# Tooth #14 (FDI 26): upper left first molar

> FDI tooth 26 is the upper left first molar (quadrant 2): Universal #14, Palmer UL6. With neighbouring teeth and the full chart.

Source: https://hajto.de/en/tooth-chart/tooth-26  
Last updated: 2026-10-17T11:14:26Z  
German version: https://hajto.de/zahnschema/zahn-26.md

- **FDI (ISO 3950):** 26
- **Universal (ADA):** #14
- **Palmer:** └6 (UL6)
- **Name:** Upper left first molar
- **Tooth type:** First molar
- **Group:** Posterior tooth
- **Quadrant:** Quadrant 2: upper left (maxillary left)
- **Dentition:** Permanent dentition

## Neighbouring teeth

- [Tooth 25](https://hajto.de/en/tooth-chart/tooth-25.md): upper left second premolar
- [Tooth 27](https://hajto.de/en/tooth-chart/tooth-27.md): upper left second molar

## Opposing tooth (same position in the opposite jaw)

- [Tooth 36](https://hajto.de/en/tooth-chart/tooth-36.md): lower left first molar

[Interactive tooth chart](https://hajto.de/en/tooth-chart) · Reference for dentists and dental students. Notation according to the FDI two-digit system (ISO 3950) and the ADA Universal Numbering System.