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DENTAL FORMULA OF HUMAN BEINGS

OR

DIFFERENT TYPES OF TEETH AND THEIR NUMBER IN AN ADULT HUMAN

  • All human teeth are not of the same types that are known as heterodont teeth.
  • There are four different types of teeth. Those are incisors, canine, premolar and molar.
  • Incisor teeth are shovel-shaped, used in nibbling, cutting and tearing.
  • Canine teeth are very sharper and pointed compare to other teeth, used for tearing and shearing.
  • Premolar and Molar teeth are used for chewing and grinding, possessing a border surface.
  • There are two different types of teeth develop in human: milk teeth those are childhood teeth, having the number of 20 in a child of 5 years age, which are replaced by permanent teeth. This type of dental development is called as Diphyodont.
  • The total number of teeth is 32 and is represented by the below dental formula:

I: 2/2; C: 1/1; PM: 2/2; M: 3/3

Where,

  1. I = Incisor teeth
  2. C = Canine teeth
  3. PM = Premolar teeth
  4. M = Molar teeth
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