Dentovio public answer
Which baby tooth is letter A?
In the Universal Numbering System, primary tooth A is the primary upper right second molar (primary maxillary right second molar). Its FDI (ISO 3950) designation is 55 and its Palmer designation is E 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
- See source page
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Query patterns
- Which baby tooth is letter A?
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- Which tooth is FDI 55?
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- FDI 55 to Universal tooth number
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- Which tooth is Palmer E Upper Right?
- Palmer E Upper Right to Universal
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- Primary Upper Right Second Molar tooth number
- Universal A FDI 55 Palmer E
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