Question

why does tooth decay start when pH of mouth is lower than 5.5​

Answer 1

Answer:

as when pH is lower than 5.5 its nature becomes more acidic so it decay the tooth.

Explanation:

as bacteria in mouth eat up food in mouth and produce acids which decay tooth and form plaques or cavities in teeth. that's why we have to brush our teeth 2 times a day.

Answer 2

Explanation:

tooth decay starts when bacteria in the mouth create acids after eating through the oxidation of sugar and food in the mouth. tooth decay starts when the pH of mouth is less then 5.5 . in addition to f good particles masses to teeths bind....

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