Question

which of the following I not the constituent of plaque?
0 Acid
(i) Saliva
(111) Bacteria
(IV) Base​

Answer 1

The correct answer is : (IV) Base.

Explanation:

• Tooth plaque is a biofilm comprising of :

1. Bacteria.
2. Bacterial metabolic products.
3. Salivary constituents.
4. Epithelial cells located in the buccal cavity.
5. Cells of the immune system.

• A dental plaque is caused when food particles remain stuck in the crevices of the teeth.
• This promotes the growth of bacteria which utilise those food particles as a source of their nutrition.
• The bacteria forms a biofilm ( a habitat where the bacteria survives), which is called the dental plaque.
• The metabolic products produced by the bacteria are acidic in nature.
• Base : Absent inside the plaque.

Answer 2

Plaque is formed in the base of teeth

Explanation:

• It is a soft sticky area that is formed in the base of teeth which contain bacteria like Streptococcus mutans
• During intake of sugar containing food, the bacteria present in the plaque eats the sugar and produce acid that damages the enamel of the teeth but repeated attack produce cavity in that region.
• It can also decay the tooth and causes gum related diseases.