Dentovio public answer
Which tooth is number 1?
In the Universal Numbering System, tooth 1 is the upper right third molar (maxillary right third molar). Its FDI (ISO 3950) designation is 18 and its Palmer designation is 8 in the upper right quadrant. It is a molar in the upper arch with typically 3 roots.
- Cluster
- Tooth numbering reference
- Last verified
- 2026-07-08
- Reviewer
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Query patterns
- Which tooth is number 1?
- Tooth 1: Upper Right Third Molar
- Which tooth is 1?
- What is tooth number 1 in FDI and Palmer notation?
- Which tooth is FDI 18?
- What is FDI 18 in Universal numbering?
- FDI 18 to Universal tooth number
- ISO 3950 tooth 18
- Which tooth is Palmer 8 Upper Right?
- Palmer 8 Upper Right to Universal
- Upper Right Palmer 8 tooth
- UR Palmer 8 permanent tooth
- Upper Right Third Molar tooth number
- Universal 1 FDI 18 Palmer 8
- which tooth is number 1?
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- upper right third molar
- maxillary right third molar
- fdi 18