Tooth Numbering Systems

TOOTH NUMBERING SYSTEMS

The three tooth designation systems in general use are the Universal, adopted by the American Dental

Association; the F.D.I. (or International), adopted by the Fe ´ de ´ ration Dentaire Internationale; and the

Palmer.

Universal or ADA System

Permanent Teeth

Primary or Deciduous Teeth

Start with the right maxillary third molar

Use continuous upper case letters A through T

(number 1) and follow around the arch to the

in the same sequence as for permanent teeth:

left maxillary third molar (16); descend to the

right maxillary second molar (A) around to the

left mandibular third molar (17); and follow

left maxillary second molar (J); descend to the

around to the right mandibular third molar (32).

left mandibular second molar (K); and around

to the right mandibular second molar (T).

International or F.D.I. System

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Parent category: Medical