The effectiveness of in‐office dental bleaching with and without sonic activation: A randomized, split‐mouth, double‐blind clinical trial.

Autor:	de Moura Martins, Leandro, de Azevedo Cardoso, Gabriel Guedes, de Lima, Liliane Motta, Rezende, Marcia, Sutil, Elisama, Reis, Alessandra, Loguercio, Alessandro D., da Silva, Luciana Mendonça
Předmět:	UREA DENTIN SPECTROPHOTOMETERS PAIN measurement DENTAL offices TOOTH sensitivity MANN Whitney U Test TREATMENT effectiveness RANDOMIZED controlled trials T-test (Statistics) TOOTH whitening PHARMACEUTICAL gels BLIND experiment CHI-squared test DESCRIPTIVE statistics ULTRASONIC therapy COMBINED modality therapy STATISTICAL sampling DATA analysis HYDROGEN peroxide DISEASE risk factors EVALUATION
Zdroj:	Journal of Esthetic & Restorative Dentistry; Mar2022, Vol. 34 Issue 2, p360-368, 9p, 1 Color Photograph, 1 Diagram, 3 Charts
Abstrakt:	Objective: This study was aimed at comparing the bleaching efficacy and bleaching sensitivity (BS) of two higher‐concentration in‐office bleaching gels (37% carbamide peroxide [CP] and 38% hydrogen peroxide [HP]) applied under two conditions: alone or in association with sonic activation. Methods: Fifty‐six volunteers were randomly assigned in the split‐mouth design into the following groups: CP, CP with sonic activation (CPS), HP, and HP with sonic activation (HPS). Two in‐office bleaching sessions were performed. Color was evaluated using Vita Classical, Vita Bleachedguide, and digital spectrophotometer at baseline and at 30 days post‐bleaching. Absolute risk and intensity of BS were recorded using two pain scales. All data were evaluated statistically (color changes [t test], BS [Chi‐square and McNemar test], and BS intensity [VAS; t test; NRS; Wilcoxon; α = 0.05]). Results: Significant and higher whitening was observed for HP when compared with CP (p < 0.04). However, higher BS intensity was observed in the former (p < 0.001). No significant difference was observed in whitening effect or BS when the HP or CP bleaching gels were agitated (sonic application) compared with when they were not (p > 0.05). Conclusion: The 37% CP gel demonstrated lower bleaching efficacy and lower BS compared with the 38% HP bleaching gel. The whitening effect was not influenced by the use of sonic activation. Clinical significance: The use of 37% CP gel did not achieve the same whitening effect when compared to 38% HP gel used for in‐office bleaching. The use of sonic activation offers no benefit for in‐office bleaching. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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