The Universal numbering system is a dental notation system for associating information to a specific tooth,[1] and is commonly used in the United States.
The designations "left" and "right" on the chart correspond to the patient's left and right, respectively.
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Orientation of the chart is traditionally "patient's view", i.e. patient's right corresponds to notation-chart right. The designations "left" and "right" on the chart correspond to the patient's left and right, respectively.
| Permanent Teeth | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| upper left | upper right | ||||||||||||||
| 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
| 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 |
| lower left | lower right | ||||||||||||||
| Deciduous teeth (baby teeth) | |||||||||||||||
| upper left | upper right | ||||||||||||||
| J | I | H | G | F | E | D | C | B | A | ||||||
| K | L | M | N | O | P | Q | R | S | T | ||||||
| lower left | lower right | ||||||||||||||
| Alternate system for Deciduous teeth | |||||||||||||||
| upper left | upper right | ||||||||||||||
| 10d | 9d | 8d | 7d | 6d | 5d | 4d | 3d | 2d | 1d | ||||||
| 11d | 12d | 13d | 14d | 15d | 16d | 17d | 18d | 19d | 20d | ||||||
| lower left | lower right | ||||||||||||||