To protect tooth decay, we are advised to brush our teeth regularly. The nature of the toothpaste commonly used is __________in nature.
A
basic
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B
neutral
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C
acidic
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D
None of the above
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Solution
The correct option is A basic Tooth decay occurs when the pH of the mouth falls to 5.5 when we consume acidic foods and drinks, the pH within the mouth decreases and this can lead to dental plaque.
Thus, to protect tooth decay, we are advised to brush our teeth regularly as the toothpaste often contains basic components which help us to neutralize the excess acidic conditions in the mouth.