Spectroscopic study of ejected dental tissue after Er : YAG laser ablation

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dc.contributor.authorCourrol, L. C.
dc.contributor.authorZezell, D. M.
dc.contributor.authorSamad, R. E.
dc.contributor.authorGomes, L.
dc.contributor.institutionCNEN
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:20:36Z
dc.date.available2014-05-20T15:20:36Z
dc.date.issued2003-05-01
dc.description.abstractBy means of IR spectroscopy, we determined the teeth ablation mechanism by an Er:YAG laser oscillating at 2.94 mum. Ejected dental material, ablated by the laser from human teeth, was deposited on an IR window and the absorption spectra were measured in the range 2500-20,000 nm. Sound teeth were used, and the corresponding film spectra were compared to spectra obtained by traditional methods. The films spectra obtained do not differ appreciably from those obtained by the traditional method for sound teeth, indicating that the material ejected by an Er:YAG represents the tooth condition.The obtained results confirm that a spectroscopic analysis of a tooth treated with an Er:YAG laser can be done measuring the absorbance of a film composed of ejected material without the need to slice it. In addition, we could determine that the laser absorption occurs mainly by the interstitial water, and the temperature elevation of the ejected material does not exceed 60degreesC. (C) 2002 Elsevier B.V. B.V. All rights reserved.en
dc.description.affiliationCNEN, IPEN, Ctr Lasers & Aplicaqcoes, BR-05508900 São Paulo, Brazil
dc.description.affiliationUNESP, FATEC, Lab Vidros & Datacao, São Paulo, Brazil
dc.description.affiliationUnespUNESP, FATEC, Lab Vidros & Datacao, São Paulo, Brazil
dc.format.extent96-100
dc.identifierhttp://dx.doi.org/10.1016/S0022-2313(02)00473-8
dc.identifier.citationJournal of Luminescence. Amsterdam: Elsevier B.V., v. 102, p. 96-100, 2003.
dc.identifier.doi10.1016/S0022-2313(02)00473-8
dc.identifier.issn0022-2313
dc.identifier.urihttp://hdl.handle.net/11449/31870
dc.identifier.wosWOS:000182376000019
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofJournal of Luminescence
dc.relation.ispartofjcr2.732
dc.relation.ispartofsjr0,694
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectEr : YAG laserpt
dc.subjectablationpt
dc.subjectspectroscopypt
dc.subjecttemperaturept
dc.subjectproteinpt
dc.subjectdemineralizationpt
dc.titleSpectroscopic study of ejected dental tissue after Er : YAG laser ablationen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.

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