Tooth #14 – Upper left first molar
6th tooth back from the middle, upper left.
- International
- 26
- Palmer
- 6
- Type
- Molar
- Roots
- 3
- Canals
- usually 4
- Comes in
- 6–7 years
The first big back tooth on the upper left, right behind the premolars.
- In front: #13 upper left second premolar
- Behind: #15 upper left second molar
- Same tooth on the other side: #3 upper right first molar
- Bites against: #19 lower left first molar
None. Adult molars come in behind the baby teeth instead of replacing one.
Usually three roots (1–4) and usually four canals (1–4).
Upper first molars: roots, canals and the studies behind the counts →
This tooth is #14 in the US and 26 in the international (FDI) system, where the 2 means the upper left quarter and the 6 is its place counting from the front.
In the international system, 14 is the upper right first premolar (#5).
And in the US, #26 is the lower right lateral incisor.
American Dental Association 2024; Harris 2005; American Dental Association 2012. Full titles are on the About page.