MFDS Oral Biology

Question 1

Which cells are responsible for forming dentine?

Accepted Answer

Odontoblasts

Answer

Ameloblasts

Answer

Cementoblasts

Answer

Osteoblasts

Question 2

What is the predominant inorganic component of enamel?

Accepted Answer

Hydroxyapatite

Answer

Calcium carbonate

Answer

Fluorapatite

Answer

Tricalcium phosphate

Question 3

Which type of collagen predominates in the pulp and dentine matrix?

Accepted Answer

Type I

Answer

Type II

Answer

Type III

Answer

Type IV

Question 4

Hertwig's epithelial root sheath is derived from which structure?

Accepted Answer

Enamel organ

Answer

Dental follicle

Answer

Dental papilla

Answer

Alveolar bone

Question 5

Which zone of the dental pulp is immediately deep to the odontoblast layer?

Accepted Answer

Cell-free zone of Weil

Answer

Central zone

Answer

Cell-rich zone

Answer

Subodontoblastic plexus

Question 6

Perikymata are surface features found on which dental tissue?

Accepted Answer

Enamel

Answer

Cementum

Answer

Dentine

Answer

Pulp