Universal tooth 28
Tooth 28: Lower Right First Premolar
In the Universal Numbering System, tooth 28 is the lower right first premolar (mandibular right first premolar). Its FDI (ISO 3950) designation is 44 and its Palmer designation is 4 in the lower right quadrant. It is a premolar in the lower arch with typically 1 root.
- Universal
- 28
- FDI / ISO 3950
- 44
- Palmer
- 4
- Type
- Premolar
- Arch & side
- lower, right
- Typical roots
- 1
Lower right · Permanent
Lower Right First Premolar
Mandibular Right First Premolar
- Universal
- 28
- FDI / ISO
- 44
- Palmer
- 4
- Type: Premolar
- Arch & side: Lower (mandibular), right
- Typical roots: 1 (varies between individuals)
Full conversion table
Print / save as PDFUpper right
| Tooth | Universal | FDI | Palmer |
|---|---|---|---|
| 8 | 11 | 1 | |
| 7 | 12 | 2 | |
| 6 | 13 | 3 | |
| 5 | 14 | 4 | |
| 4 | 15 | 5 | |
| 3 | 16 | 6 | |
| 2 | 17 | 7 | |
| 1 | 18 | 8 |
Upper left
| Tooth | Universal | FDI | Palmer |
|---|---|---|---|
| 9 | 21 | 1 | |
| 10 | 22 | 2 | |
| 11 | 23 | 3 | |
| 12 | 24 | 4 | |
| 13 | 25 | 5 | |
| 14 | 26 | 6 | |
| 15 | 27 | 7 | |
| 16 | 28 | 8 |
Lower left
| Tooth | Universal | FDI | Palmer |
|---|---|---|---|
| 24 | 31 | 1 | |
| 23 | 32 | 2 | |
| 22 | 33 | 3 | |
| 21 | 34 | 4 | |
| 20 | 35 | 5 | |
| 19 | 36 | 6 | |
| 18 | 37 | 7 | |
| 17 | 38 | 8 |
Lower right
| Tooth | Universal | FDI | Palmer |
|---|---|---|---|
| 25 | 41 | 1 | |
| 26 | 42 | 2 | |
| 27 | 43 | 3 | |
| 28 | 44 | 4 | |
| 29 | 45 | 5 | |
| 30 | 46 | 6 | |
| 31 | 47 | 7 | |
| 32 | 48 | 8 |