Occurrence of sensitivity during at-home and in-office tooth bleaching therapies with or without use of light sources
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The aim of this study was to evaluate the effect of tooth bleaching with 10% carbamide peroxide (CP) or 35% hydrogen peroxide (HP), with or without quartz-tungsten-halogen light or hybrid source LED/infrared laser exposition on the occurrence duration, intensity and location of tooth sensitivity Forty patients were selected and randomly divided into four groups: GI--home bleaching with CP for 4 hours a day, over the course of 3 weeks; GII--three sessions of HP with three 10-minute applications at each session and no light source; GIII--the same procedure as GII with quartz-tungsten-halogen light irradiation; GIV--the same procedure as GII with LED/laser light irradiation. The evaluation included an appointment with each patient before and after each HP bleaching session or each weekly CP bleaching and 7, 30 and 180 days after the end of treatment. The Kruskal-Wallis test revealed that the duration and intensity of post-treatment sensitivity were significantly higher for HP than for CP (p< 0.05), and symptoms were located predominantly in anterior teeth. All bleaching methods generated sensitivity, which was more frequent in anterior teeth. However, treatment with CP generated lower sensitivity than treatment with HP independently of the light sources.
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drug derivative , hydrogen peroxide , peroxide , urea , urea peroxide , adolescent , adult , ambulatory care , clinical trial , controlled clinical trial , controlled study , dental procedure , dentin sensitivity , home care , human , laser , light , methodology , randomized controlled trial , Adolescent , Adult , Dentin Sensitivity , Home Care Services , Humans , Hydrogen Peroxide , Lasers , Light , Office Visits , Peroxides , Tooth Bleaching , Urea , Young Adult
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Inglês
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Acta odontológica latinoamericana : AOL, v. 25, n. 1, p. 3-8, 2012.
