Permanent tooth reference
Tooth #18: Lower left second molar
In FDI notation, tooth #18 is 37. It is a second molar in the lower left part of the mouth.
Tooth #18 at a glance
- Location
- lower left
- Tooth type
- second molar
- FDI notation
- 37
- Adjacent teeth
- #17 and #19
- Opposing tooth
- #15
- Wisdom tooth
- No
What does tooth #18 identify?
Tooth #18 identifies the lower left second molar in the Universal numbering system used in the United States. It is a back tooth. Its matching FDI designation is 37.
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.