INBDE Oral Biology and Histology

Question 1

Which cells are primarily responsible for producing dentin?

Accepted Answer

Odontoblasts

Answer

Ameloblasts

Answer

Cementoblasts

Answer

Osteoblasts

Question 2

What is the primary inorganic component of enamel?

Accepted Answer

Hydroxyapatite

Answer

Calcium carbonate

Answer

Calcium fluoride

Answer

Tricalcium phosphate

Question 3

Which structure connects the enamel organ to the oral epithelium during tooth development?

Accepted Answer

Dental lamina

Answer

Stellate reticulum

Answer

Stratum intermedium

Answer

Outer enamel epithelium

Question 4

Hunter-Schreger bands in enamel are best described as:

Accepted Answer

Alternating zones of enamel rods cut in different planes

Answer

Incremental lines of enamel formation

Answer

Hypomineralized areas near the DEJ

Answer

Cracks caused by acid etching

Question 5

Which zone of the dental pulp contains the highest concentration of collagen fibers?

Accepted Answer

Pulp core

Answer

Odontoblastic zone

Answer

Cell-free zone of Weil

Answer

Cell-rich zone

Question 6

Cementum differs from bone primarily because cementum:

Accepted Answer

Is avascular

Answer

Contains Haversian systems

Answer

Is derived from the dental follicle

Answer

Undergoes continuous remodeling