1. The bell stage of tooth development refers toDental laminaApposition of dental tissuesProliferationHistodifferentiation and morphodifferentiationQuestion 1 of 20 2. Dental islands are frequently found in the root canals of which of the following permanent teethmaxillary lateral incisor and mandibular 2nd premolarmaxillary 2nd premolar and maxillary 1st molarmaxillary 2nd premolar and mandibular caninemaxillary 1st molar and mandibular 2nd premolarQuestion 2 of 20 3. In teeth embrassures areWider lingually than faciallyWider facialy than linguallySame facially and linguallynone of the aboveQuestion 3 of 20 4. Weils zone isCell rich zone in pulpCell free zone in pulpZone of differentiating cellsZone adjacent to dentinal tubules in pulpQuestion 4 of 20 5. Which premolar is typically the largest?Maxillary 1st premolarMaxillary 2nd premolarMandibular 1st premolarMandibular 2nd premolarQuestion 5 of 20 6. In a dried skull holes on the lingual aspects of the deciduous teeth are calledVolkmann canalsCanals of hirshfield and zuckerlandHaversian canalsGubernacular canalsQuestion 6 of 20 7. Which muscle is a synergist for the lateral pterygoid muscleMassaterBuccinatorLatera pterygoidMedial pterygoidQuestion 7 of 20 8. Nutrition of ameloblasts after 1st layer of enamel is laid isDental sacOdontoblastic processREEDental papillaQuestion 8 of 20 9. Antrum of highmore' is nother name ofSphenoid sinusFrontal sinusMaxillary sinusEthmoidal sinusQuestion 9 of 20 10. Enamel of primary and permanent teeth differ inEnamel prism arrangementMineral contentEnamel is same in primary and permanent teeth,only the dentin is differentNone of the aboveQuestion 10 of 20 11. Alignment of teeth in a curve from anterior to posterior is calledcurve of Wilsoncurve of von speemonson's curvebonwill's curveQuestion 11 of 20 12. Ameloblast are derived fromSurface ectodermMesodermEndodermNeural crest cellsQuestion 12 of 20 13. 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 13 of 20 14. Sensation of pain in pulp is mediated byLarge myelinated fibersLarge unmyelinated fibersSmall unmyelinated fibersNone of the aboveQuestion 14 of 20 15. The fiber bundle that is most numerous and constitutes the main attachment of the tooth isAlveolar crest groupHorizontal groupOblique groupApical groupQuestion 15 of 20 16. according to recent research, following is true about of pattern of enamel prism demineraliationboth head and tails are equally resistant to dissolutionhead is more resistant to dissolution than tailtail is more resistant to dissolution than headboth head and tails are equally susceptible to dissolutionQuestion 16 of 20 17. Peg lateral is associated withMorphodifferentiationHistodifferentiationAppositionInitiationQuestion 17 of 20 18. The upper compartment of the temporomandibular joint is that space between theondylar head and the discinferior and superior retrodiscal laminaretrodiscal tissue and capsular ligamentdisc and the articular fossa and eminenceQuestion 18 of 20 19. The peripheral axons from a network of nerves located adjacent to the cell rich zone in pulp is known as5HTPlexus of rashkowZone of weilBrachial plexusQuestion 19 of 20 20. When distinguishing a mandibular canine from a maxillary canine, all of the following are true, except:On a mandibular canine, the mesial border is much straighter (viewed facially)The cusp tip is displaced lingually on the mandibular canine, whereas on the maxillary canine the cusp is on or labial to the root axis line (viewed proximally and incisally)The mandibular canine has a comparatively wider mesiodistal dimension (viewed facially)The mandibular canine has a cingulum that is less pronounced and often slightly to the distal, whereas the maxillary canine has a cingulum that is more pronounced and centered mesiodistally (viewed lingually)Question 20 of 20 Loading...