The universal numbering system uses a unique letter or number for each tooth. The uppercase letters A through T are used for primary teeth and the numbers 1 - 32 are used for permanent teeth. The tooth designated "1" is the right maxillary third molar and the count continues along the upper teeth to the left side.
The permanent dentition is composed of 32 teeth with 16 in each arch. There are eight teeth in each quadrant, composed of two incisors (central and lateral), a canine, two premolars, and three molars. These teeth are referred to as numbers, 1 (central incisor) to 8 (3 rd molar or ‘wisdom’ tooth).
Teeth numbers 1 – 16 are on the upper jaw. Teeth numbers 17 – 32 are in the lower jaw. As an example, teeth numbers 1, 16, 17, and 32 are your wisdom teeth. Teeth numbers 14 and 15 are your upper left molars.
Tooth numbering
- 3rd molar (wisdom tooth).
- 2nd molar (12-yr molar).
- 1st molar (6-yr molar).
- 2nd bicuspid (2nd premolar).
- 1st bicuspid (1st premolar).
- ... (more items)
There are normally a total of 32 permanent (secondary) teeth in adults, with 16 per jaw and eight in each quadrant, which consists of (distal to mesial) 3 :
- three molars "wisdom teeth" refer to the third molars
,There are four main categories of human
teeth. They are: 1. Incisors 2. Canines 3. Premolars 4
