Description : What is the active agent in most home (night guard) bleaching solutions? a. 2-5% carbamide peroxide b. 10 - 15% Phosphoric acid c. 10 - 15% carbamide peroxide d. 35% hydrogen peroxide e. 5 - 10% citric acid Attention:
Last Answer : c. 10 - 15% carbamide peroxide
Description : Before filling a class V abrasion cavity with GIC you should(+adc March07) A. Clean with pumice, rubber cup, water and weak acid B. Dry the cavity thoroughly before doing anything C. Acid itch cavity then dry thoroughly
Last Answer : A. Clean with pumice, rubber cup, water and weak acid
Description : When preparing a class III cavity for composite restoration; in which situation should acid itching be used: A. Always should be performed to minimise marginal leakage B. Should not be ... extra retention is required D. Only in situations where cavity is shallow to avoid pulp irritation
Last Answer : A. Always should be performed to minimise marginal leakage
Description : The best way to clean a cavity before the placement of GIC is,** A. H2O2 B. Phosphoric Acid C. Polyacrylic acid 10% sturdavent 563pag
Last Answer : C. Polyacrylic acid 10% sturdavent 563pag
Description : Patient has hot and cold sensation and pain on percussion after the filling of class III Cavity with GIC base and composite. What will be possible cause – 1) bacterial microleakage 2) mechanical trauma of cavity cutting 3) Exothermic reaction while setting GIC
Last Answer : 2) mechanical trauma of cavity cutting
Description : Occlusal cavity with extension of the buccal fissure is classified as, A. Class II B. Class III C. Class I D. Class V
Last Answer : C. Class I
Description : In preparing a very small proximal amalgam cavity on a molar tooth what would consider, A. Extend the cavity to the gingival margin B. Extend the cavity beyond the contacts areas C. Achieve at least 2mm in dentine D. Extend cavity just beyond dento enamel junction
Last Answer : D. Extend cavity just beyond dento enamel junction
Description : While you finish a class I cavity, the enamel is sound but you notice a brown line in the dentine and on the Dento-enamel junction, what is your response, A. You leave it and complete the final restoration B. You extend your preparation and clean it C. You apply a cover of varnish
Last Answer : B. You extend your preparation and clean it
Description : In the preparation of Premolar class I cavity what is the best way of getting retention, A. Slightly done undercut of the mesial and distal walls B. Slightly done undercut of the buccal and lingual walls C. The convergence of the cavity walls
Last Answer : B. Slightly done undercut of the buccal and lingual wall
Description : A patient complains of sensitivity, on examination you find a composite filling restoring a good cavity preparation without any secondary caries; what is your next step: A. Extirpate the pulp that is obviously ... to sedate the pulp C. Ask patient to come back in six months D. Repeat restoration
Last Answer : B. Place ZOE dressing to sedate the pulp
Description : In cavity preparation 1mm below DEJ what is seen: A. More dentinal tubules, some intertubular and peritubular B. Some dentinal tubules, more intertubular and less peritubular C. More ... , some intertubular and dentinal tubular D. Equal amount of dentinal tubules, intertubular and peritubular
Last Answer : B. Some dentinal tubules, more intertubular and less peritubular
Description : The MOST common sites for squamous carcinoma in the oral cavity are:** A. Palate and gingivae B. Tongue and floor of the mouth C. Tongue and palate
Last Answer : B. Tongue and floor of the mouth
Description : To achieve optimum cavity preparation, which of the following factors of internal anatomy must be considered in root canal treatment: A. Outline form B. The age and shape of pulp chamber; in ... root canals. C. Internal external relationship D. Intra-coronal preparation E. None of the above
Last Answer : B. The age and shape of pulp chamber; in addition to the direction of individual root canals.
