The most accepted theory of tooth eruption is____________?
The most accepted theory of tooth eruption is____________? A. Hydrodynamic theory B. Clone theoryC. Periodontal ligament traction theory D. Vascular theory
The most accepted theory of tooth eruption is____________? A. Hydrodynamic theory B. Clone theoryC. Periodontal ligament traction theory D. Vascular theory
Teeth with out antagonist if erupt is called____________? A. Stable B. Over eruptedC. Supra erupted D. Submerged
Movement of tooth to close the intermaxillary gap during eruption is due to____________? A. Physiological tooth migrationB. Active eruption C. Passive eruption D. None of the above
In mineralization which one of the following is known as Epitaxy ? A. Booster MechanismB. Seeding theory C. Alkaline Phosphatase theory D. Cartier/s Adenosine Triphosphate theory
The first sign of future deciduous teeth as a thickening of oral ectoderm appears at about_____________? A. 25th day of Intra uterine life B. 34th day of Intra uterine lifeC. 56th day of Intra uterine life D. 20 wks of…
The deciduous teeth can be differentiated from permanent teeth by_____________? A. Enamel prismatic arrangement B. Dentinal tubule arrangement C. Primary and secondary dentin D. Mineral content
Which type of collagen fibers demonstrates Chicken wire configuration ? A. Type I B. Type II C. Type IIID. Type IV
Accentuated incremental lines in dentin are______________? A. Incremental lines of retzius B. Incremental lines of von EbnerC. Contour lines lines of owen D. None of the above
Gubernacular canal and gubernacular cord are seen in relation to____________? A. Permanent teeth B. Deciduous teethC. Succedaneous teeth D. None of the above
The cells, which are responsible for removal of bone matrix in bone resorption, are_____________? A. Osteoblast B. Fibrocytes C. PolymorphsD. Osteoclasts