Name different types of teeth and their number in an adult human.

There are four different types of teeth present in the mouth of an adult human. They are as follows:

(i) Incisors: The eight teeth within the front are incisors. There are four incisors each within the upper jawbone and therefore the mandible. They are meant for cutting.

(ii) Canines: The sharp teeth on either side of the incisors are canines. They are four in number, two each placed within the upper jawbone and therefore the mandible. They are meant for tearing.

(iii) Premolars: Next to the canines the premolars are present. They are eight in number, four each placed within the upper jawbone and therefore the mandible. They are meant for grinding.

(iv) Molars: they're present at the top of the jaw, next to the premolars. There are twelve molars, six each placed within the upper jawbone and therefore the mandible.

Hence, the dental formula in humans is 

This means each half the upper jawbone and therefore the mandible has 2 incisors, 1 canine, 2 premolars, and three molars. So, the number of permanent teeth in an adult human is 32.