Dental Numbering Systems Flashcards

Vocabulary-style flashcards covering the Universal, Palmer, and FDI dental numbering systems based on lecture notes.

Universal Notation System

Also known as the 'American system,' it is commonly used in the United States and uses numbers $1 - 32$ for permanent teeth and uppercase letters $A$ through $T$ for primary teeth.

Palmer Notation System

A system often used by orthodontists that divides the mouth into four quadrants using symbols, with numbers $1 - 8$ for permanent teeth and letters $A - E$ for primary teeth to determine position.

Federation Dentaire Internationale (FDI)

A two-digit notation system where teeth are identified by quadrant and digit, pronounced individually (e.g., 'one-one' or 'two-one').

Universal System - Primary Teeth Labeling

Uses uppercase letters $A$ through $J$ for the maxillary teeth (starting from the right second molar) and $K$ through $T$ for the mandibular teeth (starting from the left second molar).

Universal System - Permanent Teeth Labeling

Uses numbers $1$ through $16$ for maxillary teeth starting from the right third molar, and numbers $17$ through $32$ for mandibular teeth starting from the left third molar.

ADA Recommendation 1968

The year the American Dental Association officially recommended the 'universal' numbering system.

FDI Permanent Teeth Quadrants

Quadrants are numbered $1$ (Upper Right), $2$ (Upper Left), $3$ (Lower Left), and $4$ (Lower Right), with teeth in each labeled $1 - 8$.

FDI Deciduous Teeth Quadrants

Also known as baby teeth, these use quadrant numbers $5$ (Upper Right), $6$ (Upper Left), $7$ (Lower Left), and $8$ (Lower Right), with teeth in each labeled $1 - 5$.

Example: # 14MO

A shorthand notation in the Universal system indicating the second large molar (tooth #14) with a cavity or restoration on the Mesial-Occlusal (MO) surfaces.