Diagram Of The Tooth Numbering System

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Diagram of the Tooth Numbering System
(viewed as if looking into the mouth)
Central Incisor
Single
Lateral Incisor
Labial Surface
Rooted
9
7 8
Cuspid
10
6
11
1st Bicuspid (Bi-Rooted)
5
E F
G
D
12
2nd Bicuspid (Single Rooted)
C
H
4
I
B
13
Buccal (Facial)
J
A
Lingual
Surface
1st Molar
3
Surface
14
2
Tri-Rooted
2nd Molar
15
Mesial
Surface
1
Maxillary Arch
3rd Molar
16
(Upper Jaw)
Distal
Surface
Top Right (TR)
Top Left (TL)
Quadrant I
Quadrant II
Right
Left
Bottom Right (BR)
Bottom Left (BL)
Quadrant IV
Quadrant III
Mandibular Arch
3rd Molar
(Lower Jaw)
32
17
31
18
Bi-Rooted
2nd Molar
30
Lingual
Occlusal
Surface
K
T
Surface
19
1st Molar
L
S
29
20
M
R
2nd Bicuspid
N
28
Q
P
O
Single
21
Rooted
27
22
1st Bicuspid
26
23
24
25
Cuspid
Single
Lateral Incisor
Rooted
Central Incisor
Adult Dentition =
Incisal Surface
Permanent teeth 1-32
Child Dentition = Primary
teeth A-T
Median Line
Wisdom Teeth = 1, 16, 17,
and 32
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