1. 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 1 of 20 2. Which of the following tooth roots is most likely to be pushed into the maxillary sinus during extraction?Maxillary canineMaxillary 1st premolarMaxillary 1st molarMaxillary 2nd premolarQuestion 2 of 20 3. When calcospherites fail to fuse during dentin matrix formation the result is formation ofInterglobular dentinDead tractsIrregular dentinNone of the aboveQuestion 3 of 20 4. If a maxillary 1st molar has a fourth canal it is located in which of the following rootsmesiofacialdistofacialpalatal4thQuestion 4 of 20 5. All of the following types of oral mucosa are nonkeratinized, except:Buccal mucosaInferior surface of the tongueThe soft palateThe hard palateQuestion 5 of 20 6. What condylar movement is performed as the mandible moves from a pure protrusive movement from intercuspal position to a maximum protruded positionTranslationRotationHingeMedial and forwardQuestion 6 of 20 7. Which of the following groups of fibers are not attached to alveolar boneTransseptalHorizontalObliqueApicalQuestion 7 of 20 8. Most abundant myelinated fibre present in pulpC fibreA deltaA alphaA betaQuestion 8 of 20 9. Circumvallate papilla are supplied byLingual nerveGlossopharyngeal nerveHypoglossal nerveVagusQuestion 9 of 20 10. All of the following muscles are considered to be extrinsic muscles of the tongue, except:Genioglossus muscleLongitudinal muscleHyoglossus muscleStyloglossus muscleQuestion 10 of 20 11. Which of the following chronic conditions may cause tooth abrasion?GERDNocturnal bruxismOcclusal traumaPipe smokingQuestion 11 of 20 12. predominant type of collagen in cementum istype 1type 2type 3type 4Question 12 of 20 13. 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 13 of 20 14. Contour lines(owen ) areHypocalcified bandsHypercalcified bandsNon mineralised bandsNone of the aboveQuestion 14 of 20 15. Primary saliva is isotonic. It is modified to become hypotonic while coming into oral cavity inmajor secretory ductsCanaliculiStriated ductsIntercalated ductsQuestion 15 of 20 16. Which of the following does not contain taste budsCircumvallate papillaeFiliform papillaeFungiform papillaeFoliate papillaeQuestion 16 of 20 17. Which tooth listed below may have a pulp chamber that is somewhat triangular as opposed to oval?Mandibular central incisorMaxillary lateral incisorMandibular lateral incisorMaxillary central incisorQuestion 17 of 20 18. Compact bone and cellular cementum are similar as they containCanaliculi and incremental linesLacunae and elastic fibersCollagen fibers and blood vesselsSharpey's fibers and elastic fibersQuestion 18 of 20 19. Which muscle is a synergist for the lateral pterygoid muscleMassaterBuccinatorLatera pterygoidMedial pterygoidQuestion 19 of 20 20. Which of the following premolar is usually the smallestmaxillary 1stmaxillary 2ndmandibular 1stmandibular 2ndQuestion 20 of 20 Loading...