Effect of Er : YAG and diode laser irradiation on the root surface: Morphological and thermal analysis

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dc.contributor.authorTheodoro, Letícia Helena [UNESP]
dc.contributor.authorHaypek, P.
dc.contributor.authorBachmann, L.
dc.contributor.authorGarcia, V. G.
dc.contributor.authorSampaio, J.E. C.
dc.contributor.authorZezell, D. M.
dc.contributor.authorEduardo, C. D.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-02-26T17:17:25Z
dc.date.accessioned2014-05-20T13:45:09Z
dc.date.available2014-02-26T17:17:25Z
dc.date.available2014-05-20T13:45:09Z
dc.date.issued2003-06-01
dc.description.abstractBackground: the aim of the present study was to compare the effects of Er:YAG and diode laser treatments of the root surface on intrapulpal temperature after scaling and root planing with hand instruments.Methods: Fifteen extracted single-rooted teeth were scaled and root planed with hand instruments. The teeth were divided into 3 groups of 5 each and irradiated on their buccal and lingual surfaces: group A: Er:YAG laser, 2.94 mum/100 mJ/10 Hz/ 30 seconds; group B: diode laser, 810 nm/1.0 W/0.05 ms/30 seconds; group C: diode laser, 810 nm/1.4 W/0.05 ms/30 seconds. The temperature was monitored by means of a type T thermocouple (copper-constantan) positioned in the pulp chamber to assess pulpal temperature during and before irradiation. Afterwards, the specimens were longitudinally sectioned, and the buccal and lingual surfaces of each root were analyzed by scanning electron microscopy.Results: In the Er:YAG laser group, the thermal analysis revealed an average temperature of -2.2 +/- 1.5degreesC, while in the diode laser groups, temperatures were 1.6 +/- 0.8degreesC at 1.0 W and 3.3 +/- 1.0degreesC at 1.4 W. Electronic micrographs revealed that there were no significant morphological changes, such as charring, melting, or fusion, in any group, although the specimens were found to be more irregular in the Er:YAG laser group.Conclusions: the application of Er:YAG and diode lasers at the utilized parameters did not induce high pulpal temperatures. Root surface irregularities were more pronounced after irradiation with an Er:YAG laser than with a diode laser.en
dc.description.affiliationUNESP, Fac Odontol, Dept Diagnost & Cirurgia Disciplina Periodontia, BR-14801903 Araraquara, SP, Brazil
dc.description.affiliationUnespUNESP, Fac Odontol, Dept Diagnost & Cirurgia Disciplina Periodontia, BR-14801903 Araraquara, SP, Brazil
dc.format.extent838-843
dc.identifierhttp://dx.doi.org/10.1902/jop.2003.74.6.838
dc.identifier.citationJournal of Periodontology. Chicago: Amer Acad Periodontology, v. 74, n. 6, p. 838-843, 2003.
dc.identifier.doi10.1902/jop.2003.74.6.838
dc.identifier.issn0022-3492
dc.identifier.lattes4774447118127346
dc.identifier.lattes4774447118127346
dc.identifier.urihttp://hdl.handle.net/11449/15867
dc.identifier.wosWOS:000187315100009
dc.language.isoeng
dc.publisherAmer Acad Periodontology
dc.relation.ispartofJournal of Periodontology
dc.relation.ispartofjcr3.392
dc.relation.ispartofsjr1,408
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectcomparison studiespt
dc.subjectdental pulppt
dc.subjectlasers/therapeutic usept
dc.subjectperiodontal diseases/therapypt
dc.subjectplaningpt
dc.subjectscalingpt
dc.subjecttemperaturept
dc.titleEffect of Er : YAG and diode laser irradiation on the root surface: Morphological and thermal analysisen
dc.typeArtigo
dcterms.licensehttp://www.joponline.org/userimages/ContentEditor/1124388816475/Instructions_to_Authors.pdf
dcterms.rightsHolderAmer Acad Periodontology
unesp.author.lattes4774447118127346
unesp.author.lattes4774447118127346
unesp.author.orcid0000-0001-6622-251X[3]
unesp.author.orcid0000-0002-6715-8334[4]
unesp.author.orcid0000-0001-8783-7951[7]
unesp.author.orcid0000-0001-7404-9606[6]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araraquarapt

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