# Tooth #29 (FDI 45): lower right second premolar

> FDI tooth 45 is the lower right second premolar (quadrant 4): Universal #29, Palmer LR5. With neighbouring teeth and the full chart.

Source: https://hajto.de/en/tooth-chart/tooth-45  
Last updated: 2026-10-17T11:12:51Z  
German version: https://hajto.de/zahnschema/zahn-45.md

- **FDI (ISO 3950):** 45
- **Universal (ADA):** #29
- **Palmer:** 5┐ (LR5)
- **Name:** Lower right second premolar
- **Tooth type:** Second premolar
- **Group:** Posterior tooth
- **Quadrant:** Quadrant 4: lower right (mandibular right)
- **Dentition:** Permanent dentition

## Neighbouring teeth

- [Tooth 44](https://hajto.de/en/tooth-chart/tooth-44.md): lower right first premolar
- [Tooth 46](https://hajto.de/en/tooth-chart/tooth-46.md): lower right first molar

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

- [Tooth 15](https://hajto.de/en/tooth-chart/tooth-15.md): upper right second premolar

[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.