1. After the tooth emerges to the occlusal plane the clinical crown height increases bypassive eruptionactive eruptionpost emergence growth spurtjuvenile occlusal equilibriumQuestion 1 of 20 2. In cross sections of human enamel many rods resembleTriangleFish scalesSkin scalesCow hornQuestion 2 of 20 3. When the posterior teeth are in crossbite relationship Which of the following cusps are considered supporting cuspsmaxillary facial and mandibular facialmaxillary facial and mandibular lingualmaxillary lingual and mandibular facialmaxillary lingual and mandibular linguaQuestion 3 of 20 4. Sometimes mineralisation of dentin begins in globular area ,these hypomineralised zones are known asInterglobular dentinGranular layerPeritubular dentinIntertubular dentinQuestion 4 of 20 5. Keratinosomes(odland body) help inExchange of fluidsNutritionSensory perceptionFormation of intercellular agglutinating materialQuestion 5 of 20 6. Antrum of highmore' is nother name ofSphenoid sinusFrontal sinusMaxillary sinusEthmoidal sinusQuestion 6 of 20 7. The occlusal surface of the primary maxillary 1st molar issquare.rectangular.trapezoidal.rhomboidal.Question 7 of 20 8. Atypical dentin is formed due to defect inAppositionInitiationHistodifferentiationMorphodifferentiationQuestion 8 of 20 9. Which of the following cusps on a mandibular 1st molar has the largest pulp horn?MesiobuccalDistobuccalMesiolingualDistolingualQuestion 9 of 20 10. Shape and size of teeth is determined by which stageInitiationHistodifferentiationMorphodifferentiationAppositionQuestion 10 of 20 11. The only tooth wider lingually than buccally isMaillary second premolarMaxillary 1st molarMandi 1st molarMaxillary 2nd molarQuestion 11 of 20 12. The droplets of enamel found in area of furcation of the roots of permanent molars areEnamel organEnamel cracksEnamel pearlsEnamel spindleQuestion 12 of 20 13. A primitive tooth form having a single conical crown and a single root is calledacrodonthaplodontthecodontheterodontQuestion 13 of 20 14. The mesial and distal aspect (or surfaces) of all anterior teeth have a:Trapezoidal outlineTriangular outlineRhomboidal outlineSquare outlineQuestion 14 of 20 15. In dentinal caries which of the following zone on histopathology shows no bacteriaDentinal sclerosisZone of decalcificationZone of bacterial invasionZone of decomposed dentinQuestion 15 of 20 16. Major buffer system of salivaProtein bufferCarbonic acid and BicarbonatePhosphate bufferAlbumin bufferQuestion 16 of 20 17. The type of fibrous element in enamel isTono filamentKeratin like fibreCollagen fiberVimentin filamentQuestion 17 of 20 18. Intermediate plexus is seen in theCementumPDLPulpDentinQuestion 18 of 20 19. Which of the following muscles does not function as a depressor of mandibleDigastricMylohoidGeniohyoidTemporalisQuestion 19 of 20 20. Organisation centre that orchestrate surface morphogenesis isEnamel knotEnamel spindleEnamel lamellaeGnarled enamelQuestion 20 of 20 Loading...