Effects of LED-laser hybrid light on bleaching effectiveness and tooth sensitivity: A randomized clinical study

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dc.contributor.authorBortolatto, Janaina F [UNESP]
dc.contributor.authorPretel, Hermes
dc.contributor.authorNeto, Carolina S [UNESP]
dc.contributor.authorAndrade, Marcelo F [UNESP]
dc.contributor.authorMoncada, Gustavo
dc.contributor.authorOliveira Jr., Osmir B [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionNUPEN - Research and Education Center for Phototherapy in Health Sciences
dc.contributor.institutionSchool of Dentistry of Santiago
dc.date.accessioned2014-05-27T11:30:06Z
dc.date.available2014-05-27T11:30:06Z
dc.date.issued2013-08-01
dc.description.abstractThe study evaluated the effectiveness and the sensitivity of in-office tooth bleaching with the use of a hybrid photo-activation system composed by LEDs and lasers. 40 patients, both genders, aged 18 through 25 years, were randomly distributed into two treatment groups: group I, 35% hydrogen peroxide, with a total bleaching time of 135 min divided into three sessions, and group II, 35% hydrogen peroxide and photo-thermal catalysis by an LED-laser system (300 mW cm-2), for a total bleaching time of 72 min divided into three sessions. The treatment efficiency was measured by reflectance spectroscopy and sensitivity by a visual analog scale (VAS). The final luminosity value (ΔL), color variation (ΔE) and sensitivity (S) resulting from the treatments were analyzed by the generalized estimating equations method (GEEs), and Bonferroni post hoc multiple comparisons at 5% significance. The two groups presented similar colors (ΔE) and luminosities (ΔL) after treatment. Group I presented a greater sensitivity index (37.6 ± 5.9%) compared to group II (11.1 ± 3.3%), statistically significant at p < 0.05. The use of LED-laser hybrid light, as a catalyst of the bleaching agents, showed a significant decrease of provoked tooth sensitivity and a treatment time reduced by 53%, with the same aesthetic results as without a light source. © 2013 Astro Ltd.en
dc.description.affiliationUniversidade Estadual Paulista - UNESP School of Dentistry of Araraquara
dc.description.affiliationNUPEN - Research and Education Center for Phototherapy in Health Sciences, São Carlos, São Paulo
dc.description.affiliationUniversidad de Chile School of Dentistry of Santiago
dc.description.affiliationUnespUniversidade Estadual Paulista - UNESP School of Dentistry of Araraquara
dc.identifierhttp://dx.doi.org/10.1088/1612-2011/10/8/085601
dc.identifier.citationLaser Physics Letters, v. 10, n. 8, 2013.
dc.identifier.doi10.1088/1612-2011/10/8/085601
dc.identifier.issn1612-2011
dc.identifier.issn1612-202X
dc.identifier.scopus2-s2.0-84881283153
dc.identifier.urihttp://hdl.handle.net/11449/76148
dc.identifier.wosWOS:000327136900017
dc.language.isoeng
dc.relation.ispartofLaser Physics Letters
dc.relation.ispartofjcr2.240
dc.relation.ispartofsjr0,818
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.titleEffects of LED-laser hybrid light on bleaching effectiveness and tooth sensitivity: A randomized clinical studyen
dc.typeArtigo
dcterms.licensehttp://iopscience.iop.org/page/copyright
unesp.author.orcid0000-0002-8077-1133[2]
unesp.author.orcid0000-0002-2153-9887[6]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araraquarapt

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