The biggest disadvantage is that the level of whitening is restricted by the amount of gel provided. Also, the gel provided is very abrasive 교정 전문 치과(even bleach), and could in some cases, weaken tooth enamel.
therapy on bright light
The biggest disadvantage is that the level of whitening is restricted by the amount of gel provided. Also, the gel provided is very abrasive 교정 전문 치과(even bleach), and could in some cases, weaken tooth enamel.
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