Question

important of PH in stopping decay of teeth

Answer 1

Tooth enamel made up of calcium phosphate is the hardest substance in the human body. but it corrode or tooth decay start when PH of the mouth is lower than 5.5

Answer 2

The base that is found in our mouth(saliva or salivary amylase)helps us prevent teeth decay to an extent but not to much. The foods that we eat decompose into sugar along with numerous other things. This sugar then settles down in our teeth to cause teeth decay or cavity. The toothpaste or saliva neutralizes.