Question

Why does tooth decay starts when the PH of mouth is less than 5.5 how do you prevent tooth decay

Answer 1

Explanation:

if the ph of mouth is less than 5.5 ,then the concentration of acid in our mouth is higher , which causes the tooth to decay. tooth decay can be prevented by brushing our teeth twice a day.

Answer 2

Answer:

Bacteria present in the mouth produce acids by degradation of

sugar and food particles remaining in the mouth after eating. Using toothpastes, which

are generally basic, for cleaning the teeth can neutralize the excess acid and prevent

tooth decay.

pls mrk as brainliest