Question

means by
Tooth decay:​

Answer 1

Answer:

Tooth decay (dental caries) is damage to a tooth that can happen when decay-causing bacteria in your mouth make acids that attack the tooth's surface, or enamel. This can lead to a small hole in a tooth, called a cavity. If tooth decay is not treated, it can cause pain, infection, and even tooth loss.

Answer 2

Answer:

tooth decay ph value of tooth is less than 5.5 then it leads to tooth decay...

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