Comparative analysis of root surface smear layer removal by different etching modalities or erbium:yttrium-aluminum-garnet laser irradiation. A scanning electron microscopy study

dc.contributor.authorTheodoro, Letícia Helena [UNESP]
dc.contributor.authorZezell, Denise Maria
dc.contributor.authorGarcia, Valdir Gouveia [UNESP]
dc.contributor.authorHaypek, Patricia
dc.contributor.authorNagata, Maria José Hitomi [UNESP]
dc.contributor.authorAlmeida, Juliano Milanezi de [UNESP]
dc.contributor.authorEduardo, Carlos de Paula
dc.contributor.institutionInstituto de Pesquisas Energéticas e Nucleares (IPEN)
dc.contributor.institutionUniv Ctr Educ Fdn Barretos UNIFEB
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2013-09-30T18:29:44Z
dc.date.accessioned2014-05-20T13:43:25Z
dc.date.available2013-09-30T18:29:44Z
dc.date.available2014-05-20T13:43:25Z
dc.date.issued2010-07-01
dc.description.abstractThe purpose of this study was to evaluate the effect of erbium:yttrium-aluminum-garnet (Er:YAG) laser (2.94 mu m) irradiation on the removal of root surface smear layer of extracted human teeth and to compare its efficacy with that of citric acid, ethylenediamine tetra-acetic acid (EDTA), or a gel containing a mixture of tetracycline hydrochloride (HCl) and citric acid, using scanning electron microscopy (SEM). Thirty human dentin specimens were randomly divided into six groups: G1 (control group), irrigated with 10 ml of physiologic saline solution; G2, conditioned with 24% citric acid gel; G3, conditioned with 24% EDTA gel; G4, conditioned with a 50% citric acid and tetracycline gel; G5, irradiated with Er:YAG laser (47 mJ/10 Hz/5.8 J/cm(2)/pulse); G6, irradiated with Er:YAG laser (83 mJ/10 Hz/10.3 J/cm(2)/pulse). Electron micrographs were obtained and analyzed according to a rating system. Statistical analysis was conducted with Kruskal-Wallis and Mann-Whitney tests (P < 0.05). G1 was statistically different from all the other groups; no statistically significant differences were observed between the Er:YAG laser groups and those undergoing the other treatment modalities. When the two Er:YAG laser groups were compared, the fluency of G6 was statistically more effective in smear layer removal than the one used in G5 (Mann-Whitney test, P < 0.01). Root surfaces irradiated by Er:YAG laser had more irregular contours than those treated by chemical agents. It can be concluded that all treatment modalities were effective in smear layer removal. The results of our study suggest that the Er:YAG laser can be safely used to condition diseased root surfaces effectively. Furthermore, the effect of Er:YAG laser irradiation on root surfaces should be evaluated in vivo so that its potential to enhance the healing of periodontal tissues can be assessed.en
dc.description.affiliationIPEN CNEN SP, Ctr Lasers & Applicat, Lab Biophoton, BR-05508000 São Paulo, Brazil
dc.description.affiliationUniv Ctr Educ Fdn Barretos UNIFEB, Barretos, SP, Brazil
dc.description.affiliationSão Paulo State Univ UNESP, Aracatuba Dent Sch, Div Periodont, Aracatuba, SP, Brazil
dc.description.affiliationUniv São Paulo USP, Dent Sch São Paulo, Div Restorat Dent, São Paulo, Brazil
dc.description.affiliationUnespSão Paulo State Univ UNESP, Aracatuba Dent Sch, Div Periodont, Aracatuba, SP, Brazil
dc.format.extent485-491
dc.identifierhttp://dx.doi.org/10.1007/s10103-009-0665-4
dc.identifier.citationLasers In Medical Science. London: Springer London Ltd, v. 25, n. 4, p. 485-491, 2010.
dc.identifier.doi10.1007/s10103-009-0665-4
dc.identifier.issn0268-8921
dc.identifier.lattes4774447118127346
dc.identifier.lattes4068921369233125
dc.identifier.lattes8399870097572073
dc.identifier.urihttp://hdl.handle.net/11449/15146
dc.identifier.wosWOS:000277343300004
dc.language.isoeng
dc.publisherSpringer London Ltd
dc.relation.ispartofLasers in Medical Science
dc.relation.ispartofjcr1.949
dc.relation.ispartofsjr0,713
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectComparison studiesen
dc.subjectLaser/therapeutic useen
dc.subjectPeriodontal therapyen
dc.subjectScalingen
dc.subjectSmear layeren
dc.titleComparative analysis of root surface smear layer removal by different etching modalities or erbium:yttrium-aluminum-garnet laser irradiation. A scanning electron microscopy studyen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer London Ltd
unesp.author.lattes4774447118127346
unesp.author.lattes4068921369233125
unesp.author.lattes8399870097572073
unesp.author.orcid0000-0001-8783-7951[7]
unesp.author.orcid0000-0002-6715-8334[3]
unesp.author.orcid0000-0001-5903-5652[5]
unesp.author.orcid0000-0002-5995-5747[6]
unesp.author.orcid0000-0001-7404-9606[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araçatubapt
unesp.departmentCirurgia e Clínica Integrada - FOApt

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