This review of difference concentrations of hydrogen peroxide for in-office dental bleaching on colour change and bleaching sensitivity included 25 RCTs. The findings indicate that low and medium hydrogen peroxide concentrations had lower risk and intensity of bleaching sensitivity and no difference in colour change efficacy compared with high concentrations.[read the full story...]
Tooth whitening: Does light activation improve efficacy?
This review of the effect of light activation on tooth whitening efficacy included 21 RCTs finding that neither the efficacy nor the risk of tooth sensitivity of in-office bleaching was influenced by the use of light, regardless of the hydrogen peroxide concentration.[read the full story...]