Category: Oral Histology

Accessory canals result from____________?

A. Defects in cementogenesis
B. Dividing epithelial bridges
C. Break in Hertwig’s root sheath
D. Adherent epithelial rests

Hamad Enamel 01/08/2020

A. Enamel spindles
B. Gnarled enamel
C. Incremental lies of woven
D. Incremental lines of retzius

A. 45 to 50%
B. 50 to 55%
C. 55 to 60%
D. 60 to 65%

A. 1st molar
B. 2nd premolar
C. 1st premolar
D. 2nd molar

A. Between temporal and sphenoid bone
B. Between hamular notch and mandible
C. In apical area of a tooth
D. As a part of deep cervical fascia

Hamad Pulp 27/07/2020

A. 6th week of IU
B. 8th week of IU
C. 10th week of IU
D. 18th week of IU

Hamad Dentin 26/07/2020

A. Ca3 (Po4)2 CaCo3
B. 3Ca (Po4)2 Ca(OH)2
C. CaPo4 Ca(OH)2
D. None of the above

Hamad Enamel 25/07/2020

A. Tuftelin
B. Sheathlin
C. Enamelin
D. Amelogenin

Hamad Pulp 25/07/2020

A. Cell degenerated zone
B. Cell rich zone
C. Cell regenerated zone
D. cell free zone

A. Bell-bud-cap
B. Cap-bell-bud
C. Bud-cap-bell
D. Bell-cap-bud