Question

explain role of ph in tooth decay

Answer 1

it decay our tooth. to prevent this we can use toothpaste after every meal

Answer 2

Nature requires a delicate balance. The saliva in a healthy mouth has a pH of 7.1 – just slightly more basic than pure water. The body has ways of regulating the pH level

Certain foods increase the acidity of the mouth – drop the pH level. This includes sugary drinks, snacks, and some grains. Saliva can help neutralize the acid, but the pH of saliva can become more acidic after eating acidic foods. It can take between a few minutes to a few hours for the pH of the mouth to neutralize. In that time, the lower pH of the mouth creates an optimal environment for bad bacteria, which eventually causes tooth decay.

Fortunately (or unfortunately), the pH of your mouth can change drastically depending on what foods you are eating. We know that soda, energy drinks, and candies can bring on the bad bacteria. Here are 5 foods that are surprisingly acidic (lower the pH of your saliva) and 5 foods that are surprisingly alkaline (raise the pH of your saliva).