Universal 11
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Breath & Mouth
Tooth number crosswalkAdult tooth numbering chart: Universal vs FDI
Look up an adult tooth number in Universal or FDI notation. Explore 32 permanent tooth positions, see both codes and names, and print the comparison chart.
A reference for 32 standard permanent tooth positions. Confirm the numbering system in your dental note first. This chart does not show which teeth you have or identify a treatment site.
A number needs a system
Look up a number from a dental note
If the note does not say Universal or FDI, ask your dental team. The same number can refer to different teeth.
Selected position
Universal
FDI
Reference position only. Confirm the system and tooth with your dental team.
Browse by named position
Four quadrant shelves, two number systems
Right and left mean the person’s own right and left. Each shelf lists teeth from the middle toward the back, not their physical spacing. U means Universal; FDI is labeled separately.
The icons are original symbols for tooth groups, not anatomically exact drawings. Third molars are the positions commonly called wisdom teeth.
1
Upper right
FDI quadrant 1
Middle → back · positions 1–8
2
Upper left
FDI quadrant 2
Middle → back · positions 1–8
4
Lower right
FDI quadrant 4
Middle → back · positions 1–8
3
Lower left
FDI quadrant 3
Middle → back · positions 1–8
Why the system matters
Two meanings of “tooth 11”
FDI 11
Upper right central incisor
Universal equivalent: 8Do not infer the system from the number alone, the country you are in or the shape of these icons.
Full text reference
Permanent tooth number conversion table
| Tooth | U | FDI |
|---|---|---|
| Central incisor | 8 | 11 |
| Lateral incisor | 7 | 12 |
| Canine | 6 | 13 |
| First premolar | 5 | 14 |
| Second premolar | 4 | 15 |
| First molar | 3 | 16 |
| Second molar | 2 | 17 |
| Third molar | 1 | 18 |
| Tooth | U | FDI |
|---|---|---|
| Central incisor | 9 | 21 |
| Lateral incisor | 10 | 22 |
| Canine | 11 | 23 |
| First premolar | 12 | 24 |
| Second premolar | 13 | 25 |
| First molar | 14 | 26 |
| Second molar | 15 | 27 |
| Third molar | 16 | 28 |
| Tooth | U | FDI |
|---|---|---|
| Central incisor | 25 | 41 |
| Lateral incisor | 26 | 42 |
| Canine | 27 | 43 |
| First premolar | 28 | 44 |
| Second premolar | 29 | 45 |
| First molar | 30 | 46 |
| Second molar | 31 | 47 |
| Third molar | 32 | 48 |
| Tooth | U | FDI |
|---|---|---|
| Central incisor | 24 | 31 |
| Lateral incisor | 23 | 32 |
| Canine | 22 | 33 |
| First premolar | 21 | 34 |
| Second premolar | 20 | 35 |
| First molar | 19 | 36 |
| Second molar | 18 | 37 |
| Third molar | 17 | 38 |
Make the most of this tool
Look up a tooth number with its numbering system
Choose Universal or FDI before entering a number from a dental note. Or select a clearly labeled position from the quadrant shelves. Review the tooth name and both codes, then print the full chart or download the selected-position reference.
Does tooth number 11 mean the same tooth in Universal and FDI?
No. Universal 11 is the upper left canine. FDI 11 is the upper right central incisor. Ask your dental team which numbering system the note uses before interpreting a number.
Does this chart include baby teeth, extra teeth or missing-tooth records?
No. It covers the 32 standard permanent tooth positions, including third molars. It does not tell which teeth you have. Primary teeth, extra teeth, implants, treatment details and personal charting are outside this reference.
Behind this tool
Research checked October 9, 2026. Number mappings checked against the ADA’s permanent-tooth reference. Original icons and shelf layout; no source chart reproduced. Primary teeth, extra teeth, Palmer notation and tooth surfaces are outside this tool.