Dentist Abroad
Ankylosed primary second molars may clinically exhibit
1) percussion sensitivity.
2) infra-occlusal position.
3) temperature sensitivity.
4) buccolingual displacement.
Ankylosed teeth fail to erupt with the adjacent teeth, leading to an infra-occlusal appearance as the jaw grows.
What is the significance of the tail of an enamel rod being less mineralized
than the head?
1) It helps in the flexibility of the tooth
2) It provides a site for tooth coloration
3) It aids in nutrient absorption
4) It is more susceptible to decay
The tail of an enamel rod has less mineral content, making it more prone to demineralization and decay compared to the head.
What is the most appropriate action for a dentist to take if they suspect a
patient with a disability is being abused or neglected?
1) Report the suspicion to the patient's caregiver
2) Report the suspicion to the patient's guardian
3) Report the suspicion to the authorities
4) Ignore the suspicion due to the patient's disability
Dentists are mandated reporters for all forms of suspected abuse or
neglect, including cases involving patients with disabilities. The most
appropriate action is to report the suspicion to the authorities, such as Adult
Protective Services or Child Protective Services, depending on the patient's age
and the nature of the suspicion.
Which of the following is not an intravenous anaesthetic agent?
1) Cyclopropane
2) Barbiturates
3) Propofol
4) Etomidate
Cyclopropane is not used as an intravenous anaesthetic agent. It is an inhalational anaesthetic.
Infantile Osteopetrosis as a genetic condition can result into the following
options except?
1) Fractures
2) Hearing loss
3) Vision problems
4) Peeked nose
Infantile Osteopetrosis is a genetic condition that causes abnormal bone growth and density. It can lead to various complications such as fractures, hearing loss, and vision problems. However, a "peeked nose" is not a known symptom or complication of this condition. Therefore, the correct answer is "Peeked nose" as it is not associated with Infantile Osteopetrosis.
What are the main categories of dental records? 1) Diagnostic, treatment, and financial 2) Medical, dental, and surgical 3) Administrative, clinical, and radiographic 4) Patient, treatment, and billing
Dental Records Answer: 3Dental records are generally categorized into three main types: administrative, which include patient information and appointment details; clinical, which encompass the patient's medical and dental history, treatment notes, and progress; and radiographic, which are the imaging studies such as x-rays used to diagnose and plan treatment.
What is the advantage of using electronic patient records over paper records?
- They take up less physical space
- They are more easily accessible and less prone to loss
- They are more difficult to alter
- They are less expensive
Electronic records can be accessed and retrieved more quickly and are less likely to be misplaced or damaged than paper records.
What is the primary function of a dental core?
1) Aesthetic enhancement
2) Support for a crown
3) Tooth whitening
4) Root canal treatment
A dental core provides support for a crown, especially when there is significant tooth structure loss.
The gas with greatest solubility in blood:
1) Nitrous oxide
2) Nitrogen
3) Oxygen
4) Hydrogen
Although the solubility of nitrous oxide in blood is less than other inhalational agents its solubility is 35 limes more than nitrogen and 15 times more than oxygen
The chemical nature of bacterial exotoxins is, a lipopolysaccharide complex
What percentage of children in the UK have caries?
1) 30%
2) 43%
3) 57%
4) 70%
According to the Children’s Health Survey 2003, 43% of 5-year-olds in the UK had experienced dental caries.
If a cut is made below the cricoid cartilage, which structure might be injured?
1) Inferior laryngeal nerve
2) Recurrent laryngeal nerve
3) Superior laryngeal nerve
4) Both A and B
The recurrent laryngeal nerve runs below the cricoid cartilage and
supplies all the intrinsic laryngeal muscles except for the cricothyroid muscle,
which is supplied by the superior laryngeal nerve. Inferior laryngeal nerve (which supplies the cricothyroid muscle) Recurrent laryngeal nerve (which supplies all other intrinsic laryngeal
muscles except the cricothyroid muscle)
What type of reaction does an amalgam restoration cause?
1) Type I hypersensitivity
2) Type II hypersensitivity
3) Type IV hypersensitivity
4) Anaphylactic reaction
Amalgam restorations can lead to type IV hypersensitivity reactions, which are delayed and mediated by T lymphocytes rather than antibodies.
Which type of rest is seated on the incisal edge?
1) Cingulum rest
2) Incisal rest
3) Occlusal rest
4) Auxiliary rest
An incisal rest is specifically designed to be seated on the incisal edge of a tooth, typically of the mandibular canine.
Which nerve fibers are responsible for pulpal pain?
1) A-alpha fibers
2) A-delta fibers
3) C fibers
4) Both 2 and 3
A-delta fibers are responsible for sharp, stabbing pain associated with pulpal pain, while C fibers transmit dull, aching pain.
What is the correct order for removing PPE after treating a patient?
1) Gloves, mask, gown
2) Gown, gloves, mask
3) Mask, gown, gloves
4) Gloves, gown, mask
The correct order for removing PPE is to first remove and dispose
of the gloves, then the gown, and finally the mask to prevent contact with
potentially contaminated surfaces.
Which of the following is the most commonly associated benign parotid gland tumor?
1) Mucoepidermoid carcinoma
2) Pleomorphic adenoma
3) Adenocystic carcinoma
4) Acinic cell carcinoma
Pleomorphic adenoma, also known as a benign mixed tumor, is the most common type of parotid gland tumor and represents around 75% of all cases.
What is the effect on local anesthetic when used with sodium bicarbonate?
1) Increases speed and quality of anaesthesia
2) Decreases diffusion of the anaesthetic drug
3) Causes rapid elimination of the local anaesthetic
4) Decreases speed and quality of anaesthesia
The speed of onset of Anaesthesia is raised by Sodium bicarbonate and further enhances its quality by elevating the intensity and duration of block.
How should patient records be organized in a traditional paper filing system?
- Alphabetically by patient surname
- Chronologically by appointment date
- By the amount paid for services
- By the dentist who treated the patient
For easy retrieval, patient records are typically organized alphabetically, usually by the patient's last name.
What are dental records primarily used for?
1) For diagnosing dental problems
2) For treatment planning and patient management
3) For identification in forensic cases
4) All of the above
Dental records serve multiple purposes in dentistry. They are used for diagnosing dental problems based on past treatments and conditions. They are also essential for treatment planning, as they document a patient's dental and medical history, which helps dentists determine the best course of action for their care. Additionally, dental records can be used to identify individuals in forensic cases, particularly when other methods of identification are not possible.
What is the most common failure of a Maryland bridge?
1) Fracture of the pontic
2) Retention failure
3) Caries at the abutment teeth
4) Periodontal disease
Retention failure is the most common problem associated with Maryland bridges, often due to inadequate bonding to the enamel.
An orthopantomogram (OPG) and a PA (posteroanterior) mandible X-ray are essential radiographic views for diagnosing mandibular fractures and determining management strategies.
Which of the following is NOT a valid reason for a patient to refuse
informed consent?
1) Fear of pain
2) Lack of financial resources
3) Religious beliefs
4) Desire for a second opinion
While financial concerns may influence a patient's decision, they are not a valid reason for refusing informed consent. The other options (fear, religious beliefs, and desire for a second opinion) are all valid reasons for a patient to refuse or seek further information before consenting to treatment.
All of following are effects of being unassertive, except:
1) Having low self-esteem.
2) Becoming aggressive.
