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Comparison of effectiveness and sensitivity using two in-office bleaching protocols for a 6% hydrogen peroxide gel in a randomized clinical trial

dc.contributor.authorVildosola P.
dc.contributor.authorVera F.
dc.contributor.authorRamirez J.
dc.contributor.authorRencoret J.
dc.contributor.authorPretel H.
dc.contributor.authorOliveira O.B.
dc.contributor.authorTonetto M.
dc.contributor.authorMartin J.
dc.contributor.authorFernandez E.
dc.date.accessioned2020-09-02T22:29:49Z
dc.date.available2020-09-02T22:29:49Z
dc.date.issued2017
dc.identifier10.2341/16-043-C
dc.identifier.citation42, 3, 244-252
dc.identifier.issn03617734
dc.identifier.urihttps://hdl.handle.net/20.500.12728/6472
dc.descriptionObjective: The aim of this blinded and randomized clinical trial was to compare two application protocols (one 36-minute application vs three 12-minute applications). We then assessed the effectiveness of the bleaching and any increase in sensitivity that was induced by bleaching via a split-mouth design. Methods and Materials: Thirty patients were treated. One group had a half arch of teeth treated with a traditional application protocol (group A: 3 × 12 minutes for two sessions). The other received an abbreviated protocol (group B: 1 × 36 minutes over two sessions). Two sessions were appointed with a two-day inter val between them. The tooth color was registered at each session, as well as one week and one month after completing the treatment via a spectrophotometer. This measured L∗, a∗, and b∗. This was also evaluated subjectively using the VITA classical A1-D4 guide and VITA Bleachedguide 3D-MASTER. Tooth sensitivity was registered according to the visual analogue scale (VAS) scale. Tooth color variation and sensitivity were compared between groups. Results: Both treatments changed tooth color vs baseline. The DE∗ = 5.71 ± 2.62 in group A, and DE∗ = 4.93 ± 2.09 in group B one month after completing the bleaching (p=0.20). No statistical differences were seen via subjective evaluations. There were no differences in tooth sensitivity between the groups. The absolute risk of sensitivity reported for both groups was 6.25% (p=0.298). The intensity by VAS was mild (p=1.00). Conclusions: We used hydrogen peroxide (6%) that was light activated with a hybrid LED/laser and two different protocols (one 36-minute application vs three 12-minute applications each for two sessions). These approaches were equally effective. There were no differences in absolute risk of sensitivity; both groups reported mild sensitivity. © 2017 Operative Dentistry.
dc.language.isoen
dc.publisherIndiana University School of Dentistry
dc.titleComparison of effectiveness and sensitivity using two in-office bleaching protocols for a 6% hydrogen peroxide gel in a randomized clinical trial
dc.typeArticle


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