Gonçalves Marcela Leticia Leal, Tavares Antonio Carlos da Silva, Mota Ana Carolina Costa da, Penna Luiz Alberto Plácido, Deana Alessandro Melo, Bussadori Sandra Kalil
Biophotonic Applied for Health Science Post Graduation Program, UNINOVE - Universidade Nove de Julho, São Paulo, SP, Brazil.
Restorative Dentistry, UNIMES- Universidade Metropolitana de Santos, Santos, SP, Brazil.
Braz Dent J. 2017 Nov-Dec;28(6):720-725. doi: 10.1590/0103-6440201701516.
The aim of the present study was to evaluate colorimetric changes and tooth sensitivity in adolescents and young patients submitted to tooth bleaching with 20% and 35% hydrogen peroxide. A randomized, controlled, clinical trial was conducted with 53 patients aged 11 to 24 years who were allocated to groups based on the use of the following commercial products: Whiteness HP - FGM® (35% hydrogen peroxide); Whiteness HP Blue Calcium - FGM® (35% hydrogen peroxide); and Whiteness HP Blue Calcium - FGM® (20% hydrogen peroxide). After the bleaching procedure, the visual analog scale was used to measure tooth sensitivity and the Vita Classical Shade guide was used to determine changes in tooth color. Statistical analysis involved the Friedman, Kruskal-Wallis and Student-Newman-Keuls tests, with p≤0.05 considered indicative of statistical significance. The addition of calcium contributed to a reduction in tooth sensitivity, especially when the lower concentration of hydrogen peroxide (20%) was used. Tooth sensitivity occurred in a transitory way and did not influence the tooth bleaching process. Significant differences in color were found after each of the two bleaching sessions. In-office tooth bleaching was considered an effective method for adolescents and young adults. Further studies in this population are necessary in order to fully evaluate the effects of bleaching in young teeth.
本研究的目的是评估11至24岁青少年和年轻患者使用20%和35%过氧化氢进行牙齿漂白后的比色变化和牙齿敏感度。对53名年龄在11至24岁的患者进行了一项随机对照临床试验，根据使用以下商业产品将他们分为不同组：Whiteness HP - FGM®（35%过氧化氢）；Whiteness HP Blue Calcium - FGM®（35%过氧化氢）；以及Whiteness HP Blue Calcium - FGM®（20%过氧化氢）。漂白程序完成后，使用视觉模拟量表测量牙齿敏感度，并使用Vita经典比色板确定牙齿颜色的变化。统计分析采用Friedman检验、Kruskal-Wallis检验和Student-Newman-Keuls检验，p≤0.05被视为具有统计学意义。添加钙有助于降低牙齿敏感度，尤其是在使用较低浓度（20%）的过氧化氢时。牙齿敏感度呈短暂性出现，且不影响牙齿漂白过程。在两次漂白疗程中的每一次之后，均发现了显著的颜色差异。诊室牙齿漂白被认为是青少年和年轻成年人的一种有效方法。为了全面评估漂白对年轻牙齿的影响，有必要对该人群进行进一步研究。