3) Having a lack of purpose.
4) Developing social anxiety.
Being unassertive can lead to various negative effects, such as having low self-esteem, developing social anxiety, and having a lack of purpose. However, becoming aggressive is not typically associated with being unassertive. In fact, individuals who are unassertive may tend to avoid confrontation and conflict, which is the opposite of aggression.
A cyst at the apex of an upper central incisor measuring 1 cm in diameter is visualized in radiograph and confirmed by aspiration biopsy; which method of treatment would you consider?
1) Extraction of the central incisor and retrieving the cyst through the socket
2) Exteriorizing the cyst through the buccal bone and mucosa
3) Making a mucoperiosteal flap and removing the cyst through an opening made in the alveolar bone, followed by tooth removal.
4) Making a mucoperiosteal flap and removing the cyst through an opening made in the alveolar bone, followed by endodontic treatment.
ADC Test Answer: 4
The best approach is to create a mucoperiosteal flap, remove the cyst through an opening in the alveolar bone, and then perform endodontic treatment.
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.
What is the role of SmartConsent in informed consent?
1) It is a legal requirement for all medical procedures
2) It is a technology that standardizes and personalizes the consent process
3) It replaces the need for healthcare professionals to communicate with
patients
4) It is a form of anesthesia used in dental procedures
SmartConsent is a tool that helps healthcare providers communicate
complex medical information effectively to patients, aiding in the informed
consent process.
What 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.
Laminar flow is mainly dependent on:
1) Density
2) Viscosity
3) Solubility
4) Molecular weight
Laminar flow mainly depends on viscosity of gas while turbulent flow is more dependent on density.
Which muscles are primarily used in swallowing?
1) Masseter and temporalis
2) Genioglossus and palatoglossus
3) Buccinator and orbicularis oris
4) Sternocleidomastoid and trapezius
The genioglossus and palatoglossus muscles play significant roles in the swallowing process by controlling the position of the tongue and the soft palate.
Which of the following factors most significantly influences the oral health
of the geriatric population?
1) Socioeconomic status
2) Age
3) Gender
4) Location
Socioeconomic status can impact access to dental care, education about oral health, and the ability to afford dental treatments, influencing the overall oral health of elderly individuals.
What is the first step in the "Tell-Show-Do" technique for explaining a dental procedure to an anxious patient?
1) Show the patient what will happen
2) Describe the sensation the patient might feel
3) Tell the patient what you are going to do
4) Perform the procedure
The Tell-Show-Do technique involves explaining the procedure in simple terms, demonstrating it with a model or the patient's hand, and then performing the actual procedure.
A patient on diuretics may experience which oral side effect? 1) Xerostomia (dry mouth) 2) Gingival hyperplasia 3) Stomatitis 4) Facial swelling
Pathology and Medicine Answer: 1Diuretics can lead to xerostomia, commonly observed in patients on long-term antihypertensive therapy.
What is the purpose of a biosafety cabinet in a dental laboratory?
1) To provide a sterile work environment
2) To protect the technician from inhaling dust
3) To prevent cross-contamination
4) To store sterile materials
A biosafety cabinet provides a controlled environment with laminar
airflow to protect the technician and the materials from cross-contamination
during procedures involving infectious materials.
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 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.
Morphine withdrawal is characterized by all except
1) Miosis
2) Yawning
3) Lacrimation
4) Diarrhea
Withdrawal of morphine is associated with marked drug-seeking behavior.
Physical manifestations of abstinence are - lacrimation, sweating, yawning, anxiety, fear, restlessness, gooseflesh, mydriasis, tremor, insomnia, abdominal colic, diarrhea, dehydration, rise in BP, palpitation and rapid weight loss.
Delirium and convulsions are not a characteristic feature (contrast barbiturates) and are seen only occasionally.
Cardi-ovascular collapse and fatality are rare if supportive measures are instituted.
A patient with a recent complete denture has an ulcer in the buccal sulcus. What is the likely cause?
A. Incorrect occlusion
B. Denture stability
C. Overextended flange
D. Material reaction
An ulcer in the buccal sulcus of recent denture wearers is often a result of overextended denture flanges irritating the soft tissues, leading to ulceration.
What is the most common type of dental crown used in posterior teeth?
1) All-ceramic crown
2) Porcelain-fused-to-metal crown
3) Resin crown
4) Gold crown
Porcelain-fused-to-metal crowns are commonly used for posterior teeth due to their strength and aesthetic appearance.
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 fracture is most likely to lead to meningitis?
1) Le Fort 1
2) Le Fort 2
3) Le Fort 3
4) Zygomatic
Le Fort 3 fractures involve the craniofacial skeleton extensively and can disrupt the dura mater, increasing the risk of infection and potentially leading to meningitis.
Which type of patient is most likely to benefit from pre-operative sedation?
1) A patient with no previous dental experience
2) A patient with a high level of anxiety related to dental treatment
3) A pediatric patient
4) A patient who prefers general anesthesia
Patients with significant anxiety may benefit greatly from pre-operative sedation to make their experience more comfortable.
Which of the following is used in the treatment of meningococcal meningitis in patients allergic to penicillin?
1) Ciprofloxacin
2) Teicoplanin
3) Meropenem
4) Chloramphenicol
Pharmacology Answer: 4
Treatment of meningococcal meningitis: In case of penicillin resistance, third generation cephalosporins should be used ( Ceftriaxone / CefotaximeIn case of penicillin / cephalosporin allergy, Chloramphenicol is used
Drug of choice – Penicillin G
Glucose can be synthesised from Glyerol, Acetoacetate, Lactic acid
What percentage of adults in the UK are alcoholics?
1) 3%
2) 5%
3) 10%
4) 15%
Approximately 5% of adults in the UK are classified as alcoholics, indicating a significant public health concern.
Which type of defect is most prevalent?
1) 1-wall defect
2) 2-wall defect
3) 3-wall defect
4) None of the above
One-wall defects, also known as infrabony defects, are indeed the most common type of osseous defects found in periodontal disease. These defects are characterized by the loss of alveolar bone on one side of the tooth root, leaving a bony depression or "cup" that can harbor plaque and bacteria, contributing to the progression of periodontal disease.
A diastema between two maxillary central permanent incisors could be associated
with the followings, EXCEPT
1) a mesiodens.
2) a congenital absence of permanent maxillary lateral incisors.
3) a large labial frenum.
4) adenomatoid odontogenetic tumour
Adenomatoid odontogenic tumors are generally not linked to diastemas; other options can contribute to spacing.
Where should you ideally place your finger support when performing operative treatment in the oral cavity?
1) Tooth
2) Gingiva
3) Cheek
4) Chin
5) Lip
Supporting your hand on a tooth provides a stable base for performing precise dental procedures and reduces the risk of accidental injury to soft tissues.
Which of the following is a lifestyle factor that can modify the severity of hypertension? 1) Genetic predisposition 2) Physical inactivity 3) Age 4) None of the above
Pathology and Medicine Answer: 2Physical inactivity, along with factors like obesity and high sodium intake, can worsen hypertension.
Apoptosis is suggestive of?
1. liquifaction degeneration
2 coagulation necrosis
3 neo angiogenesis
4 eithelial dysplasia
Cells die by one of two mechanisms – necrosis or apoptosis • Two physiologically different processes – Necrosis – death by injury – Apoptosis – death by suicide Appoptosis: Disintegration of cells into membrane-bound particles that are then eliminated by phagocytosis or by shedding.
