Examination of dental hard tissues after short pulse Nd:YAG laser irradiation

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dc.contributor.authorANTUNES, A.pt_BR
dc.contributor.authorVIANNA, S.S.pt_BR
dc.contributor.authorGOMES, A.S.L.pt_BR
dc.contributor.authorROSSI, W. dept_BR
dc.contributor.authorZEZELL, D.M.pt_BR
dc.coverageInternacionalpt_BR
dc.creator.eventoINTERNATIONAL CONGRESS ON LASERS IN DENTISTRY, 8th; ANNUAL MEETING OF THE JAPANESE SOCIETY FOR LASER DENTISTRY, 14thpt_BR
dc.date.accessioned2021-11-17T18:27:37Z
dc.date.available2021-11-17T18:27:37Z
dc.date.eventoJuly 31 - August 2, 2002pt_BR
dc.description.abstractIn the course of high intensity laser irradiation, expressive chemical and physical alteration may be induced in the irradiated dental tissues. We used short pulse Nd:YAG laser, with which damage in the tissue is reduced and thermal load can be better controlled. The use of nano and picosecond pulselengh also assures better accuracy in affected zone as well a smaller deepness. In one of the experiments, specimens were irradiated with different energy densities in a unique track of the laser beam on the enamel surface. Laser parameters used were: pulse width 6ns, energy densities from 10J/cm2 to 40J/cm2 and focused beam diameter of 0.1cm. In this case, the area of affected zone was 3 times higher than expected. In other experiment, bursts of shorter laser pulse width were used. In this case the laser emissin was formed by bursts composed of a train of 10 pulses with 100 ns of pulse width each. Energy densities from 10J/cm2 to 22.5J/cm2 and a focused beam diameter of 0.06cm were used. Heat affected zone was determined by Scanning Electron Microscopy, which showed a direct relationship between energy employed and morphological changes and as a result of dental tissue damage dimension.pt_BR
dc.format.extent77-77pt_BR
dc.identifier.citationANTUNES, A.; VIANNA, S.S.; GOMES, A.S.L.; ROSSI, W. de; ZEZELL, D.M. Examination of dental hard tissues after short pulse Nd:YAG laser irradiation: morphological and chemical analysis. In: INTERNATIONAL CONGRESS ON LASERS IN DENTISTRY, 8th; ANNUAL MEETING OF THE JAPANESE SOCIETY FOR LASER DENTISTRY, 14th, July 31 - August 2, 2002, Yokohama, Japan. <b>Abstract...</b> Aachen, Alemanha: International Society for Laser in Dentistry, 2002. p. 77-77. Disponível em: http://repositorio.ipen.br/handle/123456789/32350.
dc.identifier.orcid0000-0001-7404-9606pt_BR
dc.identifier.orcid0000-0003-1371-7521pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-7404-9606
dc.identifier.orcidhttps://orcid.org/0000-0003-1371-7521
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/32350
dc.localAachen, Alemanhapt_BR
dc.local.eventoYokohama, Japanpt_BR
dc.publisherInternational Society for Laser in Dentistrypt_BR
dc.rightsopenAccesspt_BR
dc.subjectdentistry
dc.subjectneodymium lasers
dc.subjectlaser radiation
dc.subjectteeth
dc.subjectenamels
dc.titleExamination of dental hard tissues after short pulse Nd:YAG laser irradiationpt_BR
dc.typeResumo de eventos científicospt_BR
dspace.entity.typePublication
ipen.autorDENISE MARIA ZEZELL
ipen.autorWAGNER DE ROSSI
ipen.autorANDREA ANTUNES PEREIRA
ipen.codigoautor693
ipen.codigoautor73
ipen.codigoautor2744
ipen.contributor.ipenauthorDENISE MARIA ZEZELL
ipen.contributor.ipenauthorWAGNER DE ROSSI
ipen.contributor.ipenauthorANDREA ANTUNES PEREIRA
ipen.date.recebimento21-11
ipen.event.datapadronizada2002pt_BR
ipen.identifier.ipendoc28118pt_BR
ipen.notas.internasAbstractpt_BR
ipen.subtitulomorphological and chemical analysispt_BR
ipen.type.genreResumo
relation.isAuthorOfPublicationa565f8ad-3432-4891-98c0-a587f497db21
relation.isAuthorOfPublication4e856bd3-cb24-4e4f-902b-58fd9ddf811f
relation.isAuthorOfPublication5740b800-d905-4fdb-afed-663c832ab41e
relation.isAuthorOfPublication.latestForDiscovery5740b800-d905-4fdb-afed-663c832ab41e
sigepi.autor.atividadeZEZELL, D.M.:693:920:Npt_BR
sigepi.autor.atividadeROSSI, W. de:73:920:Npt_BR
sigepi.autor.atividadeANTUNES, A.:2744:-1:Spt_BR
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