Bleaching efficacy of in-office bleaching with violet light using low-concentration hydrogen peroxide nanoparticulate photocatalyst gel: A randomized controlled trial
| dc.contributor.author | Garcia Castro, Gustavo | |
| dc.contributor.author | Araújo Pinto, Palena | |
| dc.contributor.author | Favoreto, Michael Willian | |
| dc.contributor.author | Reis, Alessandra | |
| dc.contributor.author | Viviana-Mora, Maria | |
| dc.contributor.author | de Cássia Mendonça de Miranda, Rita | |
| dc.contributor.author | Milan Cardenas, Andres Felipe | |
| dc.contributor.author | Loguercio, Alessandro D. | |
| dc.contributor.author | de Jesus Tavarez, Rudys Rodolfo | |
| dc.date.accessioned | 2025-03-27T06:27:18Z | |
| dc.date.available | 2025-03-27T06:27:18Z | |
| dc.date.issued | 2024-11-23 | |
| dc.description.abstract | Objective This randomized controlled trial aimed to evaluate the bleaching efficacy and tooth sensitivity (TS) of participants submitted to different application protocols of in-office bleaching with violet light using 6 % hydrogen peroxide (HP) nanoparticulate photocatalyst gel. Materials and methods Sixty-six participants were randomized and bleached using either a 6 % HP (Nano White, DMC), and/or violet light (Bright Max Whitening, MMOptics), according to the following protocols: 1) only violet light (VIOL); 2) only bleaching gel application (BG) and; 3) combined bleaching gel application + violet light (BG+VIOL). The bleaching efficacy was evaluated with the Vita Easyshade spectrophotometer, Vita Classical and Vita Bleachedguide scales. The risk and intensity of TS were recorded using a 0–10 visual analogue scale (VAS) and a 0–4 numerical scale (NRS). Color change and intensity of TS values were compared using one-way ANOVA and Tukey's test were used. The absolute risk of TS was compared using the Chi-square test (α = 0.05). Results A significant and higher degree of bleaching was observed in the BG and BG+VIOL groups compared to the VIOL group (p < 0.003). Despite no significant differences in the risk (p > 0.07) and intensity (p > 0.28) of TS among groups, a higher risk of TS was observed in the BG and BG+VIOL groups. Conclusions Using VIOL reduced the risk of TS but did not improve bleaching. However, BG+VIOL with low-concentration HP nanoparticulate photocatalyst gel achieved equal efficacy and was less likely to cause TS compared to BG. | |
| dc.identifier.issn | 15721000 | |
| dc.identifier.uri | https://dspace.uhemisferios.edu.ec/handle/123456789/2058 | |
| dc.language.iso | en | |
| dc.publisher | Photodiagnosis and Photodynamic Therapy | |
| dc.relation.ispartofseries | V. 50 | |
| dc.title | Bleaching efficacy of in-office bleaching with violet light using low-concentration hydrogen peroxide nanoparticulate photocatalyst gel: A randomized controlled trial | |
| dc.title.alternative | Eficacia blanqueadora del blanqueamiento en consultorio con luz violeta utilizando un gel fotocatalizador de nanopartículas de peróxido de hidrógeno de baja concentración: un ensayo controlado aleatorizado | |
| dc.type | Article |