Comparative assessment of different recycling methods of orthodontic brackets for clinical use

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorOliveira Correia, Ayla M. de-
Autor(es): dc.creatorMatos, Felipe de Souza-
Autor(es): dc.creatorJoias, Renata Pilli-
Autor(es): dc.creatorRode, Sigmar de Mello-
Autor(es): dc.creatorCesar, Paulo F.-
Autor(es): dc.creatorParanhos, Luiz R.-
Data de aceite: dc.date.accessioned2021-03-10T23:55:04Z-
Data de disponibilização: dc.date.available2021-03-10T23:55:04Z-
Data de envio: dc.date.issued2018-11-26-
Data de envio: dc.date.issued2018-11-26-
Data de envio: dc.date.issued2017-06-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.23736/S0026-4970.17.03984-X-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/163037-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/163037-
Descrição: dc.descriptionFAPITEC/SE (Foundation for Research and Technological Innovation Support of the State of Sergipe)-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionBACKGROUND: This study aimed to assess bond strength of the resin/bracket interface, under in-vitro shear stress, of metal brackets recycled by different clinical protocols. METHODS: Sixty stainless steel orthodontic brackets were bonded on acrylic resin. The Transbond XT (TM) resin was applied at the base of the bracket aided by a matrix, obtaining 1 mm of thickness, and photoactivated with a LED device (40 s; 500 mW/cm(2)). Samples were randomly divided into four groups (N=15) according to the reconditioning/recycling protocol: aluminum oxide (AO) 90 mu m; hydrofluoric acid 60 s (HA60); hydrofluoric acid 120 s (HA120); hydrofluoric acid 60 s + silane (HA60S). After recycling, the resin was applied at the base of the bracket for shear testing in a universal testing machine (0.5 mm/min). After reconditioning/recycling, the surfaces were analyzed by Scanning Electron Microscopy. Data obtained after the shear test were subjected to ANOVA and Tukey's test (P<0.05). RESULTS: The AO group presented higher values of shear bond strength compared to the other reconditioning/recycling protocols (P<0.05). The HA120 and HA60S groups presented statistically similar results, but HA120 presented strength below the recommended limit. CONCLUSIONS: The recycling technique by aluminum oxide sandblasting was more effective for reconditioning orthodontic brackets when compared to the other protocols. The reconditioning technique with 10% hydrofluoric acid followed by the application of silane bonding agent may be used as an alternative protocol.-
Formato: dc.format107-114-
Idioma: dc.languageen-
Publicador: dc.publisherEdizioni Minerva Medica-
Relação: dc.relationMinerva Stomatologica-
Direitos: dc.rightsclosedAccess-
Palavras-chave: dc.subjectOrthodontic brackets-
Palavras-chave: dc.subjectDental materials-
Palavras-chave: dc.subjectAluminum oxide-
Palavras-chave: dc.subjectSilanes-
Título: dc.titleComparative assessment of different recycling methods of orthodontic brackets for clinical use-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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