1. Following root canal therapy, gutta percha extending beyond the apex of which tooth is most likely to impinge on the mental foramen? Mandibular canine Mandibular 1st premolar Mandibular 2nd premolar Mandibular 1st molar 2. Which papillae are completely keratinised Foliate Filiform Circumvallate Fungiform 3. The crown of which premolar is wider faciolingually than mesiodistally and has two cusps that are approximately equal in heigh mandibular 2nd maxillary 2nd mandibular 1st maxillary 1st 4. keratohyaline granules are present in Stratum spinosum Stratum granulosum Stratum basale Prickle cell layer 5. Merkel cells are found in which of the following tissue Papillary layer of dermis Reticular layer of dermis Hypodermis Epidermis 6. Which of the following premolars does not develop from four lobes Mandibular 1st premolar Mandibular 2nd premolar Maxillary 2nd premolar Maxilary 1st premolar 7. Diagnodent is based on the Visible light Nano technology Sound wave Laser 8. enamel spindle is thin leaf like faults between enamel rods extending from enamel surface to DEJ Odontoblastic processes that cross the DEJ into the enamel hypomineralised structures of enamel rods projecting between adjacent groups of enamel rods from DEJ surface projection of Striae of Retzius 9. At what age the calcification of deciduous teeth starts Second month of fetal life Fourth month of fetal life Seventh month of fetal life Sixth month of fetal life 10. Weils zone is Zone of differentiating cells Zone adjacent to dentinal tubules in pulp Cell rich zone in pulp Cell free zone in pulp 11. The widest incisal or occlusal embrassures is normally found between which of the following permanent maxillary teeth lateral incisors and canine central incisors central and lateral incisors first and 2nd PM 12. When in proper position relative to the plane of occlusion the crown of a mandibular second molar inclines mesially and lingually distally and facially mesially and facially distally and lingually 13. Compact bone and cellular cementum are similar as they contain Lacunae and elastic fibers Canaliculi and incremental lines Collagen fibers and blood vessels Sharpey’s fibers and elastic fibers 14. In which part of oral cavity mucous menbrane is the thinnest Labial mucosa Buccal mucosa Soft palate Floor of mouth 15. The fiber bundle that is most numerous and constitutes the main attachment of the tooth is Horizontal group Oblique group Alveolar crest group Apical group 16. The center of the sphere in the curve of Monson lies at Glabella Lambda Bregma Nasion 17. Which of the following intrinsic muscle fibers flattens and broadens the tongue Longitudinal Vertical Transverse Horizontal 18. Primary saliva is isotonic. It is modified to become hypotonic while coming into oral cavity in Striated ducts Intercalated ducts major secretory ducts Canaliculi 19. The upper compartment of the temporomandibular joint is that space between the inferior and superior retrodiscal lamina ondylar head and the disc disc and the articular fossa and eminence retrodiscal tissue and capsular ligament 20. The crown of a mandibular lateral incisor compared to the crown of a mandibular central incisor in the same mouth is best described as more symmetrical wider mesiodistally narrower mesiodistally having a smoother lingual surface Loading … Question 1 of 20
