Multiple-peak and single-peak dental curing lights comparison on the wear resistance of bulk-fill composites

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dc.creatorBeatriz Ometto Sahadi
dc.creatorRichard Bengt Price
dc.creatorCarolina Bosso André
dc.creatorMaicon Sebold
dc.creatorGabriel Nima Bermejo
dc.creatorRegina Guenka Palma-Dibb
dc.creatorJuliana Jendiroba Faraoni
dc.creatorCarlos José Soares
dc.creatorMarcelo Giannini
dc.date.accessioned2022-08-29T19:08:30Z
dc.date.accessioned2025-09-08T23:06:45Z
dc.date.available2022-08-29T19:08:30Z
dc.date.issued2018-12-17
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPESP - Fundação de Amparo à Pesquisa do Estado de São Paulo
dc.format.mimetypepdf
dc.identifier.doi10.1590/1807-3107bor-2018.vol32.0122
dc.identifier.issn18068324
dc.identifier.urihttps://hdl.handle.net/1843/44681
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofBrazilian Oral Research
dc.rightsAcesso Aberto
dc.subjectComposite resins
dc.subjectToothbrushing
dc.subjectLight-curing of dental adhesives
dc.subject.otherComposite resins
dc.subject.otherToothbrushing
dc.subject.otherPolymerization
dc.titleMultiple-peak and single-peak dental curing lights comparison on the wear resistance of bulk-fill composites
dc.typeArtigo de periódico
local.citation.volume32
local.description.resumoThe effects of tooth brushing could affect the long-term esthetic outcome of composite restorations. This study evaluated the effect of two different emission spectrum light-curing units on the surface roughness, roughness profile, topography and microhardness of bulk-fill composites after in vitro toothbrushing. Valo (multiple-peak) and Demi Ultra (single-peak) curing lights were each used for 10s to polymerize three bulk-fill resin composites: Filtek Bulk Fill Posterior Restorative (FBF), Tetric EvoCeram Bulk Fill (TET) and Surefil SDR Flow (SDR). After 30,000 reciprocal strokes in a toothbrushing machine, the roughness profile, surface roughness, surface morphology, and microhardness were examined. Representative SEM images were also obtained. When light-cured with the Demi Ultra, SDR showed the most loss in volume compared to the other composites and higher volume loss compared to when was light-cured with Valo. The highest surface roughness and roughness profile values were found in SDR after toothbrushing, for both light-curing units tested. FBF always had the greatest microhardness values. Light-curing TET with Valo resulted in higher microhardness compared to when using the Demi Ultra. Confocal and SEM images show that toothbrushing resulted in smoother surfaces for FBF and TET. All composites exhibited surface volume loss after toothbrushing. The loss in volume of SDR depended on the light-curing unit used. Toothbrushing can alter the surface roughness and superficial aspect of some bulk-fill composites. The choice of light-curing unit did not affect the roughness profile, but, depending on the composite, it affected the microhardness
local.publisher.countryBrasil
local.publisher.departmentFAO - DEPARTAMENTO DE ODONTOLOGIA RESTAURADORA
local.publisher.initialsUFMG
local.url.externahttps://www.scielo.br/j/bor/a/mLVMxm5WJNkX7cm6m5SQMhv/?lang=en

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