Description : The principle cause of failure of amalgam restoration is: A. Improperly prepared amalgam B. Improper cavity preparation C. Perio involvement D. Particles of amalgam
Last Answer : B. Improper cavity preparation
Description : At birth, the oral cavity usually contains: A. S. mutans only B. No micro organism C. S. mutans and S. salivavis D. Lactobacilli and S. mutans
Last Answer : B. No micro organism
Description : Sensitivity to hot and cold foods soon after cavity preparation and placement of GIC and composite resin in an upper incisor tooth is due to: A. Mechanical trauma due to cavity preparation B. Chemical C. Heat from GIC settings
Last Answer : A. Mechanical trauma due to cavity preparation
Description : What is the danger of using air as a cooler during cavity cutting: A. Hypersensitivity B. Odontoblast is drawn into the tubule
Last Answer : B. Odontoblast is drawn into the tubule
Description : The pulpal floor of the Class II cavity for a mandibular first premolar should be: GA.Parallel to occlusal plane B. Perpendicular to long axis C. Tilted lingually
Last Answer : GA.Parallel to occlusal plane
Description : Which cement is less soluble in the oral cavity: A. Polycarboxylate B. Zinc phosphate C. Silicate phosphate D. GIC
Last Answer : D. GIC
Description : .Which of the following is true: A. Antibiotics are useful in the treatment of periodontitis B. Trauma from occlusion causes thickening of the marginal gingivae C. Periodontitis is the ... can be identified by x-ray E. Periodontitis is the most common disease in the oral cavity
Last Answer : E. Periodontitis is the most common disease in the oral cavity
Description : An old male presents complaining of having numerous white lesions in the oral cavity within past few days. Prior to this the family physician prescribed chlorite tetracycline for an upper respiratory infection, ... plaques on the lip mucosa, buccal mucosa and the tongue. MOST LIKELY to be:
Last Answer : Moniliasis (Which is candidiasis)
Description : In class II restorations, all of the following are considered to occur as probable causes of periodontal problems except: A. Flat ridge B. Faulty or not proper contour C. Not properly polished restoration D. Cervical wall is too deeply apical E. Overextension of lining in cavity
Last Answer : E. Overextension of lining in cavity
Description : Why can Class IV gold not be used in cavity as a filling material: A. Can not be polished “burnished” B. The corrosive properties
Last Answer : A. Can not be polished “burnished”
Description : Upper first premolar with MO cavity; what is important about the application of the matrix band (the question has also shown too as .What is complicated by): A. The mesial concavity of the root ... pulp C. High buccal pulp horn D. High lingual pulp horn E. Concavity of distal root surface
Last Answer : A. The mesial concavity of the root surface
Description : At which angle to the external surface of proximal cavity walls should a class II preparation for amalgam be finished A. An acute angle B. An obtuse angle si es el cajon proximal C. A right angle D. An angle of 45°
Last Answer : B. An obtuse angle si es el cajon proximal
Description : The bur should be tilted lingually when preparing the occlusal surface of class II cavity on a mandibular first premolar in order to: I. Remove unsupported enamel II. Prevent encroachment on the buccal pulp horn III. Prevent ... and II B. I and III C. II and IV D. III and IV E. IV only
Last Answer : C. II and IV
Description : .What is the most common malignant lesion that occurs in the oral cavity: A. Ameloblastoma B. Squamous cell carcinoma C. Osteosarcom
Last Answer : B. Squamous cell carcinoma
Description : the pulp horn most likely to be exposed in the preparation of large cavity in permanent molar tooth is,CHECK ITS VERY CONTROVERSIAL QUESTION A. Mesio-Lingual in upper first molars B. Mesio-Buccal in ... first molars D. Mesio-Lingual in lower first molars E. Mesio- Buccal in lower first molar
Last Answer : B. Mesio–Buccal in upper first molars
Description : Benign migratory glossitis or Geographic Tongue, manifests itself in the oral cavity as, A. Irregularly outlined areas of hyperkeratosis of the dorsal surface of the tongue B. Furrows outlined the ... (fissures) radiating from a central fissure G. Irregular area in the midline of the tongue
Last Answer : C. Loss (atrophy) of filiform papillae in multiple irregularly outlined areas
