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What is the formula for milk teeth?

Published in Dental Anatomy 2 mins read

The dental formula for milk teeth is 2102/2102.

This formula represents the number of each type of tooth in one half of the upper and lower jaw. Specifically, it shows the number of incisors, canines, premolars, and molars in the order I-C-P-M.

Understanding the Milk Teeth Formula

Here's a breakdown of what the formula 2102/2102 means:

  • 2: Represents the number of incisors. There are 2 incisors on each side of both the upper and lower jaw, totaling 8 incisors in the mouth.
  • 1: Represents the number of canines. There is 1 canine on each side of both the upper and lower jaw, totaling 4 canines in the mouth.
  • 0: Represents the number of premolars. Milk teeth do not have premolars.
  • 2: Represents the number of molars. There are 2 molars on each side of both the upper and lower jaw, totaling 8 molars in the mouth.

Comparison with Permanent Teeth

It is important to note that the dental formula for permanent teeth is different, including premolars and a third molar (wisdom tooth). The formula for permanent teeth is typically 2123/2123. This indicates that adult teeth have additional types of teeth, namely premolars, and an extra molar compared to milk teeth.

Key Points About Milk Teeth

  • Milk teeth, also known as deciduous teeth, are the first set of teeth that appear in humans.
  • They are eventually replaced by permanent teeth.
  • The absence of premolars and third molars is a defining characteristic of milk teeth.
  • The formula provides a concise way to understand the arrangement of these teeth.