Question

explain tooth decay​

Answer 1

Answer:

It is caused when a bacteria acts on left over food and form an acid which damages the enamel.

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Answer 2

Tooth decay is the destruction of your tooth enamel, the hard, outer layer of your teeth. ... Plaque, a sticky film of bacteria, constantly forms on your teeth. When you eat or drink foods containing sugars, the bacteria in plaque produce acids that attack tooth enamel.

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