State whether the following statements are True or False.

1. Wisdom tooth appears at the age of 5-6 years when the child starts going to school.

2. The temporary set of teeth includes incisors, canines and premolars only.

3. The ducts from the salivary glands open into the duodenum.

4. Saliva changes starch into maltose.

1. False
   Reason — Wisdom tooth appears at the age of 17-20 years.

2. False
   Reason — Children have only twenty teeth, called primary, temporary or milk teeth. They include the same 10 teeth in the upper and lower jaw:

   1. 4 Incisors
   2. 2 Canines
   3. 4 Molars

3. False
   Reason — The ducts from the salivary glands open into the mouth.

4. True
   Reason — Saliva contains an enzyme called amylase which converts starch int maltose.