What is the typical requirement for informed consent in dental tourism?
1) Written consent from the patient's regular dentist
2) Written consent from the patient
3) Consent from the patient's guardian if under 18
4) Verbal consent is sufficient
Informed consent remains essential in the context of dental
tourism, and patients should receive the same standard of care and information
as they would in their home country.
Ketamine is contraindicated in:
1) Hypertension
2) Raised intracranial tension
3) Raised intraocular tension
4) All of the above
Rapid induction of anaesthesia occurs with which of the following anaesthetic:
1) Isoflurane
2) Halothane
3) esflurane
4) Sevoflurane
Ketamine raises both systolic and diastolic blood pressures and is thus contraindicated in hypertension.
What is the dentist's evaluation of a patient's general health and appearance part of?
- Medical history
- Dental history
- Informed consent
- Treatment plan
The dentist's evaluation of a patient's general health and appearance is a critical component of the medical history, which informs the treatment approach.
Selective medium for streptococcus mutans?
1 mac conkey medium
2 mitis salivarius bacitracin agar
3 neutrient agar
4 tellurite medium
Colonies of E. coli serotype O157:H7 appear on Mac Conkey Sorbitol Agar as colourless colonies non-sorbitol fermenter. Others E. coli, sorbitol fermenters, give red colonies and gram-negative non-sorbitol fermenters appear translucent.
Which of the following forces best accomplish orthodontic tooth movement?
1) Heavy and continuous
2) Heavy and intermittent
3) Light and continuous
4) Light and intermittent
SOLUTION Light and continuous
Use of continuous light force is recommended to be applied for adult group of patient rather than intermittent force as applied by removable appliance.
with normal biologic functioning. In adult due to heavy force teeth may devitalize because the opening into the tooth (apical foramen) is smaller and blood vessels can be easily disrupted.
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.
What is TRUE in regards to osteogenesis imperfecta?
1) Manifests with blue sclera
2) May be associated with deafness
3) Sex-linked disorder of bones that develop in cartilage
4) All of the above
ADC Test Answer: 1
Osteogenesis imperfecta is characterized by fragile bones, blue sclera due to thin collagen in the eye, and may also have associations with hearing loss.
The ingredient of dental waxes that is extremely hard, has a high melting temperature, is added to decrease flow at oral temperatures and contributes to glossiness of the waxes is 1. paraffin 2. gum dammar 3. gutta percha 4. carnauba
Dental Material Answer: 4Carnauba is added to decrease flow at oral temperatures and contributes to glossiness, is extremely hard, has a high melting temperature
The first teeth to erupt in the dental arches of the human being are the, primary 1. mandibular cuspids 2. maxillary central incisors. 3. mandibular central incisors 4. maxillary first molars
Dental Anatomy Answer: 3The first teeth to erupt in the dental arches of the human being are the, primary mandibular central incisors
What is the primary focus of the General Dental Council (GDC) regarding record keeping?
1) Financial management
2) Patient care and safety
3) Marketing strategies
4) Staff training
The GDC emphasizes the importance of maintaining accurate records to ensure high standards of patient care and safety.
What is the primary mechanism by which S. mutans contributes to the
formation of dental caries?
1) Production of lactic acid
2) Formation of dental plaque
3) Secretion of hydrogen sulfide
4) Breakdown of collagen in dentin
S. mutans produces glucosyltransferases that convert dietary sugars into extracellular polysaccharides and lactic acid, which lowers the pH and leads to demineralization of tooth structure.
A 5 yr old pt is sheduled FOR tonsilectomy. On the day of Surgery he has running nose , temp= 37.5 degrees and dry cough. which of the following will b the most apt decision 4 Surgery
1. Surgery shud b cancelled
2. can proceed if chest is clesr n no h/o asthma
3. shud get chest x-ray done b4 proceeding 4 Surgery
4. cancel Surgery for 3 weeks n pt to b on antibiotics
general anesthesia,specifically nitrous oxide is contraindicated if the child is running a common cold and having slight fever on the day of surgery
What is the best method to detect a crack in a tooth?
1) Visual inspection.
2) Tactile sensation with an explorer.
3) Radiograph.
4) Transillumination.
ADC Test Answer: 3
While visual inspection and tactile sensation can sometimes indicate a crack, a radiograph provides the best method for detecting cracks as it allows the dentist to see the internal structure of the tooth and any associated bone changes.
What is a common mechanism for condylar fractures of the mandible? 1) Direct blow to the angle of the mandible 2) Fall onto the chin 3) Gunshot wounds 4) Road traffic accidents
Oral and Maxillofacial Surgery Answer: 2Condylar fractures often result from a fall onto the chin, which drives the condyles into their fossae. This mechanism of injury is common in falls and other similar accidents.
In root resection (apicoectomy) it is appropriate to
1) remove as little of the root as possible.
2) curette the soft tissue lesion in its entirety.
3) be certain the apex is sealed
4) All of the above.
An apicoectomy is a surgical procedure that involves the removal of the apex (tip) of a tooth root along with any associated infected tissue. The goals of the procedure include:
- Remove as little of the root as possible: Preserving as much of the root structure as possible is crucial for maintaining tooth stability and function. Excessive removal can compromise the tooth's integrity.
- Curette the soft tissue lesion in its entirety: It is essential to remove all infected or necrotic tissue to promote healing and prevent recurrence of infection. This ensures that the area is clean and free of any pathological tissue.
- Be certain the apex is sealed: After the apex is resected, it is important to seal the end of the root to prevent bacteria from re-entering the root canal system. This is typically done using a biocompatible material.
Digoxin:
1) clearance is by the liver
2) increases conduction of the AV node
3) decreases the force of myocardial contraction
4) may cause atrial tachycardia in overdosage
Digoxin is a positive inotrope, hence it increases the force of myocardial contraction and may be effective in heart failure.
Digoxin has a long half-life and is given once daily. It is cleared by the renal system and hence renal impairment requires the reduction of digoxin dose.
Arrhythmias, such as atrial tachycardia, may be a sign of digoxin toxicity.
Digoxin toxicity is enhanced if there are 67 electrolyte disturbances, especially hypokalaemia, hypomagnesaemia and hypercalcaemia.
What is the best approach to ensure the cooperation of a patient with autism spectrum disorder during dental treatment?
1) Sticking strictly to a predefined treatment schedule
2) Providing a structured and predictable environment
3) Using bright, flashing lights in the operatory
4) Asking the patient to hold their mouth open without support
Patients with autism may benefit from a structured environment with minimal sensory stimulation.
What are the main challenges in the adoption of computerized dental records?
- Affordability and reliability of technology
- Lack of patient interest
- Limited space for computer equipment
- Complex regulations regarding color coding
The main barriers to adopting electronic records are the cost of the technology and ensuring it is reliable and user-friendly.
Noma, Arthrodesis and Osteoarthritis are all causal factors of which of the
following?
1) Ankylosis
2) Dens invaginatus
3) Hyperparathyroidism
4) Dentin dysplasia
Noma, Arthrodesis, and Osteoarthritis are all causal factors of Ankylosis. Ankylosis refers to the fusion or stiffening of a joint, which can be caused by various factors including Noma (a severe bacterial infection that affects the mouth), Arthrodesis (a surgical procedure to fuse a joint), and Osteoarthritis (a degenerative joint disease). These conditions can lead to the loss of mobility and function in the affected joint, resulting in ankylosis.
