ANATOMY

Detailed explanation-1: -There are 32 total permanent teeth, which are composed of two incisors, one canine, two premolars, and three molars in each of the four quadrants of the oral cavity. Usually the first permanent tooth to erupt into the oral cavity is the mandibular first molar.

Detailed explanation-2: -A full set of adult teeth will amount to 32 teeth in total. This includes the wisdom teeth, which grow in at the back of the mouth. These normally grow in much later and can be expected between 17 and 21 years. For some people wisdom teeth don’t grow in at all.

Detailed explanation-3: -The permanent teeth are called that for a reason: they are permanently in the mouth unless, trauma, tooth decay, gum disease, or age take them away from you. The average adult has about 32 permanent teeth in the mouth. Some adults only have 28, which depends on how many wisdom teeth a person has.

Detailed explanation-4: -Permanent teeth are also known as adult teeth or secondary teeth. The permanent teeth start to develop in the jaws at birth and continue after a child is born. By about 21 years, the average person has 32 permanent teeth, including 16 in the upper jaw and 16 in the lower jaw.

Detailed explanation-5: -Secondary teeth come in (erupt) when children begin to lose their primary (baby) teeth between the ages of 6 and 11 years. The last permanent teeth usually erupt between the ages of 12 and 21.