DANB CDA Dental Anatomy and Physiology

Question 1

How many permanent teeth does a complete adult dentition contain?

Accepted Answer

32

Answer

A complete adult dentition contains 32 permanent teeth: 8 incisors, 4 canines, 8 premolars, and 12 molars (including 4 wisdom teeth).

Question 2

What is the hardest substance in the human body?

Accepted Answer

Tooth enamel

Answer

Tooth enamel is the hardest substance in the human body, composed of approximately 96% hydroxyapatite mineral, making it even harder than bone.

Question 3

Which tooth surface faces the tongue?

Accepted Answer

Lingual

Answer

The lingual surface is the tooth surface facing the tongue. The term comes from 'lingua,' the Latin word for tongue.

Question 4

What is the function of the periodontal ligament?

Accepted Answer

To anchor the tooth root to the alveolar bone

Answer

The periodontal ligament (PDL) is a group of specialized connective tissue fibers that attach the tooth root cementum to the alveolar bone, providing support and slight mobility.

Question 5

What is the universal numbering system designation for the upper right third molar?

Accepted Answer

Tooth #1

Answer

In the universal numbering system, numbering starts with the upper right third molar as tooth #1 and proceeds around the arch to the upper left third molar (#16), then continues to the lower left third molar (#17) through the lower right third molar (#32).

DANB CDA Test Practice Test

DANB CDA Test Practice Test

DANB CDA Dental Anatomy and Physiology