Reduce Whitening-Related Tooth Sensitivity
- Use a 10% carbamide peroxide solution, which is the lowest concentration available. This is equivalent to a 3.5% hydrogen peroxide solution.
- The higher the concentration of material used, the more the tray needs to be trimmed to avoid gingival irritation, and the greater the risk of tooth sensitivity. With a 10% carbamide peroxide solution, however, a nonscalloped tray that allows tissue contact can be utilized. This is because carbamide peroxide is an oral antiseptic designed to be applied to the tissue.
- It does not take much solution to whiten teeth, but the tray is key because it isolates the material from saliva. A small amount of solution should be applied to the inner wall of the tooth mold in the tray. Any excess solution should be wiped from the gingiva if a concentration higher than 10% carbamide peroxide is used.
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