Why pH value of saliva decreases after the meal. Why do we use tooth paste the avoid.
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Hyy Dude
Just like the rest of your body, your mouth needs a balanced pH. The pH level of your saliva can drop below 5.5 when you're drinking acidic beverages. When this happens, the acids in your mouth start to demineralize (break down) tooth enamel. If the tooth enamel becomes too thin, the dentin is exposed.
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