LED light attenuation through human dentin: A first step toward pulp photobiomodulation after cavity preparation

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dc.contributor.authorTurrioni, Ana Paula S. [UNESP]
dc.contributor.authorAlonso, Juliana R. L. [UNESP]
dc.contributor.authorBasso, Fernanda G. [UNESP]
dc.contributor.authorMoriyama, Lilian T.
dc.contributor.authorHebling, Josimeri [UNESP]
dc.contributor.authorBagnato, Vanderlei S.
dc.contributor.authorSouza Costa, Carlos A. de [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2014-12-03T13:07:05Z
dc.date.available2014-12-03T13:07:05Z
dc.date.issued2013-12-01
dc.description.abstractPurpose: To evaluate the transdentinal light attenuation of LED at three wavelengths through different dentin thicknesses, simulating cavity preparations of different depths. Methods: Forty-two dentin discs of three thicknesses (0.2, 0.5 and 1 mm; n = 14) were prepared from the coronal dentin of extracted sound human molars. The discs were illuminated with a LED light at three wavelengths (450 +/- 10 nm, 630 +/- 10 nm and 850 +/- 10 nm) to determine light attenuation. Light transmittance was also measured by spectrophotometry. Results: In terms of minimum (0.2 mm) and maximum (1.0 mm) dentin thicknesses, the percentage of light attenuation varied from 49.3% to 69.9% for blue light, 42.9% to 58.5% for red light and 39.3% to 46.8% for infrared. For transmittance values, an increase was observed for all thicknesses according to greater wavelengths, and the largest variation occurred for the 0.2 mm thickness. All three wavelengths were able to pass through the dentin barrier at different thicknesses. Furthermore, the LED power loss and transmittance showed wide variations, depending on dentin thickness and wavelength.en
dc.description.affiliationUniv Estadual Paulista, Araraquara Sch Dent, UNESP, BR-14801903 Araraquara, SP, Brazil
dc.description.affiliationUniv Sao Paulo, Sao Carlos, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Araraquara Sch Dent, UNESP, BR-14801903 Araraquara, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 11/13895-0
dc.description.sponsorshipIdCNPq: 301291/2010-1
dc.format.extent319-323
dc.identifierhttp://www.amjdent.com/Archive/Abstracts/2013/December%202013%20Abstracts.html#Turrioni
dc.identifier.citationAmerican Journal of Dentistry. Weston: Mosher & Linder, Inc, v. 26, n. 6, p. 319-323, 2013.
dc.identifier.issn0894-8275
dc.identifier.lattes4517484241515548
dc.identifier.urihttp://hdl.handle.net/11449/111236
dc.identifier.wosWOS:000328923300004
dc.language.isoeng
dc.publisherMosher & Linder, Inc
dc.relation.ispartofAmerican Journal of Dentistry
dc.relation.ispartofjcr0.760
dc.relation.ispartofsjr0,509
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleLED light attenuation through human dentin: A first step toward pulp photobiomodulation after cavity preparationen
dc.typeArtigo
dcterms.rightsHolderMosher & Linder, Inc
unesp.author.lattes4517484241515548[7]
unesp.author.orcid0000-0002-7455-6867[7]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araraquarapt

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