Which antihypertensive agent is a direct renin inhibitor?
1) Aliskiren
2) Ramipril
3) Valsartan
4) Verapamil
Aliskiren directly inhibits renin, reducing the production of angiotensin I and lowering blood pressure.
What is the role of the healthcare team in the informed consent process?
1) To convince the patient to accept the proposed treatment
2) To provide all necessary information and support the patient's decision
3) To make the treatment decision for the patient
4) To document the consent process
The healthcare team plays a crucial role in ensuring that the patient has a full understanding of their condition and the available treatment options, and in facilitating the patient's decision-making process.
The DMF index is commonly used to measure:
1) Oral hygiene
2) Dental radiograph efficacy
3) Prevalence and severity of dental caries
4) Tooth mobility
The Decayed, Missing, and Filled teeth (DMF) index is a standard epidemiological tool to assess the burden of dental caries in populations.
Which of the following is contraindicated in hypertensive patients for gingival retraction?
1) Plain retraction cord
2) Adrenalin-impregnated cord
3) Saline solution
4) None of the above
Adrenalin-impregnated cords can cause significant blood pressure spikes, which are risky in hypertensive patients.
The ideal treatment for a tooth (75) with caries touching the pulp horn at age 7 is:
1) Indirect pulp capping and steel crown
2) Pulpotomy and steel crown
3) Pulpectomy and steel crown
4) Extraction and space maintainer
ADC Test Answer: 2
At this age, a pulpotomy (removal of the coronal pulp) is appropriate as it preserves the remaining vital tissue while addressing caries.
Defluoridation of water can be done by:
1)
Lime and alum
2)
Bleaching powders
3)
Potassium permanganate
4)
Sodium chloride
One of the most effective methods for defluoridation is the Nalgonda
technique, which involves the use of lime, alum, and bleaching powder.
What is the main purpose of using chlorhexidine mouth rinse in dentistry?
1) To promote tooth whitening
2) To reduce plaque and gingivitis
3) To provide pain relief
4) To replace fluoride treatments
Chlorhexidine mouth rinses are primarily used in dentistry for their efficacy in reducing plaque accumulation and gingivitis.
Which nerve is located between the palatoglossus and palatopharyngeus
muscles?
1) Cranial nerve 9
2) Cranial nerve 7
3) Cranial nerve 10
4) Cranial nerve 12
The facial nerve (CN 7) passes between the palatoglossus and
palatopharyngeus muscles in the pterygopalatine fossa.
At which angle should the external surface of proximal cavity walls in a Class II preparation for amalgam be finished?
1) An acute angle
2) An obtuse angle
3) A right angle
4) An angle of 45°
An obtuse angle is preferred for amalgam preparations to enhance the retention and resistance form of the restoration.
The term cold sterilization has been employed to refer to 1. physical methods of sterilization 2. prolonged exposure to 20° C 3. exposure to low temperature steam 4. chemical disinfection
Microbiology Answer: 4chemical disinfection is cold strelization
A dentist is carrying out electrosurgery on a patient, and the patient sneezes with his head moving forward. What is most likely to occur?
1) Gingival trauma
2) Mucosal burn
3) Mucosal trauma
4) Trauma to adjacent tooth
The sudden movement during electrosurgery can lead to mucosal trauma, especially if the surgical site is not stable.
What is the typical healing time for a simple extraction of a tooth?
1) 3-5 days
2) 1-2 weeks
3) 2-4 weeks
4) 4-6 weeks
Healing after a simple tooth extraction typically occurs within 1 to 2 weeks, although complete healing may take longer.
What is the purpose of a patient registration form?
- To collect medical information
- To collect financial information
- To collect personal identification and contact information
- To gather insurance details
The patient registration form gathers essential details for identifying and contacting the patient, which is the foundation of the dental record.
What is the significance of the BPE score in periodontal assessment?
1) It measures the depth of periodontal pockets.
2) It assesses the presence of calculus.
3) It evaluates the overall oral hygiene status.
4) It indicates the need for periodontal treatment.
The Basic Periodontal Examination (BPE) score helps determine the need for further periodontal assessment and treatment based on pocket depth and other clinical findings.
Which two teeth can only be removed by rotation?
1) Maxillary central incisors and mandibular central incisors
2) Maxillary second premolars and mandibular first molars
3) Maxillary central incisors and mandibular second premolars
4) Maxillary first molars and mandibular central incisors
These teeth have single roots and are not multi-rooted, allowing for removal by rotation only.
What is the primary concern with a mesinangular impaction?
1) It is highly susceptible to infection
2) It is the most difficult to remove
3) It has the highest risk of damaging the adjacent teeth
4) It is associated with the lowest incidence of pericoronitis
Mesinangular impaction is the most common and least difficult type of impaction but is often associated with pericoronitis due to its position and difficulty in maintaining oral hygiene.
Unilateral numbness of the chin is associated with
1) malignancy.
2) Bell's palsy.
3) apical abscess.
4) trigeminal neuralgia
Numb chin syndrome occurs due to pressure on the mental nerve, often caused by
metastatic malignancies such as breast or lung cancer.
It serves as a potential warning sign of cancer progression.
Not a physical property of propofol:
1) Water based preparation
2) Colour of the solution is white
3) It contains egg lecithin
4) Used as 2% strength
Propofol is oil based preparation containing soybean oil, egg lecithin and glycerol. The colour is milky white and available as 1% and 2% strength.
What does T2 indicate in the TNM classification?
1) Tumor size less than 2 cm
2) Tumor size between 2-4 cm
3) Tumor size greater than 4 cm
4) Tumor extending to adjacent structures
T2 indicates that the tumor measures between 2 and 4 cm in its greatest dimension, which is important for staging cancer.
Which of the following is LEAST likely to cause pain?
1) Carious pulp exposure.
2) Chronic hyperplastic pulpitis (pulp polyp).
3) Acute pulpitis.
4) Apical periodontitis.
Chronic hyperplastic pulpitis, also known as pulp polyp, typically occurs in teeth with large carious lesions and is characterized by the presence of a proliferative mass of inflamed pulp tissue. While it can be associated with some discomfort, it is generally less painful than acute pulpitis or apical periodontitis, as the pulp tissue is often necrotic and the inflammatory response is more chronic and less acute.
What is the purpose of using a rubber dam during a stainless steel crown procedure?
1) To isolate the tooth.
2) To remove caries.
3) To reduce occlusal surface.
4) To mix cement.
A rubber dam is used to isolate the tooth during a stainless steel crown procedure.
What is the most benign tumor among the following options?
1) Kaposi sarcoma
2) Burkitt's lymphoma
3) Adenolymphoma
4) Acinic cell carcinoma
Adenolymphoma, also known as Warthin’s tumor, is a benign glandular tumor typically found in the parotid gland, characterized by two layers of eosinophilic epithelial cells.
A 22-year-old woman presents with acute gingival hypertrophy and spontaneous bleeding. What is the most likely diagnosis?
1) Myelogenous leukaemia
2) Infectious mononucleosis
3) Thrombocytopenic purpura
4) Gingivitis of local aetiological origin
The symptoms and blood analysis suggest a hematological disorder, with myelogenous leukaemia being a strong possibility.
A reversible white spot lesion indicates early demineralization that can be reversed with proper care and management
What is the primary purpose of informed consent in the context of medical and
dental procedures?
