Dental Formula

  • Dental formula formilk teethin humans is 2120/2120. It means that each half of upper jaw and lower jaw has 2 incisors, 1 canine and 2 premolars. Molars are absent in milk teeth. There are 20 teeth in the milk teeth set.
  • Dental formula for permanent teethin human is. It means that each half of upper jaw and lower jaw has 2 incisors, 1 canine, 2 premolars, and 3 molars.
  • The dental formula in dogs (carnivore) is
  • The dental formula in rabbits (herbivore)is

Please explain me this?

We have two jaws upper jaw and lower jaw. Each jaw can be divided into two halves. This dentition formula shows that in each half how many teeth are present. As you stated the order correctly the no. represent incisor then canine premolar and molar consecutively. In case of human permanent teeth:
2123
2123
 It means 2 incisior 1 canine, 2 premolar and 3 molars. then total no of teeth in a half= 2+1+2+3=8 then in complete jaw the no  will be multiplied by 2= 8*2=16
Same goes for lower jaw, then no of teeth in lower jaw=16
​ Total no of teeth in adult human =32
Same calculation will go for other examples also.
 

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