Dental lamina is active up to_______________?
A. 1 year
B. 2 years
C. 3 years
D. 4 years
Oral Histology
Ectodermal cells in tooth bud are responsible for_______________?
Ectodermal cells in tooth bud are responsible for_______________?
A. Determination of shape of crown and root
B. Formation of periodontal ligament
C. Formation of cementum
D. Formation of pulp
In considering the process of eruption, the pre-functional eruptive stage of a tooth begins when the_____________?
In considering the process of eruption, the pre-functional eruptive stage of a tooth begins when the_____________?
A. Bud stage begins
B. Cap stage begins
C. Bell stage begins
D. Dental lamina begins forming
Hertwig’s epithelial root sheath is made up of_______________?
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
Following is derivative of dental lamina____________?
Following is derivative of dental lamina____________?
A. Epithelial rests of Malassez
B. Enamel pearls
C. Rests of serrae
D. All of the above
Accessory canals result from____________?
Accessory canals result from____________?
A. Defects in cementogenesis
B. Dividing epithelial bridges
C. Break in Hertwig’s root sheath
D. Adherent epithelial rests
A supernumerary tooth results from a deviation during_____________?
A supernumerary tooth results from a deviation during_____________?
A. Initiation
B. Differentiation
C. Apposition
D. Calcification
Blood supply of ameloblast for most of its life cycle comes form_______________?
Blood supply of ameloblast for most of its life cycle comes form_______________?
A. Dental papilla
B. Reduced enamel organ
C. Dental Sac
D. Dental pulp
The successors of deciduous teeth develops form_______________?
The successors of deciduous teeth develops form_______________?
A. Successional lamina
B. Dental lamina
C. Stellate reticulum
D. Neutral ectodermal cells
Outer and inner enamel epithelium first seen in____________?
Outer and inner enamel epithelium first seen in____________?
A. Bud stage
B. Advanced bell stage
C. Cap stage
D. Bell stage