Bond strength and marginal microleakage restorations cured with LED and halogen dental curing light associated to three modes of application of a universal adhesive system: in vitro study

Autor: Ricardi, Felipe de Brum
Přispěvatelé: Busato, Mauro Carlos Agner, Busato, Priscilla do Monte Ribeiro, Mazur, Rui Fernando
Jazyk: portugalština
Rok vydání: 2017
Předmět:
Zdroj: Biblioteca Digital de Teses e Dissertações do UNIOESTE
Universidade Estadual do Oeste do Paraná (UNIOESTE)
instacron:UNIOESTE
Popis: Submitted by Edineia Teixeira (edineia.teixeira@unioeste.br) on 2018-04-13T17:05:10Z No. of bitstreams: 2 Felipe_Ricardi2017.pdf: 1032662 bytes, checksum: 6aaca7ee5122dd1349c2efde06964976 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Made available in DSpace on 2018-04-13T17:05:10Z (GMT). No. of bitstreams: 2 Felipe_Ricardi2017.pdf: 1032662 bytes, checksum: 6aaca7ee5122dd1349c2efde06964976 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2017-03-02 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES The objective was to evaluate the bond strength and marginal microleakage in composite resin restorations, using Universal Single Bond adhesive system associated with Ultralux (halogen) and Bluephase (LED) photoactivators. For bond strength, eighty healthy human third molars were divided: Halogen (n = 40); LED (n = 40), subdivided according to the technique of application of the adhesive system: self-etch – enamel; etch-and-rinse – enamel, self-etch – dentin; etch-and-rinse – dentin. The teeth were submitted to the Tensile Bond Strength test and the fracture pattern was observed under an optical microscope - 40X magnification, analyzed by the ANOVA, Tukey and Fisher tests (5%). For the marginal microleakage assay, 120 class II cavities were prepared in sixty healthy, randomly divided third human molars: Halogen (n = 30); LED (n = 30) and subdivided according to the application technique of the adhesive system: self-etch; selective-etch; etch-and-rinse. The teeth were thermocycled 2000 times (± 5 / 55ºC), stained in 5% basic fuchsin and sectioned for qualitative and quantitative evaluations, analyzed by the Kruskall-Wallis and Dunn tests (5%). For bond strength in enamel and dentin, the adhesive application with prior acid etching was better than the etch-and-rinse (p
Databáze: OpenAIRE
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