1) To ensure the patient has financial capacity to pay for the procedure
2) To establish legal protection for the healthcare provider
3) To respect the patient's autonomy and allow informed decision-making
4) To provide detailed instructions for post-treatment care
Informed consent is essential for respecting a patient's right to
make choices regarding their treatment and ensuring they have the necessary
information to make an informed decision.
What is the legal age at which a patient can typically provide informed
consent for their dental treatment?
1) 16 years old
2) 18 years old
3) 21 years old
4) Varies by state
The legal age for informed consent is not uniform across all states. Some states allow minors to consent to their own dental treatment at ages 16 or 17, while others require parental or guardian consent until the age of 18. It is essential for dentists to know the laws of the state in which they practice.
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.
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.
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.
Periodontics Answer: 4
Explanation: Surgical
therapy aims to provide better access to
subgingival deposits, ensuring thorough removal
of calculus and bacteria.
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.
For a young adult with tooth surface loss, which treatment option is best?
1) Restorative dentistry
2) Behavioral modification
3) Removal of iatrogenic causes
4) Surgery
Identifying and removing any causes of tooth surface loss, especially those related to dental treatments, is critical in addressing and preventing further damage.
What is the best description of the morphology of periodontal ligament fibers?
1) Elastic
2) Striated
3) Non-striated
4) Wavy
The fibers of the periodontal ligament exhibit a wavy morphology, which allows for flexibility and resilience to the stresses placed on them by occlusion.
The first tapping sound, known as the Korotkoff sound, represents the systolic pressure.
The most appropriate gingival contour of a fixed partial denture connector is
1) concave.
2) convex.
3) flat.
4) none
A convex contour ensures proper hygiene by reducing plaque accumulation and
facilitates better gingival health.
Concave contours can trap debris and promote inflammation.
The transfer of stress by tensile action in bone promotes:
1) Bone loss
2) Bone growth and maintenance
3) Bone weakness
4) No effect on bone health
ADC Test Answer: 2
The tensile action stimulates bone growth and helps maintain bone structure within physiological limits.
Which of the following actions is NOT a responsibility of a dental professional when they suspect abuse or neglect?
1) Reporting the suspicion to the appropriate authorities
2) Investigating the situation personally
3) Documenting observations in the patient’s record
4) Providing support to the patient
Dental professionals should report their suspicions rather than investigate, as this is outside their scope of practice.
Which of the following types of publications is the most reliable source for making evidence-based clinical decisions?
1) Dental manufacturer’s product information.
2) Professional association journals.
3) Systematic review articles from dental research journals.
4) Case reports in dental journals.
Scientific Literature Answer: 3Systematic reviews provide high-quality evidence by summarizing and analyzing multiple studies, offering a reliable foundation for clinical decision-making.
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.
If maxillary canines are placed forward to orbital plane, they are said to be in
1) Protraction
2) Retraction
3) Abstraction
4) Contraction
Orthodontics Answer: 1
SOLUTION According to Simon, in normal arch relationship, the orbital plane passes through the distal axial aspect of the maxillary canine Malocclusions described as anteropostenor deviations based on their distance from the orbital plane are as follows: 1.
Simon used the orbital plane (a plane perpendicular to the F-H plane at the margin of the bony orbit directly under the pupil of the eye).
2. Retraction: The teeth, one or both dental arches and/or jaws are too far backward, i.e. placed posterior to the plane than normal
A 4 year old has generalized bone loss, mobile teeth and generalized calculus.
Which condition should NOT be included in the differential diagnosis?
1) Cyclic neutropenia
2) Papillon-Lefevre syndrome.
3) Chediak-Higashi syndrome.
4) Crouzon syndrome.
Crouzon syndrome is associated with craniofacial abnormalities, not generalized
bone loss or periodontal issues.
Crouzon syndrome is caused by a mutation in the FGFR2 gene, which is important for bone formation
In regards to HIV infection, which of the following is the earliest finding?
1) Kaposi sarcoma on the palate
2) Reduced hemoglobin
3) Infection with pneumocystic carinii
4) Reduction in white cell count
ADC Test Answer: 4
A reduction in white blood cell count, particularly CD4 T cells, is one of the earliest indicators of HIV infection and immune system compromise.
Which drug acts as a central alpha2-agonist and is used in hypertension management?
1) Verapamil
2) Methyldopa
3) Captopril
4) Atenolol
Methyldopa is a centrally acting alpha2-agonist that lowers blood pressure by reducing sympathetic outflow.
Which of the following antihypertensive drugs should not be used in a patient on Lithium in order to prevent Lithium Toxicity?
1) Clonidine
2) Beta blockers
3) Calcium Channel Blockers
4) Diuretics
Diuretics increase sodium loss in urine and increase lithium retention.
How many grams of high-density noble metal alloy is required for casting of a molar?
1) 3 gms
2) 6 gms
3) 9 gms
4) 12 gms
With high-density noble metal alloy 6 grams is adequate for premolar and anterior castings, 9 grams is adequate for molar casting and 12 grams is adequate for pontics.
There are some enzymes that cause protein to coagulate rather than to produce simpler compund These are known as 1. lab enzymes 2. coagulase 3. proteolytic enzymes 4. enmycin
Microbiology Answer: 1There are some enzymes that cause protein to coagulate rather than to produce simpler compund These are known as lab enzymes
Which of the following has highest minimum alveolar concentration?
1) Halothane
2) Isoflurane
3) Methoxyflurane
4) Nitrous oxide
Nitrous oxide has the highest MAC value of 104 among all inhalational anaesthetics.
Which tooth is most commonly associated with dental impaction?
1) Maxillary canine
2) Mandibular first molar
3) Mandibular third molar
4) Maxillary central incisor
The mandibular third molar (wisdom tooth) is the most frequently impacted tooth due to limited space in the dental arch.
The formation of oxyhemoglobin is influenced by
The patient whom you are about to treat states that he has Von Willebrand’s disease. Which one of the following preoperative hematological analyses may reflect this disease?
1) Bleeding time and factor VIII level
2) Bleeding time and factor IX level
3) Bleeding time and factor X level
4) Platelet count
ADC Test Answer: 1
Von Willebrand's disease is characterized by prolonged bleeding time and low levels of factor VIII, which is essential for normal clotting.
What is the altered cast technique used for?
1) Full dentures
2) Tooth-supported dentures
3) Mucosa and tooth-borne partial dentures
4) Single tooth restoration
The altered cast technique is specifically designed to improve the fit of partial dentures by capturing better detail from both the mucosa and the involved teeth.
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.
What is the most common way dental unit waterlines become contaminated?
1) By patients' saliva
2) By bacterial growth in waterlines
3) By backflow from the public water supply
4) By cleaning and disinfecting solutions
Dental unit waterlines can become contaminated with bacteria if
they are not regularly maintained and disinfected, leading to potential
infection risks during dental procedures.
Which of the following is NOT a component of the "Five Senses" approach to managing dental anxiety?
1) Visual
2) Auditory
3) Olfactory
4) Gustatory
The "Five Senses" approach involves managing anxiety through visual, auditory, olfactory, and tactile stimuli, not gustatory stimuli, which relate to taste.
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.
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.
Periapical Abscess is a collection of pus at the root of a tooth. It's usually
caused by which of the following?
