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  • Cold light whitening

Cold light whitening

  • Com blanquejar les dents científicament?

    To know how to whiten scientifically, first of all, we need to know: What kind of teeth are white? What is the original color of teeth? 1.Teeth color = Enamel + Dentin What color should the teeth be? It must not the color of white paper. In fact, the color of teeth…
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