1. At what stage of developmentof a tooth does dentinogenesis imperfecta accur Initiation Histodifferentiation Morphodifferentiation Proliferation 2. Nerve fibers in dental pulp are Both autonomic parasympathetic and motor fibers Sympathetic and afferent post ganglionic Motor fibers Parasympathetic postganglionic 3. The remnants of epithelial root sheath found in periodontal ligament are called Rests of malassez Epithelial diaphragm Enamel knots Enamel pearls 4. Apical PDL fibres arises from none of the above middle third of root crest of alveolar bone apical end of root 5. Which ligament helps retain the condyle within the glenoid fossa? Sphenomandibular ligament Temporomandibular ligament Pterygomandibular ligament Stylomandibular ligament 6. In a dried skull holes on the lingual aspects of the deciduous teeth are called Canals of hirshfield and zuckerland Gubernacular canals Haversian canals Volkmann canals 7. Keratinosomes(odland body) help in Exchange of fluids Nutrition Formation of intercellular agglutinating material Sensory perception 8. In which part of oral cavity mucous menbrane is the thinnest Labial mucosa Soft palate Floor of mouth Buccal mucosa 9. The most widely accepted theory for dentinal hypersensitivity is none of the above hydrodynamic transduction direct neural stimulation 10. When calcospherites fail to fuse during dentin matrix formation the result is formation of None of the above Irregular dentin Interglobular dentin Dead tracts 11. Wandering cells of pulp are Lymphoid wandering cells Undifferentiated mesenchymal cells Fibroblasts Histiocytes 12. The only tooth wider lingually than buccally is Mandi 1st molar Maillary second premolar Maxillary 1st molar Maxillary 2nd molar 13. Organisation centre that orchestrate surface morphogenesis is Enamel lamellae Gnarled enamel Enamel spindle Enamel knot 14. neonatal line is an accentuation of striae of Retzius Hunter schreger bands prominent DE junnction Perikymata 15. Which of the following jaw position is determined almost exclusively by the behavior of the musculature Intercuspal Postural Retruded contact Protruded contact 16. The long axis of mandilbular condyle is directed Anteromedially Posterolaterally Posteromedially Anterolaterally 17. Fovea palatini represent crypts in palatine tonsils orifice of minor palatine salivary glands tensor palatini insertion depressions along course of greater palatine nerve 18. Following root canal therapy, gutta percha extending beyond the apex of which tooth is most likely to impinge on the mental foramen? Mandibular 2nd premolar Mandibular 1st premolar Mandibular canine Mandibular 1st molar 19. Supporting cells of taste buds are called as Sustenticular cells Acini Von ebner cells Taste cells 20. Intermediate plexus is seen in the Cementum Dentin PDL Pulp Loading … Question 1 of 20
