Question

Which of the following statements can be related to wisdom tooth?
A. It is a third set of molars.
B. It is a final set of molar
C. It is used for biting
D. It is a type of canine teeth

Answer 1

Hint: Teeths are the structures that are responsible for biting, cutting, tearing, grinding and mixing the food with saliva. Four types of teeths are present in the human mouth which performs different functions.

Complete answer:
Teeth are mainly of two types- temporary or milk teeth and permanent teeth. Temporary teeth are 20 in number whereas 32 permanent teeths are present in the mouth.
Permanent teeths are mainly of 4 types-
> Incisors-They are 8 in number which are responsible for cutting and biting,
> Canines–They are 4 in number which are mainly for tearing and are highly developed in carnivorous animals,
> Pre molars – They are 8 in number which performs the function of grinding and mixing the food and
> Last one is Molars – These are the largest of all, 12 in number which are responsible for chewing the food.
Wisdom tooth is the third set of molars which are present at the back of the mouth. Emergence of the wisdom tooth can cause pain, damage to other teeths, gum diseases etc. The molars are vestigial in present day humans i.e do not perform any function but they were functional in ancestral humans. There can be four in some humans, two in the upper jaw in each side and two in the lower jaw. Their emergence mostly starts at the age of 18 or around.

The correct answer is option (A) it is a third set of molar.

Note: Different shapes and structures of teeth help them in performing different functions like biting, tearing, cutting, grinding etc.