MICROANATOMY

Previous
Next

DIGESTIVE SYSTEM

TEETH

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Each quadrant of the permanent dentition contains ____ teeth, whereas each quadrant of the primary dentition contains ____ teeth.
A
32; 20
B
16; 10
C
8; 5
D
10; 16
Explanation: 

Detailed explanation-1: -Development of the Primary Dentition. The primary dentition consists of 20 teeth (Figure 1). Each dental arch contains 10 teeth, namely four incisors, two canines, and four molars.

Detailed explanation-2: -These teeth start to erupt at the age of 13 years. There are 16 teeth in each arch and eight in each quadrant. Incisors are the eight middlemost teeth (4 up, 4 down) both on the upper and lower jaw. Canines are pointed teeth which are another four teeth (2 up, 2 down) just outside the incisors.

Detailed explanation-3: -The premolars, also called premolar teeth, or bicuspids, are transitional teeth located between the canine and molar teeth. In humans, there are two premolars per quadrant in the permanent set of teeth, making eight premolars total in the mouth. They have at least two cusps.

There is 1 question to complete.
Previous
Next