How is pH of mouth related with tooth decay? Explain the cause of change in pH of mouth which leads to tooth decay. Also explain the role of tooth paste in preventing it.
Answers
Answer:
The human teeth are made up of calcium carbonate, which has a tendency to get spoiled or weakened under acidic conditions, I. e. when pH of mother is under 5, the teeth start decaying.
Toothpaste has a basic nature which neutralizes the excessive acid in the mouth this preventing tooth decay.
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The pH scale goes from 1 to 14, with a pH of 1 being the most acidic, and 14 being the most alkaline. A pH of 7 is neutral – the pH of pure water is very close to 7. At a pH of 5.5 the teeth begin to demineralize, putting them at risk for cavities. A healthy mouth is in a neutral pH range.To keep your teeth healthy, you must keep oral acidity to a minimum. Teeth can actually become stronger and remineralize when the mouth has a pH of 7.5 or above. All acidity weakens teeth, but it is the amount of time that acids are in contact with teeth that determines how much damage occurs.
The lower pH of the mouth creates an optimal environment for bad bacteria, which eventually causes tooth decay. the pH of your mouth can change depending on what foods you are eating.the basic compound of tooth enamel calcium phosphate is attacked by acids thus to prevent it you need to neutralize the effect.
So due to the acidic property our tooth got acidic the toothpastes are basic they neutralize the reaction so that our teeth stay in neutral state (7 pH ) . and it may not lead to tooth decay.
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