INBDE Oral Biology and Histology 3

Question 1

Which type of dentin is formed in response to irritation or injury?

Accepted Answer

Tertiary (reparative) dentin

Answer

Primary dentin

Answer

Secondary dentin

Answer

Interglobular dentin

Question 2

The principal fiber group that resists intrusive forces on a tooth is:

Accepted Answer

Oblique fibers

Answer

Alveolar crest fibers

Answer

Horizontal fibers

Answer

Apical fibers

Question 3

Amelogenesis imperfecta primarily affects which aspect of tooth development?

Accepted Answer

Enamel matrix formation and/or mineralization

Answer

Dentin matrix formation

Answer

Root formation

Answer

Pulp calcification

Question 4

Which enzyme found in saliva initiates carbohydrate digestion?

Accepted Answer

Salivary amylase (ptyalin)

Answer

Lingual lipase

Answer

Lysozyme

Answer

Kallikrein

Question 5

The zona pellucida of the enamel organ is also known as:

Accepted Answer

Stellate reticulum

Answer

Stratum intermedium

Answer

Outer enamel epithelium

Answer

Cervical loop

Question 6

Cementum is thickest at which region of the root?

Accepted Answer

Apical third

Answer

Cervical third

Answer

Middle third

Answer

Furcation area