Oral Histology
Question: Hammock ligament is present_______________?
- 1. Between temporal and sphenoid bone
- 2. Between hamular notch and mandible
- 3. In apical area of a tooth
- 4. As a part of deep cervical fascia
Question: The most accepted theory of tooth eruption is____________?
- 1. Hydrodynamic theory
- 2. Clone theory
- 3. Periodontal ligament traction theory
- 4. Vascular theory
Question: Teeth with out antagonist if erupt is called____________?
- 1. Stable
- 2. Over erupted
- 3. Supra erupted
- 4. Submerged
Question: Movement of tooth to close the intermaxillary gap during eruption is due to____________?
- 1. Physiological tooth migration
- 2. Active eruption
- 3. Passive eruption
- 4. None of the above
Question: In mineralization which one of the following is known as Epitaxy ?
- 1. Booster Mechanism
- 2. Seeding theory
- 3. Alkaline Phosphatase theory
- 4. Cartier/s Adenosine Triphosphate theory
Question: The first sign of future deciduous teeth as a thickening of oral ectoderm appears at about_____________?
- 1. 25th day of Intra uterine life
- 2. 34th day of Intra uterine life
- 3. 56th day of Intra uterine life
- 4. 20 wks of Intra uterine life
Question: The deciduous teeth can be differentiated from permanent teeth by_____________?
- 1. Enamel prismatic arrangement
- 2. Dentinal tubule arrangement
- 3. Primary and secondary dentin
- 4. Mineral content
Question: Which type of collagen fibers demonstrates Chicken wire configuration ?
- 1. Type I
- 2. Type II
- 3. Type III
- 4. Type IV
Question: Accentuated incremental lines in dentin are______________?
- 1. Incremental lines of retzius
- 2. Incremental lines of von Ebner
- 3. Contour lines lines of owen
- 4. None of the above
Question: Gubernacular canal and gubernacular cord are seen in relation to____________?
- 1. Permanent teeth
- 2. Deciduous teeth
- 3. Succedaneous teeth
- 4. None of the above