Question

How is tooth decay related to ph?how can it be prevented

Answer 1

When food enters our mouth the enzyme salivary amylase is released which digests starch present in food to acidic substance so the pH of mouth decreases , this substance corrodes the layer of Calcium phosphate ( Enamel ) . It can be prevented by using toothpastes so the pH of the mouth rises and the Enamel is saved from corroding.

Answer 2

eating chocolates lowers the ph of your mouth, makes the mouth acidic resulting in tooth decay. It can be prevented by using a toothpaste which is basic in nature. Toothpaste which is basic in nature neutralizes the excess pain in our tooth. Thus it can be prevented in this way.
Hope it helps!.