If I brush my teeth twice a day and always use extra whitening toothpaste then why aren’t my teeth super white?
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Dentist here. White colour is the colour of your enamel not the whole tooth. There is a yellow coloured dentin below the enamel. Whitening toothpaste usually have more abrasive content leading to removal of enamel & expose the dentin in the process. In long run whitening toothpaste are bad for your teeth
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