Permanent tooth reference
Tooth #1: Upper right third molar
In FDI notation, tooth #1 is 18. It is a third molar in the upper right part of the mouth.
Tooth #1 at a glance
- Location
- upper right
- Tooth type
- third molar
- FDI notation
- 18
- Adjacent teeth
- #2
- Opposing tooth
- #32
- Wisdom tooth
- Yes
What does tooth #1 identify?
Tooth #1 identifies the upper right third molar in the Universal numbering system used in the United States. It is a back tooth commonly called a wisdom tooth. Its matching FDI designation is 18.
A treatment plan or benefit statement may use the number alone. Confirm the number with the dental office if the document is unclear; a tooth number identifies location and does not explain a diagnosis or treatment by itself.