# Tooth #2 (FDI 17): upper right second molar

> FDI tooth 17 is the upper right second molar (quadrant 1): Universal #2, Palmer UR7. With neighbouring teeth and the full chart.

Source: https://hajto.de/en/tooth-chart/tooth-17  
Last updated: 2026-10-17T11:14:48Z  
German version: https://hajto.de/zahnschema/zahn-17.md

- **FDI (ISO 3950):** 17
- **Universal (ADA):** #2
- **Palmer:** 7┘ (UR7)
- **Name:** Upper right second molar
- **Tooth type:** Second molar
- **Group:** Posterior tooth
- **Quadrant:** Quadrant 1: upper right (maxillary right)
- **Dentition:** Permanent dentition

## Neighbouring teeth

- [Tooth 16](https://hajto.de/en/tooth-chart/tooth-16.md): upper right first molar
- [Tooth 18](https://hajto.de/en/tooth-chart/tooth-18.md): upper right third molar (wisdom tooth)

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

- [Tooth 47](https://hajto.de/en/tooth-chart/tooth-47.md): lower right second 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.