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Universal tooth 13

Tooth 13: Upper Left Second Premolar

In the Universal Numbering System, tooth 13 is the upper left second premolar (maxillary left second premolar). Its FDI (ISO 3950) designation is 25 and its Palmer designation is 5 in the upper left quadrant. It is a premolar in the upper arch with typically 1 root.

Universal
13
FDI / ISO 3950
25
Palmer
5
Type
Premolar
Arch & side
upper, left
Typical roots
1
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Upper left · Permanent

Upper Left Second Premolar

Maxillary Left Second Premolar

Universal
13
FDI / ISO
25
Palmer
5
  • Type: Premolar
  • Arch & side: Upper (maxillary), left
  • Typical roots: 1 (varies between individuals)

Full conversion table

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Upper right

ToothUniversalFDIPalmer
8111
7122
6133
5144
4155
3166
2177
1188

Upper left

ToothUniversalFDIPalmer
9211
10222
11233
12244
13255
14266
15277
16288

Lower left

ToothUniversalFDIPalmer
24311
23322
22333
21344
20355
19366
18377
17388

Lower right

ToothUniversalFDIPalmer
25411
26422
27433
28444
29455
30466
31477
32488