Ultrasonic activation of internal bleaching agents

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dc.contributor.authorCardoso, M. [UNESP]
dc.contributor.authorMartinelli, C. S M [UNESP]
dc.contributor.authorCarvalho, C. A T [UNESP]
dc.contributor.authorBorges, A. B. [UNESP]
dc.contributor.authorTorres, C. R G [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:27:30Z
dc.date.available2014-05-27T11:27:30Z
dc.date.issued2013-01-01
dc.description.abstractAim: To evaluate the effectiveness of ultrasonic activation of bleaching agents during ex vivo internal bleaching. Methodology: Fifty canine human teeth were artificially stained, root filled and divided into five groups (n = 10) that received SP - sodium perborate plus deionized water (control group), CP - 37% carbamide peroxide gel, CPUS - 37% carbamide peroxide gel plus ultrasonic application, HP - 35% hydrogen peroxide gel or HPUS - 35% hydrogen peroxide gel plus ultrasonic application. In groups CP and HP, the bleaching agent was left inside the pulp chamber for three applications of 10 min. In groups CPUS and HPUS, the same process was performed, but ultrasonic vibration was applied to the bleaching agent by an alloy tip for 30 s, with 30 s intervals. Two sessions were performed. The colour was measured initially and after each session by an intraoral dental spectrophotometer. The variation (Δ) of the colour parameters based on the CIELab system L*, a* and b*, and the colour alteration ΔE* were calculated after first and second section. Data were analysed by one-way anova and Tukey's test. Results: There was no significant difference amongst groups for ΔL*, Δa* and ΔE*, but there was a significant difference for Δb* in the first and second sessions (P = 0.0006 and 0.0016, respectively). After the first session, Δb* was significantly greater for groups HP and HPUS, without a significant difference between them. For the second session, group HPUS had the greatest Δb* values, but they were similar to groups HP and SP; group CP had the lowest values, which were similar to groups CPUS and SP. Conclusion: Ultrasonic activation of bleaching agents during ex vivo internal bleaching was no more effective than conventional internal bleaching procedures, without activation. © 2012 International Endodontic Journal.en
dc.description.affiliationDental Materials and Prosthodontics Department São José dos Campos Dental School Unesp Univ Estadual Paulista, São José dos Campos, SP
dc.description.affiliationRestorative Dentistry Department São José dos Campos Dental School Unesp, Univ Estadual Paulista, São José dos Campos, SP
dc.description.affiliationUnespDental Materials and Prosthodontics Department São José dos Campos Dental School Unesp Univ Estadual Paulista, São José dos Campos, SP
dc.description.affiliationUnespRestorative Dentistry Department São José dos Campos Dental School Unesp, Univ Estadual Paulista, São José dos Campos, SP
dc.format.extent40-46
dc.identifierhttp://dx.doi.org/10.1111/j.1365-2591.2012.02090.x
dc.identifier.citationInternational Endodontic Journal, v. 46, n. 1, p. 40-46, 2013.
dc.identifier.doi10.1111/j.1365-2591.2012.02090.x
dc.identifier.issn0143-2885
dc.identifier.issn1365-2591
dc.identifier.lattes6960470053037905
dc.identifier.lattes3135367849609938
dc.identifier.scopus2-s2.0-84870853822
dc.identifier.urihttp://hdl.handle.net/11449/74220
dc.identifier.wosWOS:000312297700005
dc.language.isoeng
dc.relation.ispartofInternational Endodontic Journal
dc.relation.ispartofjcr3.015
dc.relation.ispartofsjr1,791
dc.relation.ispartofsjr1,791
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectCarbamide peroxide
dc.subjectHydrogen peroxide
dc.subjectInternal bleaching
dc.subjectSodium perborate
dc.subjectSpectrophotometer
dc.subjectUltrasonic activation
dc.titleUltrasonic activation of internal bleaching agentsen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
unesp.author.lattes6960470053037905[4]
unesp.author.lattes3135367849609938[5]
unesp.author.orcid0000-0001-7686-089X[4]
unesp.author.orcid0000-0002-9485-5514[5]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Ciência e Tecnologia, São José dos Campospt

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Artigos - Materiais Odontológicos e Prótese - ICT
Artigos - Odontologia Restauradora - ICT