Lakhmir Singh Solutions Class 10 Chemistry Solutions for Exercise in Chapter 2 - Chapter 2 Acids, Bases and Salts

Question 76 Exercise

(a) Explain the pH change as the cause of tooth decay. How can tooth decay caused by pH change be prevented?


(a)Tooth is made up of calcium phosphate and enamel is the hardest part of our body it covers the surface of teeth. If the pH in the mouth is below 5.5 it causes acidity and tooth decay starts. Acid has the power of decaying any material even if it is hard. It can be prevented by ourselves by brushing every two times a day after having food. Before going to bed it is necessary because bacterial action can take place easily while sleeping. Toothpaste containing more basicity can be used for brushing the teeth.

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