Description : To test chemical oxygen demand (C.O.D.) of sewage, organic matter is oxidised by potassium dichromate in the presence of A. Hydrochloric acid B. Sulphuric acid C. Nitric acid D. Citric acid
Last Answer : ANS: B
Description : The predominant organic acid present in grapes is. a. Tartaric acid b. Malic acid c. Citric acid d. None of these
Last Answer : a. Tartaric acid
Description : Which of the following is NOT an organic acid? w) butyric (pron: byu-TEER-ik) x) sulfuric y) acetic z) citric
Last Answer : ANSWER: X -- SULFURIC
Description : Which of these acids is not organic in origin? (1) Lactic acid (2) Sulphuric acid (3) Citric acid (4) Oxalic acid
Last Answer : Sulphuric acid
Description : Which one of the following pairs is mismatched? a. Alcohol-fermentation b. Pyruvate-glycolysis c. Carbon dioxide-glycolysis d. NADH-citric acid cycle
Last Answer : c. Carbon dioxide-glycolysis
Description : What is the main function of EDTA in endodontics? A. Decalcification of dentine B. Cleaning debris from root canal
Last Answer : A. Decalcification of dentine
Description : Acid conditioning of enamel and eroded dentine: A. Provides an none traumatic, conservative clinical approach to the bonding of restorative material B. Is a traumatic approach to bonding ... highly significant retention and good marginal integrity and clinical durability E. None of the above
Last Answer : A. Provides an none traumatic, conservative clinical approach to the bonding of restorative material
Description : A 37 years-old patient presents with paroxysmal pain on the left eye that he thinks is related to his maxillary posterior teeth. The pain comes in recurrent bursts and is aggravated by stress and ... diagnosis is: A. Migraine B. Cluster headache C. Trigeminal neuralgia D. Temporal neuritis
Last Answer : B. Cluster headache
Description : The most potent viricidal properties: (another format of the same question: ‘Indicate which of the following has viricidal properties’) A. Sodium hypochlorite B. Chlorhexidine C. Glutaraldehyde D. Alcohol 70% E. Quaternary ammonium
Last Answer : A. Sodium hypochlorite
Description : Is the Kaboom Scrub Free Continuous Toilet Cleaning System scented or unscented?
Last Answer : The Kaboom cleaning system is unscented, and sits between your toilet and the water supply, adding chemicals to reduce buildup.
Description : An organic compound (A), C3H8O, on oxidation gives (B), C3H6O. The compound (B) could be (a) a carbonyl compound (b) an alcohol (c) a carboxylic acid (d) an ether
Last Answer : a carbonyl compound
Description : . The reduction of cyclohexanone with LiAlH4 (or NaBH4) will give (a) an alcohol (b) an organic acid (c) an aldehyde (d) a hemiketal
Last Answer : an alcohol
Description : Esterification reaction (A) Produces soap (B) Is reversible (C) Is a reaction between an alcohol and an organic acid (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Reaction of an alcohol with organic acid is called the __________ reaction. (A) Saponification (B) Esterification (C) Neutralisation (D) Acidification
Last Answer : (B) Esterification
Description : What is formed by heating an organic acid with an alcohol.
Last Answer : ANSWER: AN ESTER
Description : Pick out the wrong statement pertaining to the soap manufacture. (A) Transparent soaps are made by cold process (B) Organic pigments are used as colouring materials in the soap manufacture (C) ... soaps are manufactured by hot process (D) Colourless rosin is used in the manufacture of laundry soaps
Last Answer : (A) Transparent soaps are made by cold process
Description : What is the most common method to ensure that any stored data lost can be recovered?
Last Answer : Backup files
Description : The best method to take X-ray of the maxillary sinus is, A. Periapical radiograph B. Panoramic view C. Lateral cephaloghraph D. Occipitomental view E. Reverse Towne’s view
Last Answer : D. Occipitomental view
Description : .Which radiographic method would you use in assessing periodontal conditions and lesions: A. Bitewing B. Periapical C. Occlusal D. Panoramic
Last Answer : B. Periapical
Description : The method you will use to fill root canal of maxillary lateral incisor is: A. One major Gutta Percha cone B. Laterally condensed C. Laterally above condensed
Last Answer : B. Laterally condensed
Description : 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?** ... bone, followed by endodontic treatment. E. Routine orthograde endodontic treatment followed by observation.
Last Answer : D. Making a mucoperiosteal flap and removing the cyst through an opening made in the alveolar bone, followed by endodontic treatment.