A compound 'P' forms the enamel of teeth. It is the hardest substance of the body. It doesn't dissolve in water but gets corroded
A compound 'P' forms the enamel of teeth. It is the hardest substance of the body. It doesn't dissolve in water but gets corroded when the pH is lowered below 5.5.
(i) Identify the compound 'P'.
(ii) How does it undergo damage due to eating of chocolate and sweets ? What should we do to prevent tooth decay ?
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(i) The compound 'P' is calcium phosphate.
(ii) It undergoes damage when the bacteria present in the mouth work on the leftover food particles and produce acid.
To prevent tooth decay, toothpaste (basic) is used which neutralises the excess acid.
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