Clinical evaluation of home bleaching using trays constructed with or without reservoirs

Fábio Herrmann Coelho-de-Souza, Celso Afonso Klein-Júnior, Leandro Azambuja Reichert, Renata Zago, Gabriela Figueredo Braga, Michele Souza Pontes


The aim of this study was to evaluate the clinical performance of 16% carbamide peroxide home vital bleaching, using trays constructed with or without reservoirs, and analyze the postoperative hypersensitivity. This was a randomized, double-blind and split-mouth study. Two examinators evaluated 11 and 21 teeth from eleven patients (Kappa 0,75). Right side of upper stone models received reservoirs before trays were constructed, left side didn’t. Home bleaching was performed through two weeks, 6 hours-day. After this time, 11 and 21 teeth was evaluated again by the same examinators. Patients were asked about postoperative hypersensitivity. Data were statistically analyzed by Fisher’s exact test (p>0,05), and didn’t show any statistically significant difference between trays with or without reservoirs. All patients related postoperative hypersensitivity during bleaching time. Home bleaching technique was effective on dental bleaching, with or without reservoirs on the trays. Home bleaching promoted postoperative hypersensitivity in all cases.

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