Dental Hypersensitivity Clinical Trial
Official title:
Efficacy in the Reduction of Hypersensitivity During Home Whitening With 16% Carbamide Peroxide Applied on Alternate Days: a Randomized Clinical Trial
The concentration of 16% carbamide peroxide is the highest concentration that European regulations allow for use in home whitening (Council directive 2011/84/EU). This concentration allows for faster results, but instead patients may suffer more frequently from dental sensitivity. The most commonly described side effect of all whitening procedures is the appearance of dentin hypersensitivity, hence the efforts to counteract or overcome this adverse effect. The objective of the study is to clinically evaluate the difference in dental hypersensitivity produced by home dental whitening treatment using 16% carbamide peroxide in a tray for two hours daily applied daily or every other day for three weeks.
Volunteers will be instructed to use the whitening gel once a day for 2 hours, completing a total of 3 weeks of whitening procedure. Depending on the randomization, the bleaching procedure will be performed every other day or daily. In the upper arch, the teeth to be whitened will be from 15 to 25. The evaluations of efficacy, dental sensitivity and satisfaction will be carried out in the upper and lower arch. The color will be recorded before, weekly for 1 month, 6 months and 12 months after finishing the treatment. Shade assessment using the subjective method will be recorded with the Vita Classical color scale (Vita Zahnfabrik, Bad Säckingen, Germany), it will also be determined with the Vita 3D-MASTER scale (Vita Zahnfabrik, Bad Säckingen, Germany). For objective evaluation, the Vita Easyshade spectrophotometer (Vita Zahnfabrik, Bad Säckingen, Germany) will be used, according to the CIEL*a*b* system. ;
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