1) Inflammation
2) Tooth decay
3) Infection
4) Dead tissues
Periapical abscess is a collection of pus that occurs at the root of a tooth. It is usually caused by infection. Infection can occur when bacteria enter the tooth through a cavity or a crack, leading to inflammation and the formation of pus. Tooth decay and dead tissues can contribute to the development of an infection, but the primary cause is the presence of bacteria that trigger the inflammatory response and the subsequent formation of pus.
Koplik's spots are seen in the oral cavity of patients with
1) chickenpox.
2) mumps.
3) measles.
4) scarlet fever.
E. smallpox.
Koplik's spots are small, white spots found on the mucous
membranes of the cheeks in the early stages of measles. These spots are
pathognomonic for the disease and typically appear before the rash. They are not
associated with the other conditions listed: chickenpox, mumps, or scarlet
fever.
A child has received a successful inferior alveolar nerve block using 1.5ml of
2% lidocaine with 1:100,000 epinephrine. However, during placement of a rubber
dam clamp on the first permanent molar, the child complains that the “tooth
ring” is hurting. Which of the following is the most appropriate management?
1) Wait 15 minutes until more profound anesthesia is achieved
2) Anesthetize the lingual nerve with the remaining lidocaine.
3) Anesthetize the long buccal nerve with the remaining lidocaine.
4) Proceed with treatment without rubber dam.
The long buccal nerve supplies the gingiva in the region and may require additional anesthesia
The primary agent used in the treatment of trigeminal neuralgia is 1. diazepam 2. phenytoin 3. phenobarbital 4. carbamazepine
Pharmacology Answer: 4carbamazepine is the primary agent used in ment of trigeminal neuralgia
Which of the following instruments is NOT typically used in a pulpotomy procedure?
1) Cotton pellets.
2) Spoon excavator.
3) Diamond bur.
4) Formocresol.
A diamond bur is not typically used in a pulpotomy procedure. A 330 bur is used to remove the roof of the pulp chamber.
What is the most effective non-pharmacological method for managing dental anxiety?
1) Tell-Show-Do technique
2) Breathing exercises
3) Positive reinforcement
4) Nitrous oxide sedation
Breathing exercises, such as deep breathing or diaphragmatic breathing, are widely recognized as effective non-pharmacological methods for reducing anxiety. They help the patient to relax and can be performed easily without additional equipment.
False statement regarding phenytoin is?
1) It is a teratogenic drug
2) Highly protein bound
3) Induces insulin secretion
4) Follows saturation kinetics
Phenytoin inhibits insulin secretion and causes hyperglycemia.
The following statement about bupivacaine are true, except:
1) Must never be injected into vein
2) More cardiotoxic than lignocaine
3) 0.25 % is effective for sensory block
4) Produces methemoglobinemia
Bupivacaine is long acting local anaesthetic with high cardiotoxicity so it should not be injected in vein i.e.
Tyrosine kinase inhibitors are useful in the management of ?
1) Acute myeloid leukemia
2) Small cell carcinoma of lung
3) Gastrointestinal stromal tumors
4) Neurofibromatosis
Tyrosine kinase inhibitors are used in the treatment of: Chronic myeloid leukemia
Acute lymphoblastic leukemia ( philadelphia chromosome positive cases )
Head and neck malignancies
Non small cell carcinoma lung
Gastrointestinal stromal tumours
Hepatocellular cancer
Renal cell carcinoma
Pancreatic cancer
Colorectal cancer
An alpha helix of a protein is most likely to be disrupted if a missense mutation introduces the following armino acid within the alpha helical structure:
1. Alanine.
2. Aspartic acid.
3. Tyrosine.
4. Glycine.
Glycine and proline introduce a bend in structure of protein, hence alpha helix disrupted
What is the difference between implied and verbal consent?
1) Implied consent requires no action from the patient, while verbal consent
involves the patient stating their agreement
2) Verbal consent is documented, while implied consent is not
3) Implied consent is for diagnostic procedures, and verbal consent is for
treatments
4) There is no difference between implied and verbal consent
Implied consent is inferred from the patient's passive cooperation, while verbal consent requires the patient to explicitly state their agreement to the proposed treatment.
You are interested in finding out what the risk indicators are for a rare form of oral cancer. What type of study would be the most appropriate for addressing this issue?
1) Cohort
2) Prevalence study
3) Clinical trial
4) Case-control study
5) Case-series
A case-control study is ideal for investigating risk factors for rare diseases, as it compares individuals with the disease to those without.
What is the primary advantage of computerized dental records in terms of patient care?
- Enhanced data security
- Improved legibility and reduced errors
- Reduced waiting times for appointments
- Increased marketing opportunities
Digital records can enhance patient care by reducing errors associated with handwritten notes and improving legibility, which facilitates better communication among dental professionals and safer treatment planning.
Which of the following is NOT a component of a comprehensive dental record?
1) Patient medical and dental history
2) Clinical examination findings
3) Treatment plans and consent forms
4) Social security number of the patient's next of kin
E. Financial information
While it's essential to have emergency contact information, including the next of kin, a social security number is not typically considered a necessary part of a comprehensive dental record. The primary components of a comprehensive dental record include the patient's personal and medical/dental history, clinical examination findings, diagnoses, treatment plans, consent forms, and radiographs/images.
A Class III antiarrhythmic agent that blocks K+ channels, prolongs action potential duration , and lengthens QT interval.
1) propranolol
2) acebutolol
3) sotalol
4) esmolol
Sotalol is a Class III antiarrhythmic agent that blocks K+ channels, prolongs action potential duration (APD), and lengthens QT interval.
Noncardiac selective beta-adrenergic blocker.
The D-isomer has less than 1/50 beta-blocking activity of the L-isomer.
Sotalol possesses 30% of beta-blocking activity of propranolol
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.
A non-synovial joint with dense connective tissue between two bony surfaces is called?
1) Synchondrosis
2) Syndesmosis
3) Symphysis
4) Suture
Sutures are fibrous joints in the skull that are immovable and connected by dense connective tissue, whereas syndesmoses can allow slight movement.
What is the ideal angle for subgingival curettage with universal curettes?
1) 45 degrees
2) 60 degrees
3) 70 degrees
4) 90 degrees
A 45-degree angle is optimal for subgingival curettage, allowing effective scaling while preserving soft tissue.
Which appliance is not suitable for skeletal Class –III malocclusion at the age of 8 years?
1) Frankel III
2) Activator III
3) Chin cap
4) Maxillary splint appliance
SOLUTION Maxillary splint appliance will hold the maxilla and worsen skeletal Cl –III malocclusion.
Which artery leaves the thoracic cavity at T12?
1) Descending aorta
2) Inferior phrenic artery
3) Superior mesenteric artery
4) Celiac trunk
The descending aorta exits the thoracic cavity at the level of T12 to enter the abdominal cavity.
What is the role of sIgA in the protection against dental caries?
1) It directly neutralizes bacterial acids.
2) It promotes the growth of beneficial bacteria in the oral cavity.
3) It binds to bacteria and prevents them from adhering to tooth surfaces.
4) It provides structural support to tooth enamel.
Secretory immunoglobulin A (sIg1) is a salivary antibody that can bind to cariogenic bacteria, limiting their ability to colonize and produce acids on the tooth surface.
The concentration of ketones is increased in body due to: 1. Starvation 2. High fat diet 3. Diabetes mellitus
Which of the following will most lead to a person unwilling to accept criticism:
1) Being raised in a destructive criticism environment.
