1. The crown of which premolar is wider faciolingually than mesiodistally and has two cusps that are approximately equal in heighmaxillary 1stmandibular 1stmaxillary 2ndmandibular 2ndQuestion 1 of 20 2. Which of the following are the principal muscle fibres that retrude the mandiblesuperfacial massaterposterior belly of digastricposterior fibres of the temporalposterior fibers of the internal pterygoidQuestion 2 of 20 3. Development of accessory root canal is due toThe broken continuity of hertwigs root sheathThe tongue like extension of the horizontal diaphragm developmentThe apposition of dentine and cementum to the apex of the rootNone of the aboveQuestion 3 of 20 4. Korff's fibers are found inPrimary dentinSecondary dentinSclerotic dentinTransparent dentinQuestion 4 of 20 5. enamel spindle issurface projection of Striae of RetziusOdontoblastic processes that cross the DEJ into the enamelhypomineralised structures of enamel rods projecting between adjacent groups of enamel rods from DEJthin leaf like faults between enamel rods extending from enamel surface to DEJQuestion 5 of 20 6. Gene involved in odontoblastic differentiationMap 1p53p21phexQuestion 6 of 20 7. Following root canal therapy, gutta percha extending beyond the apex of which tooth is most likely to impinge on the mental foramen?Mandibular canineMandibular 1st premolarMandibular 2nd premolarMandibular 1st molarQuestion 7 of 20 8. A child 19 months old will have how many teeth?FourEightTwelveSixteenQuestion 8 of 20 9. In dentinal caries which of the following zone on histopathology shows no bacteriaDentinal sclerosisZone of decalcificationZone of bacterial invasionZone of decomposed dentinQuestion 9 of 20 10. The parotid duct opens on the oral surface of the cheek through a small opening opposite which tooth listed below?Maxillary first premolarMaxillary second molarMandibular first molarMandibular second molarQuestion 10 of 20 11. Which tooth below may show three types of occ/usal surfaces?Maxillary first premolarMandibular second premolarMandibular first premolarMaxillary second premolarQuestion 11 of 20 12. A maxillary right canine may be distinguished from a maxillary left canine because:The root always curves to the distal in the apical one-third.The distal half of the canine shows more convexity than the mesial half.Labially, the cusp tip is placed distal to a line which bisects the crown and root.Lingually, the cervical line slopes mesially.Question 12 of 20 13. Most abundant myelinated fibre present in pulpC fibreA deltaA alphaA betaQuestion 13 of 20 14. Which of the following is not TRUE of primary teeth compared to permanent teeth?They are generally whiter.Their crowns are more bulbous.Their CEJs are more constricted.Their root trunks are longer.Question 14 of 20 15. Which extrinsic muscle of the tongue functions to retract the tongueHyoglossusStyloglossusGenioglossusPalatoglossusQuestion 15 of 20 16. According to Brealey and Mckibbon(1973)commonly ankylosed teeth in deciduous dentition aremaxillary incisormaxillary caninemandibular caninemandibular molarQuestion 16 of 20 17. Intermediate plexus is seen in theCementumPDLPulpDentinQuestion 17 of 20 18. The center of the sphere in the curve of Monson lies atNasionBregmaGlabellaLambdaQuestion 18 of 20 19. At what age the calcification of deciduous teeth startsSecond month of fetal lifeFourth month of fetal lifeSixth month of fetal lifeSeventh month of fetal lifeQuestion 19 of 20 20. The type of bone present in the labial area of anterior teeth isCorticalCancellousOsteophyticExophyticQuestion 20 of 20 Loading...
