Module 4 - Annotation

Primary Dentition

• 1st dentition

• “baby teeth” or deciduous teeth

• Exfoliate or shed (replaced by permanent teeth)

• 20 teeth

  • 8 incisors

  • 4 canines

  • 8 molars

Permanent Dentition

• Also called the secondary dentition

• “Adult teeth”

• 32 teeth

  • 8 incisors

  • 4 canines

  • 8 premolars

  • 12 molars

Mixed Dentition

• Primary and permanent teeth present

• 6-12 years of age

What are the different types of teeth?

• Incisors

• Canines

• Premolars

• Molars

Universal Tooth Designation System

Most widely used in the U.S.

International Standards Organization Designation System (ISO System)

• Used by the World Health Organization

• 2 digit code

Palmer Notation Method

• Not widely used

• Also known as the Military Tooth Numbering System

Universal System: Permanent Teeth

• Permanent teeth are numbered #1-32

• Starts with the maxillary right third molar

• Moves clockwise

• Ends with the mandibular right third molar

International System - Permanent Teeth

• 2 digit code

• First digit indicates the quadrant number (1-4)

• Second number indicates tooth in this quadrant with #1 starting at the midline and goes up to 8

International System - Primary Teeth

• 2 digit code

• First digit indicates the quadrant number (uses 5-8)

• Second number indicates tooth in quadrant with #1 starting at the midline and goes up to 5