2) Working in a destructive criticism environment.
3) The person only gives out destructive criticism.
4) Having aggressive behavior.
Being raised in a destructive criticism environment can greatly contribute to a person's unwillingness to accept criticism. This is because if someone grows up constantly being subjected to negative and destructive criticism, they may develop a fear of judgment and rejection. They may also internalize the belief that criticism is always harmful and personal, making them defensive and resistant to any form of feedback. This upbringing can shape their mindset and make them view criticism as an attack rather than an opportunity for growth, leading to their unwillingness to accept it.
A medication that may elicit headache as a side effect :
1) thiazide
2) Methyldopa
3) hydralazine
4) Procainamide
A number of medications may elicit headache as a side effect.
Common offenders include nitroglycerin, hydralazine, calcium-channel blockers, digitalis, and estrogen.
Recreational drugs such as nicotine, alcohol, marijuana, and amphetamines can also induce headache.
What neurotransmitter is responsible for closing pre-capillary sphincters?
1) Acetylcholine
2) Serotonin
3) Nor-adrenaline
4) Substance P
Nor-adrenaline is responsible for vasoconstriction and can close pre-capillary sphincters, regulating blood flow.
What is the primary concern when administering local anesthesia to a patient with a bleeding disorder?
1) Increased pain sensitivity
2) Prolonged bleeding from the injection site
3) Inability to achieve adequate anesthesia
4) Higher risk of infection
Patients with bleeding disorders, such as hemophilia, may have difficulty controlling bleeding, even from minor procedures like local anesthetic injections.
What should be included in the patient's medical history section of the dental record?
- Allergies and medication use
- Social history, such as smoking and alcohol intake
- Previous dental treatments and surgeries
- All of the above
A patient's medical history should include allergies, medication use, social history, and dental history to provide a comprehensive overview of the patient's health, which can affect treatment decisions and patient care.
What is a common oral manifestation of bulimia nervosa?
1) Xerostomia
2) Erosion of dental enamel
3) Oral thrush
4) Gingival hyperplasia
The exposure of teeth to stomach acids due to vomiting can lead to significant enamel erosion.
If the sealant or bonding agent is not placed on part of the enamel that has been etched by an acid solution, you would expect:
1) Arrest of enamel caries by organic sulfides
2) The enamel to return to normal within 7 days
3) Continued enamel demineralization in the etched area
4) Slight attrition of the opposing tooth
If the etched area is not sealed, it may remineralize over time, but the risk of continued demineralization exists if not properly managed.
What type of caries is characterized by a rapid progression and is often light-colored?
1) Chronic caries
2) Arrested caries
3) Acute/rampant caries
4) Incipient caries
Acute/rampant caries are immediately damaging, light-colored, and very infectious.
Which clotting factor is primarily associated with initiating the extrinsic pathway of coagulation in DIC?
1) Factor VII
2) Factor X
3) Factor V
4) Factor XII
In DIC, tissue factor (TF) binds with coagulation factor VII, triggering the extrinsic coagulation pathway.
What is the treatment for trismus secondary to infection?
1) Warm compresses and antibiotics
2) Surgical drainage and antibiotics
3) Corticosteroid injections and muscle relaxants
4) Physical therapy and pain medication
Infectious causes of trismus often require surgical intervention to drain the infection site, followed by antibiotic therapy.
What is the purpose of the Code of Ethics established by dental associations?
1) To provide financial benefits to members
2) To guide dental professionals in ethical decision-making
3) To promote competition among dental practices
4) To regulate dental fees
Ethics and Jurisprudence Answer: 2The Code of Ethics serves as a framework for ethical conduct, helping dental professionals navigate complex ethical dilemmas and maintain high standards of practice.
After completion of endodontic chemomechanical debridement
1) all tissue should be removed from the root canal system.
2) permanent inflammation may be cause4)
3) the root canal should be sterile.
4) some areas of the root canal system may be incompletely cleaned
Despite thorough chemomechanical debridement, it is common for certain areas within the complex anatomy of the root canal system to remain inadequately cleaned. This can occur due to the presence of lateral canals, isthmuses, or other anatomical variations that are difficult to access, leading to potential areas of infection or inflammation.
What is a common appearance of vertical tooth fracture?
1) Perio abscess-like appearance
2) Displacement of fragments
3) A clear film of pus
4) Tooth mobility
ADC Test Answer: 1
Vertical root fractures often present as periodontal abscesses, as the fracture involves the root structure and can lead to localized periodontal inflammation.
Secondary infections in HIV-infected patient are classified under
1) Class I
2) Class II
3) Class III
4) Class IV
General Medicine Answer: 4
Common opportunistic infections associated with HIV include: cryptococcal meningitis. toxoplasmosis.
In cases of anorexia nervosa with high caries rates, what management options should be prioritized?
1) Dietary advice
2) Tooth brushing
3) Referral to a GP
4) All of the above
Comprehensive management should include dietary advice, oral hygiene practices, and medical evaluation while working closely with healthcare providers.
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.
Which of the following is a pharmacologic effects of cocaine:
1) It increases the uptake of catecholamines at adrenergic nerve endings
2) It increases the body temperature
3) It causes bradycardia in large doses
4) It causes tachycardia is small doses
Cocaine releases noradrenaline, adrenaline and dopamine as well as blocks their uptake.
What artery provides nourishment to the TMJ?
1) Superficial temporal artery
2) Maxillary artery
3) Facial artery
4) Inferior alveolar artery
The superficial temporal artery, a branch of the maxillary artery, provides blood supply to the temporomandibular joint (TMJ).
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
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.
Strength and hardness of a gypsum model or cast are affected by water-powder ratio and porosity of cast
The steps of plaque formation on teeth are:
1) Pellicle, biofilm, materia alba, plaque
2) Biofilm, pellicle, plaque, materia alba
3) Pellicle, plaque, biofilm, materia alba
4) Materia alba, plaque, biofilm, pellicle
The formation of dental plaque begins with the deposition of a pellicle, a thin film of proteins and salivary components on the tooth surface. This pellicle provides a substrate for bacterial adhesion, leading to the development of a biofilm. As the biofilm matures, it can form a white, soft, and easily removable substance known as materia alba. If not removed, the biofilm can become mineralized and transform into the dense and firm structure recognized as dental plaque, which can contribute to the onset of gum disease and tooth decay.
What type of consent is required for a simple buccal pit restoration?
1) Implied consent
2) Verbal consent
3) Written consent
4) Informed refusal
Implied consent is sufficient for routine and non-invasive
procedures, such as a simple buccal pit restoration, as it is assumed the
patient agrees to the treatment based on their cooperation during the process.
Which drug is most effective in reducing mortality in patients with left ventricular systolic dysfunction ?
1) Enalapril
2) Aspirin
3) Digoxin
4) Frusemide
ACE inhibition has a beneficial impact on survival rates, functional status, and hemodynamics in patients with left ventricular systolic dysfunction.
In the renin-angiotensin system, a fall in perfusion pressure stimulates the juxtaglomerular cells in the kidney to release the enzyme renin.
Renin cleaves the decapeptide angiotensin I from angiotensinogen, a glycoprotein synthesized in the liver.
The octapeptide angiotensin II is formed by the action of ACE on angiotensin I.
Angiotensin II is a potent vasoconstrictor and stimulates the release of aldosterone and norepinephrine.
