# Tooth #26 (FDI 42): lower right lateral incisor

> FDI tooth 42 is the lower right lateral incisor (quadrant 4): Universal #26, Palmer LR2. With neighbouring teeth and the full chart.

Source: https://hajto.de/en/tooth-chart/tooth-42  
Last updated: 2026-10-17T11:14:28Z  
German version: https://hajto.de/zahnschema/zahn-42.md

- **FDI (ISO 3950):** 42
- **Universal (ADA):** #26
- **Palmer:** 2┐ (LR2)
- **Name:** Lower right lateral incisor
- **Tooth type:** Lateral incisor
- **Group:** Anterior tooth
- **Quadrant:** Quadrant 4: lower right (mandibular right)
- **Dentition:** Permanent dentition

## Neighbouring teeth

- [Tooth 41](https://hajto.de/en/tooth-chart/tooth-41.md): lower right central incisor
- [Tooth 43](https://hajto.de/en/tooth-chart/tooth-43.md): lower right canine

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

- [Tooth 12](https://hajto.de/en/tooth-chart/tooth-12.md): upper right lateral incisor

[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.