# Tooth #11 (FDI 23): upper left canine

> FDI tooth 23 is the upper left canine (quadrant 2): Universal #11, Palmer UL3. With neighbouring teeth and the full chart.

Source: https://hajto.de/en/tooth-chart/tooth-23  
Last updated: 2026-10-17T11:14:05Z  
German version: https://hajto.de/zahnschema/zahn-23.md

- **FDI (ISO 3950):** 23
- **Universal (ADA):** #11
- **Palmer:** └3 (UL3)
- **Name:** Upper left canine
- **Tooth type:** Canine
- **Group:** Anterior tooth
- **Quadrant:** Quadrant 2: upper left (maxillary left)
- **Dentition:** Permanent dentition

## Neighbouring teeth

- [Tooth 22](https://hajto.de/en/tooth-chart/tooth-22.md): upper left lateral incisor
- [Tooth 24](https://hajto.de/en/tooth-chart/tooth-24.md): upper left first premolar

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

- [Tooth 33](https://hajto.de/en/tooth-chart/tooth-33.md): lower left canine

[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.