Question

why does touth decay start when the Ph of mouth is lower than 5.5​

Answer 1

Required Answer

When the pH of the mouth is lower than 5.5 the tooth starts to decay. This is because of the bacteria that is present in our mouth that produces acid by the remains of sugar and food particles in the mouth after eating. The enamel is attacked by the acid produced in our mouth resulting in the decay of tooth.

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Additional Information

What is pH?

• pH is a scale to measure how acidic or basic a substance is.
• pH 7 is neutral.
• pH below 7 is acidic.
• pH above 7 is basic.

What are the parts of a tooth?

• Enamel → It is a substance that forms a shell type structure around the top of the tooth. It's function is to protect the tooth from any sort of damage or decay.
• Dentin → It reinforces the enamel and provides support to the structure of the tooth.
• Pulp → It's function is to provide nutrients to the tooth and protect it from potential dangers.
• Cementum → It's function is to cover and protect the root dentin and to also provide attachment to the periodontal fibers.

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