Universal Tooth Numbering System

There are several tooth numbering systems used around the world. In the United States, the Universal System is the most commonly employed.¹ The primary dentition is identified by the letters of the alphabet, A-T, while the permanent dentition is identified by the numbers 1-32. Table 3 outlines the Universal Tooth Numbering System.

Table 3. Universal Tooth Numbering System.

Table 3. Universal Tooth Numbering System.