The PH Value of four pastes namely A. B. C. And D is 6.6,6.8,7 and 7.2 respectively. Among these pastes which is suitable for clean teeth? Justify your answer?
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6.6 since our mouth ph5.6 so it will nullyfying and clean without sohowing any minute corrosiveness
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7.2 bcoj paste have basic medium to remove acids in the teeth
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