Why must rests be rigid?
1) To provide flexibility to the denture
2) To ensure they receive positive support
3) To enhance aesthetics
4) To facilitate movement of the RPD
Rests must be rigid to ensure they provide adequate support and stability, receiving positive support from the abutment teeth.
What percentage of children under 5 years old have caries?
1) 30%
2) 43%
3) 50%
4) 60%
According to health surveys, 43% of children aged 5 years in the UK have experienced dental caries.
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.
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.
Which receptors are implicated in anti emetic effects:
1) D2
2) V2
3) MU2
4) GABA
CTZ rich in D2 and 5HT receptors
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.
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 role of color coding in dental records management?
1) To enhance the aesthetic appeal of records
2) To simplify the organization and retrieval of files
3) To indicate the financial status of patients
4) To differentiate between various dental procedures
Color coding can help in quickly identifying and organizing patient files, making retrieval more efficient.
Which of the following new technologies uses light to detect dental caries?
1) Digital Imaging Fibre-Optic Transillumination (DIFOTI)
2) Laser fluorescence (DIAGNOdent)
3) Quantitative Light-Induced Fluorescence (QLF)
4) All of the above
DIFOTI, DIAGNOdent, and QLF are all new technologies that utilize light to detect dental caries. They work by identifying changes in light transmission or fluorescence caused by the presence of carious lesions.
Which muscle of the soft palate is not supplied by the pharyngeal plexus? 1. Palatoglossus 2. Musculus uvulae 3. Palatopharyngeus 4. Tensor veli palatine
Anatomy Answer: 4muscle of the soft palate is not supplied by the pharyngeal plexus is Tensor veli palatine
What is the strength of adrenaline typically used in dental anesthesia?
1) 1:100
2) 1:1000
3) 1:2000
4) 1:5000
The standard concentration of adrenaline used in dental procedures is 1:1000, which helps to control bleeding and prolong the effect of local anesthetics.
What is the role of glycoproteins in the saliva's natural defense against
dental caries?
1) They act as a physical barrier to protect the tooth surface from bacteria.
2) They neutralize bacterial acids.
3) They inhibit the formation of plaque.
4) They promote the growth of beneficial oral bacteria.
Glycoproteins in saliva help to aggregate bacteria, making them easier to eliminate during swallowing and reducing their ability to adhere to tooth surfaces.
How should the floor of the pulp chamber in molars be prepared?
1) Swab and dry with cotton wool and excavate
2) Use a round bur to flatten the floor
3) Under-cut walls
4) Use a flat-end fissure bur to make it leveled
Preparing the pulp chamber floor involves drying the area and then carefully excavating to ensure a clean and manageable working area without damaging surrounding tissues.
What is the most common cause of pain in elderly patients with dental
implants?
1) Peri-implantitis
2) Implant fracture
3) Implant rejection
4) Nerve damage
Peri-implantitis, an inflammatory process affecting the tissues
surrounding the implant, is a common cause of pain and discomfort in patients
with dental implants.
Thymol is preservative used for:
1) Halothane
2) Isoflurane
3) Desflurane
4) Enflurane
Halothane is stored in amber-colored bottles and contains thymol 0.01% as a preservative to prevent decomposition by light.
What dental relationship is present in an Angle Class I occlusion?
Orthodontics Answer: 31. The buccal cusp of the maxillary second premolar aligns with the mesiobuccal groove of the mandibular first molar.
2. The cusp of the maxillary canine aligns with the cusp of the mandibular canine.
3. The mesiobuccal cusp of the maxillary first molar aligns with the mesiobuccal groove of the mandibular first molar.
4. The mesiobuccal cusp of the maxillary first molar aligns with the embrasure between the mandibular first molar and second premolar.
The mesiobuccal cusp of the maxillary first molar aligns with the mesiobuccal groove of the mandibular first molar.
During which stage of caries can a lesion be detected using transillumination?
1) White spot lesion
2) Dentinal caries
3) Enamel caries
4) Advanced cavitation
Transillumination is most effective in detecting interproximal caries, particularly enamel lesions, as the light can penetrate and highlight changes in the tooth structure at these early stages.
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 most appropriate initial management of a tooth which is sensitive to
percussion but responds normally to electric pulp testing?
1) Pulpectomy.
2) Occlusal assessment.
3) Pulpotomy.
4) Restoration replacement.
Percussion sensitivity may result from occlusal trauma, which can be corrected by adjusting the bite.
Diffusion hypoxia is caused by:
1) Ether
2) Halothane
3) N2O
4) Trielene
At the end of surgery when nitrous oxide delivery from machine is stopped the gradient between alveoli and blood is reversed and nitrous oxides gushes into the alveoli replacing oxygen from there creating hypoxia called as diffusion hypoxia.
Fat Embolism is diagnosed by - 1. Fluffy Exudates in Retina 2. Fat Droplets in Sputum 3. Fat droplets in Urine
Do we need to change the antibiotic dose for a patient with rheumatoid arthritis taking 15 mg of prednisolone for dental treatment of a dental abscess?
1) Yes, increase the dose
2) Yes, decrease the dose
3) No, no change needed
4) Consult a specialist before proceeding
For patients on corticosteroids such as prednisolone (15 mg daily), there is typically no need to adjust the dose of antibiotics used for dental procedures.
Only pure hinge movementsof the mandible occur at
1) centric occlusion
2) centric relation
3) lateral exursion
4) terminal hinge position
The functional movements of the mandible are combinations of hinge and glide movements. Within vertical limits, the mandible may make a pure hinge movement without a simultaneous glide. The one relation of the condyle to the fossae in which this pure hinge movement is possible is called terminal hinge position
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.
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 recommended retention period for dental records?
1) Indefinitely
2) Until the patient turns 18
3) For a certain period after the last treatment
4) Only as long as the patient is a current client
While specific retention periods may vary, dental records should generally be kept for a defined time after the last treatment to comply with legal and professional standards.
Untrue about desflurane is:
1) Rapid induction and recovery
2) High vapour pressure
3) Induction is very smooth
4) Does not produce fluoride
Desflurane has a pungent odor, making induction unpleasant and potentially causing laryngospasm or bronchospasm.
The Beta Blocker with local Anesthetic effect is
1) Pindolol
2) Atenolol
3) Esmorolol
4) Timolol
Local anesthetic action, also known as "membrane-stabilizing" action, is a prominent effect of several -blockers Acebutolol, Labetalol, Pindolol Propranolol.
This action is the result of typical local anesthetic blockade of sodium channels and can be demonstrated experimentally in isolated neurons, heart muscle, and skeletal muscle membrane.
Which of the following drugs acts by enzyme inhibition?
1) salbutamol
2) acetazolamide
3) tolbutamide
4) chlorpromazine
Acetazolamide is a carbonic anhydrase inhibitor that reduces aqueous humour production and is therefore indicated in glaucoma to reduce the intraocular pressure.
Salbutamol is a selective, short-acting beta2-agonist used as a bronchodilator in asthma.
Chlorpromazine is an aliphatic neuroleptic antipsychotic drug used in schizophrenia.
What is the primary responsibility of a healthcare provider when they suspect abuse?
1) Confront the abuser
2) Document findings and report to authorities
3) Discuss with the patient’s family
4) Ignore the signs if the patient is an adult
Healthcare providers must document findings and report suspicions of abuse to the appropriate authorities to ensure the safety and well-being of the patient.