Medical MCQs

5099 MCQs  (Page 258 of 510)

The zone of dentin most recently formed and uncalcified is known as____________?
A. Mantle dentin
B. Circumpulpal dentin
C. Predentin
D. Secondary dentin
Dentinogenesis by odontoblasts first begins at_____________?
A. Pulpal end
B. Cusp tip
C. Tooth bud stage
D. Cervical area
Outer and inner enamel epithelium first seen in____________?
A. Bud stage
B. Advanced bell stage
C. Cap stage
D. Bell stage
The successors of deciduous teeth develops form_______________?
A. Successional lamina
B. Dental lamina
C. Stellate reticulum
D. Neutral ectodermal cells
A supernumerary tooth results from a deviation during_____________?
A. Initiation
B. Differentiation
C. Apposition
D. Calcification
Accessory canals result from____________?
A. Defects in cementogenesis
B. Dividing epithelial bridges
C. Break in hertwig’s root sheath
D. Adherent epithelial rests
Following is derivative of dental lamina____________?
A. Epithelial rests of malassez
B. Enamel pearls
C. Rests of serrae
D. All of the above
Hertwig’s epithelial root sheath is made up of_______________?
A. Outer and inner enamel epithelium
B. Stratum intermedium
C. Stellate reticulum
D. Hyaline layer of hopewell-smill