Tooth Numbering Systems (Page 2 of 2) in pdf

TOOTH NUMBERING SYSTEMS

Permanent Teeth

Primary or Deciduous Teeth

Each tooth is numbered by the quadrant (1 to 4)

Each tooth is numbered by quadrant (5 to 8) to

and by the tooth within the quadrant (1 to 8).

continue with the permanent quadrant numbers.

The teeth are numbered within each quadrant

Quadrant Numbers

(1 to 5).

1 Maxillary right

2 Maxillary left

Quadrant Numbers

3 Mandibular left

5 Maxillary right

4 Mandibular right

6 Maxillary left

7 Mandibular left

Tooth Numbers Within Each Quadrant.

8 Mandibular right

Start with number 1 at the midline (central

incisor) to number 8, third molar.

Tooth Numbers Within Each Quadrant.

Number 1 is the central incisor, and number 5

Designation. The digits are pronounced sepa-

is the second primary molar.

rately. For example, ‘‘two-five’’ (25) is the

maxillary left second premolar, and ‘‘four-two’’

Designation. The digits are pronounced sepa-

(42) is the mandibular right lateral incisor.

rately. For example, ‘‘eight-three’’ (83) is the

mandibular right primary canine, and ‘‘six-

five’’ (65) is the maxillary left second primary

molar.

Palmer System

Permanent Teeth

Primary or Deciduous Teeth

With number 1 for each central incisor, the teeth

Upper case letters A through E are used instead

in each quadrant are numbered to 8, the third

of the numbers. Examples are the mandibular

molar. To identify individual teeth, horizontal

left canine C and the maxillary right first

and vertical lines are drawn to indicate the

primary molar D .

quadrant. For example, the left maxillary first

premolar is 4 , the right mandibular first and

second molars are 76 . An entire quadrant may

be represented by the use of the letter Q, for

example, the maxillary right quadrant is Q .

Adapted from Wilkins EM. Clinical Practice of the Dental Hygienist, 9th ed. Baltimore: Lippincott Williams & Wilkins,

2005.

Tooth Numbering Systems Page 2

Related Articles

Related forms

Related Categories