Effect of experimental bleaching agent with nano-bioactive m
The inclusion of bioactive nanoparticles (n-Bm) into the bleaching agents did not affect the whitening effectiveness, as well as the risk and intensity of tooth sensitivity (TS) between groups. However, the results of the absolute risk of TS were low for both in-office gels used.

This clinical study aimed to evaluate the effect of incorporating bioactive nanoparticles (n-Bm) inside an in-office bleaching gel on the risk and intensity of tooth sensitivity (TS) and on bleaching effectiveness.

Sixty-six participants were selected and randomly assigned into two groups: control–only in-office gel and experimental-in-office gel with n-Bm. Teeth were bleached in two sessions. TS was recorded using a VAS and NRS. The color change was evaluated by subjective (VITA Classical and VITA Bleachedguide) and objective (Easyshade spectrophotometer) methods at baseline and 30?days after the end of treatment.

No significant differences between the groups were observed in the risk and intensity of TS, as well as in the color change for any color measurement.

Despite no significant differences between groups, both experimental bleaching agents present suitable results with low values for TS.

Journal of Esthetics and Restorative Dentistry
Source: https://doi.org/10.1111/jerd.12790