Permanent tooth reference
Tooth #20: Lower left second premolar
In FDI notation, tooth #20 is 35. It is a second premolar in the lower left part of the mouth.
Tooth #20 at a glance
- Location
- lower left
- Tooth type
- second premolar
- FDI notation
- 35
- Adjacent teeth
- #19 and #21
- Opposing tooth
- #13
- Wisdom tooth
- No
What does tooth #20 identify?
Tooth #20 identifies the lower left second premolar in the Universal numbering system used in the United States. It is a back tooth. Its matching FDI designation is 35.
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.