why does tooth decay start when the pH of the mouth is lower 5.5?
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7
Answer:
Bacteria in the mouth create acids after eating through the oxidation of sugar and food particles in the mouth. Tooth decay starts when the mouth's pH is below 5.5. ... Since plaque coats the teeth, saliva can not reach the tooth layer to neutralize the acid.
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1
Answer:
Because food and sugar in our teeth mix and form the acid which cowrod The outermost layer of a teeth which is called enamel . it is made up of calcium phosphate
Explanation:
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