Question

(a) Name three constituents of plaque, other than the food remains.
(b) State the time during the day when condition is most favorable for the
process of tooth decay.
(c) Name the parts of the teeth that are affected due to dental caries.​

Answer 1

a) Acid, saliva and bacteria.

b) Time 4.0

c) Tooth decay can affect all layers of a tooth. It can take three years for a cavity to form in the strong outer layer of tooth enamel. Decay progresses more quickly through the dentin (middle layer) to pulp (innermost layer). Pulp contains a tooth's nerve endings and blood supply.

Answer 2

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