Dentovio public answer
Which tooth is number 4?
In the Universal Numbering System, tooth 4 is the upper right second premolar (maxillary right second premolar). Its FDI (ISO 3950) designation is 15 and its Palmer designation is 5 in the upper right quadrant. It is a premolar in the upper arch with typically 1 root.
- Cluster
- Tooth numbering reference
- Last verified
- 2026-07-08
- Reviewer
- See source page
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Query patterns
- Which tooth is number 4?
- Tooth 4: Upper Right Second Premolar
- Which tooth is 4?
- What is tooth number 4 in FDI and Palmer notation?
- Which tooth is FDI 15?
- What is FDI 15 in Universal numbering?
- FDI 15 to Universal tooth number
- ISO 3950 tooth 15
- Which tooth is Palmer 5 Upper Right?
- Palmer 5 Upper Right to Universal
- Upper Right Palmer 5 tooth
- UR Palmer 5 permanent tooth
- Upper Right Second Premolar tooth number
- Universal 4 FDI 15 Palmer 5
- which tooth is number 4?
- tooth 4
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- upper right second premolar
- maxillary right second premolar
- fdi 15