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How does basic toothpaste protect teeth?

Answer and explanation

Correct answer: By neutralising acid formed in the mouth

Bacteria in the mouth can convert food particles, especially sugars, into acids. These acids lower the local pH and may attack tooth enamel. Basic toothpaste contains mildly alkaline substances that react with and neutralise excess acid, helping to reduce acidity and protect enamel. It does not dissolve enamel, make the pH zero, or increase acid. Therefore option A correctly describes neutralisation.

Related tags

ToothpasteNeutralisationTooth DecayAlkalisAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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