The effectiveness of in-office dental bleaching with and without sonic activation: A randomized, split-mouth, double-blind clinical trial. | Semantic Scholar (2024)

In conclusion, moistening the enamel did not significantly impact tooth color changes, however, the repositioning guide color influenced the tooth bleaching measured instrumentally, except for ΔE00 .

Tooth whitening is a form of dental treatment and should be completed as part of a comprehensive treatment plan developed by a dentist after an oral examination, and when used appropriately, tooth-whitening methods are safe and effective.

The active application of a 20% HP gel did not improve BE and TS, and significant whitening was observed in both groups after 30 days of clinical evaluation.

The use of 37% carbamide peroxide 30 min/day may decrease the time of tray use in at-home protocol for whitening because it presents equivalent results to 10% carbamia peroxide 4 h/day.

The incorporation of 5% potassium nitrate into in-office bleaching gels does not reduce the risk of bleaching sensitivity, but it reduces its intensity slightly without jeopardizing color change.

In-office tooth bleaching using CP resulted in less bleaching sensitivity than HP, without compromising efficacy and longevity over a 6-month follow-up period.

The inclusion of n-Bm into the bleaching agents did not affect the whitening effectiveness, as well as the risk and intensity of TS between groups, and the results of the absolute risk of TS were low for both in-office gels used.

In this study, 37% CP resulted in reduced tooth sensitivity but decreased the tooth bleaching effectiveness, however, both bleaching agents resulted in high levels of patient satisfaction.

Administration of the gel containingNE before the in-office dental bleaching did not reduce the TS and did not interfere in the bleaching effect, and the use of desensitizing gel containing NEdid not reduce in- office bleaching-induced tooth sensitivity.

The 37% carbamide peroxide gel and the 35% hydrogen peroxide Gel were effective and there was no reversal of tooth color within 15 days; however, a more accentuated bleaching effect was observed immediately after bleaching.

The results of this study support the findings that a CC 35 percent hydrogen peroxide gel can reduce TS during in-office dental bleaching and reduce the intensity of TS without jeopardizing the bleaching effectiveness.

Violet LED alone produced the lowest bleaching effect, but enhanced HP bleaching results, and no differences were found in enamel Ca/P ratio among treatments, regardless of evaluation times.

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