1. The mesial and distal aspect (or surfaces) of all anterior teeth have a:Trapezoidal outlineTriangular outlineRhomboidal outlineSquare outlineQuestion 1 of 20 2. 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 2 of 20 3. Blood vessels and nerves are generally scarce in which component of TMJanterior portion of discarticular discposterior portion of disccentral portion of discQuestion 3 of 20 4. How many planes of movement can the mandible move in?OneTwoThreeFourQuestion 4 of 20 5. In cross sections of human enamel many rods resembleTriangleFish scalesSkin scalesCow hornQuestion 5 of 20 6. Primary saliva is isotonic. It is modified to become hypotonic while coming into oral cavity inmajor secretory ductsCanaliculiStriated ductsIntercalated ductsQuestion 6 of 20 7. The class of low molecular weight calcium binding proteins seen predominantly in developing enamel areEnamelinAmelogeninTuftelinAmeloplakinQuestion 7 of 20 8. The fiber bundle that is most numerous and constitutes the main attachment of the tooth isAlveolar crest groupHorizontal groupOblique groupApical groupQuestion 8 of 20 9. The tooth with occlusal groove pattern that stimulates the letter 'Y' ismandibular first premolarmaxillary 2nd premolarmaxillary 1st premolarmandibular 2nd premolarQuestion 9 of 20 10. The shallow furrow on the enamel surface where striae of retzius end are known asCrackspelliclePerikymataEnamel lamellaeQuestion 10 of 20 11. Relative to primary mandibular incisors,permanent mandibular incisors eruptlinguallyfaciallydistallymesiallyQuestion 11 of 20 12. Merkel cells help inNutritive functionSensory functionNeurosensory activitiesOlfactory functionQuestion 12 of 20 13. The term "homodont" means what?Teeth are continually being replacedTeeth differ from one anotherTeeth are all alikeLong teethQuestion 13 of 20 14. The occlusal surface of the primary maxillary 1st molar issquare.rectangular.trapezoidal.rhomboidal.Question 14 of 20 15. The commonest teeth involved in transposition areMaxillary CI and LIMaxillary canine and 1st PMMaxillary 1st PM and 2nd PMMaxillary canine and LIQuestion 15 of 20 16. The bennett movement isProtrusive movementRetrusive movementMedial movementLateral movementQuestion 16 of 20 17. Which of these is not a type of occlusal morphology of mandibular 2nd premolarYUVHQuestion 17 of 20 18. Matrix vesiclesAre found in mantle dentinContain collagenproduce alkaline phosphataseInhibit mineralisationQuestion 18 of 20 19. 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 19 of 20 20. With incresed age and irritation which form of dentin is laid downSecondary dentinRepairative dentinSclerotic dentinEburnated dentinQuestion 20 of 20 Loading...