Question

to protect from tooth decay the nature of tooth paste should be acid or base or neutral ​

Answer 1

Answer:

Tooth decay starts when pH of mouth is less than 5.5.

Bacteria present in mouth produce acids by degradation of sugar and left over food.Acids  can dissolve enamel causing tooth decay. So,toothpastes are used which are generally basic in nature which neutralises the excess acid and prevent tooth decay.

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