Question

write full form of pH and importance of pH in daily life? give reason why does tooth decay start when pH of mouth is is lower then 5.5 anser in 70 words​

Answer 1

hey mate here is your answer

When the pH in the mouth falls below 5.5, tooth decay starts. Bacteria present in the mouth produce acid by degradation of sugar and food particles which remain in the mouth after eating. The acid produced in the mouth attack the enamel thereby, creating tooth decay.One way tooth decay can occur is when the pH level in the mouth begins to fall below 5.5. The neutral pH level is 7.0, so this will drop when acidic foods and drinks are consumed. When the mouth is exposed to long periods of low pH, it allows cavity causing bacteria to grow and develop

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Answer 2

Answer:

phenopthalein is the full form

tooth decay starts when ph of mouth is lower than 5.5 becoz some bacteria degrade food which present on our mouth..hence form acid....due to present of excessive acid tooth decay start ...to prevent it we should brush our teeth with toothpaste atleast 2 times