mandibular molars are often considered the most challenging to extract due to their position and the amount of bone that must be removed to access the tooth. The angulation of the tooth can complicate the extraction process, requiring more extensive surgical intervention. Additionally, the removal of bone in this area can weaken the ramus of the mandible, increasing the risk of fracture during extraction.
Which of the following is NOT a consideration for endodontic treatment in
the elderly?
1) Diminished pulp vitality
2) Reduced healing capacity
3) Systemic health conditions
4) All of the above are considerations.
While systemic health conditions are a consideration, endodontic
treatment can still be successful in the elderly with careful management and
patient selection.
What is the primary concern when integrating gerodontology into general
dental practice?
1) Lack of specialized training
2) Inadequate chairside manner
3) Difficulty with insurance reimbursements
4) Patient compliance with treatment
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.
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 legal status of informed consent in an emergency situation?
1) It is not required
2) It is always required
3) It is required unless the patient is unconscious
4) It is required unless the treatment is lifesaving
In an emergency where immediate treatment is necessary to save a patient's life or prevent serious harm, informed consent is not required due to the urgent nature of the situation.
The immunoglobulin secreted in Bile is 1. IgG 2. 1gM 3. IgA 4. IgE
Biochemistry Answer: 3The immunoglobulin secreted in Bile is IgA
According to Angle, the key to normal occlusion in adults is the anteroposterior relationship. His description of teeth relationships in normal occlusion remains a fundamental observation. Angles observations are based on which teeth that are most reliable to understand occlusion
1) First molars and canines
2) First molars and first Premolars
3) Canines and first Premolars
4) First molars and central incisors
SOLUTION The mesial incline of the upper canine occludes with the distal incline of the lower [canine]; the distal incline of the upper canine occludes with the mesial incline of the buccal cusp of the lower first premolar.
Thymol is preservative used for:
1) Halothane
2) Isoflurane
3) Desflurane
4) Enflurane
Halothane can be decomposed by light so stored in amber colour bottles and contains thymol 0.01 % as preservative.
When a tooth is replanted after avulsion and presents no pain, the most likely diagnosis is:
1) External resorption
2) Internal resorption
3) No significant damage
4) Pulp necrosis
ADC Test Answer: 2
Internal resorption may occur in avulsed teeth, especially if they were outside the socket for an extended period, even without presenting immediate pain.
What is the white line in Winter's classification of third molar impaction?
1) Indicates the level of the tooth's root apex
2) Indicates the amount of bone covering the tooth
3) Indicates the difference in occlusal level of 1st and 2nd molars
4) Indicates the depth of the tooth below the alveolar crest
The white line in Winter's classification runs touching the occlusal surfaces of the 1st and 2nd molars and extends posteriorly, indicating the occlusal plane and the level of the impacted tooth.
What is the 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.
Which of the following procedures typically requires written informed
consent?
1) Routine dental examination
2) Tooth extraction
3) Periodontal probing
4) Radiographic imaging
Tooth extraction is considered an invasive and irreversible procedure, thus requiring written informed consent.
Elgiloy arch wire is a 1. Cobalt chromium nickel alloy 2. Gold alloy 3. Optical fiber arch wire 4. Beta titanium arch wire
Dental Material Answer: 1Elgiloy arch wire is a Cobalt chromium nickel alloy