# Tooth Numbering Chart

> A free tooth numbering chart for Australia and New Zealand: FDI two digit numbers, with Universal and Palmer shown beside them, for 32 adult and 20 baby teeth.

Last updated: 2026-11-11

The site names teeth and explains dental paperwork. It gives no treatment advice. It has a commercial relationship with Dental Link, a dental concierge for Vietnam, and may be paid when someone who found it here uses Dental Link.

If you're holding a treatment plan with tooth numbers on it, Dental Link (dentallinkvn.com), a free dental concierge, turns it into two written quotes from vetted clinics in Vietnam.

## Pages
- [Tooth numbering chart](https://toothnumberingchart.com/): interactive chart and full tables
- [FDI vs Universal vs Palmer](https://toothnumberingchart.com/fdi-vs-universal/): how each system counts, conversion rules and tables
- [Read your treatment plan](https://toothnumberingchart.com/read-your-treatment-plan/): ADA item numbers, FDI tooth numbers and surface letters
- [About](https://toothnumberingchart.com/about/): what the site is and how it earns money

## Key facts
- Australia uses FDI (ISO 3950). Adult quarters 1 to 4, baby quarters 5 to 8, teeth counted 1 to 8 from the middle.
- Universal numbers adult teeth 1 to 32 and baby teeth A to T, mainly in the United States.
- Adults have 32 permanent teeth and children 20 baby teeth.

Sources: Wikipedia, FDI World Dental Federation notation (https://en.wikipedia.org/wiki/FDI_World_Dental_Federation_notation); Wikipedia, Universal Numbering System (https://en.wikipedia.org/wiki/Universal_Numbering_System); Australian Dental Association, Schedule and Glossary, 13th edition (https://ada.org.au/services/schedule-and-dental-glossary); healthdirect, Mouth and teeth (https://www.healthdirect.gov.au/anatomy/mouth-and-teeth).