Q1 Tooth enamel is one of the hardest substances in our body.How does it undrgo damage due to eating chocalate and sweets?How does toothpaste prevent this damage?
Answers
It is not that our teeth are being damaged due to eating chocolate and sweets , We all know that chocolates are very sticky so What happens that when we eat sweets+ chocolates and we don't care our teeth and don't brush it the chocolate sticks in our teeth and when we sleep our mouth is closed the cross of air is been stopped so it creates germs and cavity. Toothpaste prevents cavity because the toothpaste contains some minerals which fights with the germs .
Answer:
Sugar present in chocolates and sweets gets broken to acids by bacteria present in the mouth. This lowers the pH in the mouth. Tooth enamel is made up of calcium phosphate, which gets corroded when the pH in the mouth is below 5.5. To prevent tooth enamel from decay, toothpaste is used because it is alkaline and neutralises the acid produced in the mouth and helps to prevent lowering of pH in mouth.
Explanation: