Question

7. Why does tooth decay occur by change in PH??
please give me answer fast ​

Answer 1

Answer:

ph level begins to fall to below that is 5.5 ...

Explanation:

one way tooth can decay can occur is when the ph level in the mouth begins to fall below 5.5 . the neutral pH level is 7.0,so this will drop when acidic foods and drinks are consumed . when the mouth is exposed to long periods of low PH , it allows cavity causing bacteria to grow and develop .

Answer 2

As acid reacts with the tooth