Question

Tooth decay is caused by the presence of a :

Answer 1

Answer:

Explanation:tooth decay is caused due to the presence of harmful bacteria which enters in our mouth which is not washed well.

Answer 2

Tooth decay is caused by biofilm (dental plaque) lying on the teeth and maturing to become cariogenic (causing decay). Certain bacteria in the biofilm produce acid in the presence of fermentable carbohydrates such as sucrose, fructose, and glucose.