Brushing required by our teeth on a regular basis. If the teeth are not regularly, they become covered with a sticky yellowish layer of food particles and bacteria. Since the layer covers the teeth, an alkaline liquid is secreted by the glands of our mouth cannot reach the teeth surface to neutralise the acid formed by the action of bacteria which hence results in tooth decay.
1. The yellowish layer layer formed over teeth is called dental plaque.
a. TRUE
b. FALSE
2. The alkaline liquid is secreted by
a. Adrenal gland
b. Salivary gland
c. Thyroid gland
d. Pituitary glands
3. Brushing done daily can be way to get rid of dental plaque.
a. TRUE
b. FALSE
4. What is tooth decay?
a. Acids released by bacteria damages the teeth
b. Acids release by bacteria produces the teeth
c. Acids released by gums damages the teeth
d. Acids released by the gums hold the teeth
5. The major reason for tooth decay is
a. Chocolates
b. Sweets
c. Cold drinks
d. All of the above
