Repair bond strength of a CAD/CAM nanoceramic resin and direct composite resin: Effect of aging and surface conditioning methods

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorFederal University of Rio Grande do Norte (UFRN)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorPrivate Practice-
Autor(es): dc.contributorClinic for Fixed and Removable Prosthodontics and Dental Materials Science-
Autor(es): dc.creatorMoura, Dayanne Monielle Duarte-
Autor(es): dc.creatorDal Piva, Amanda Maria de Oliveira [UNESP]-
Autor(es): dc.creatordo Nascimento Januário, Ana Beatriz-
Autor(es): dc.creatorVerissímo, Aretha Heitor-
Autor(es): dc.creatorBottino, Marco Antonio [UNESP]-
Autor(es): dc.creatorÖzcan, Mutlu-
Autor(es): dc.creatorSouza, Rodrigo Othávio Assunção-
Data de aceite: dc.date.accessioned2022-02-22T00:34:31Z-
Data de disponibilização: dc.date.available2022-02-22T00:34:31Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-05-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3290/j.jad.a44551-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/201787-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/201787-
Descrição: dc.descriptionPurpose: To evaluate the effect of surface conditioning methods and aging on the repair bond strength between resin composite and nanoceramic CAD/CAM resin. Materials and Methods: Twenty-four blocks of nanoceramic CAD/CAM resin (NCR) (Lava Ultimate, 3M Oral Care) (10 x 5 x 2 mm3) and resin composite (Filtek Z350, 3M Oral Care) (RC) were made, embedded in acrylic resin, polished (#600, #800, #1200) and randomly divided into 8 groups (n = 12 each) according to surface conditioning methods (air abrasion with 30-μm CoJet [CJ] or air abrasion with 50-μm Al2O3 [AB]) and aging prior to repair (without aging, 24 h in water at 37°C; with aging 6 months in water at 37°C). The blocks were air abraded (20 s, 2.5 bar, 10 mm) using a standardized device. A layer of adhesive resin (Scotchbond Universal) was applied (20 s) and photopolymerized for 20 s. RC cylinders (O = 2 mm; h = 2 mm) were then bonded to the NCR substrates using a Teflon matrix and photopolymerized for 40 s. All specimens were thermocycled (10,000 cycles, 5°C-55°C) and submitted to the shear bond test (50 kgf, 0.5 mm/min) to measure repair strength. Data (MPa) were analyzed using 3-way ANOVA and Tukey's test (α = 0.05). Failure analysis was performed using stereomicroscopy (20X). Results: ANOVA revealed a significant effect of only the material factor (p = 0.00). The group NCR6mCJ presented bond strengths (29.37 ± 5.41) which were significantly higher than those of the NCR24hCJ (20.88 ± 5.74) and RC groups (p < 0.05). The group RC24hCJ (19.71 ± 4.21) presented the lowest shear bond strength (p < 0.05). Failure analysis revealed predominantly type B mixed failures (adhesive+cohesive in the substrate material) except for the groups NCR24hCJ and NCR6mAB, where mainly type C failure (adhesive+cohesive at the RC) was observed. Conclusion: Air abrasion with Al2O3 particles or silicatization with CoJet followed by adhesive resin application are effective surface conditioning methods for the repair of nanoceramic CAD/CAM resin with resin composite.-
Descrição: dc.descriptionFederal University of Rio Grande do Norte (UFRN) Department of Dentistry-
Descrição: dc.descriptionSão Paulo State University (UNESP)-
Descrição: dc.descriptionPrivate Practice-
Descrição: dc.descriptionSão Paulo State University (UNESP) Institute of Science and Technology, São José dos Campos-
Descrição: dc.descriptionUniversity of Zurich Center for Dental and Oral Medicine Dental Materials Unit Clinic for Fixed and Removable Prosthodontics and Dental Materials Science-
Descrição: dc.descriptionSão Paulo State University (UNESP)-
Descrição: dc.descriptionSão Paulo State University (UNESP) Institute of Science and Technology, São José dos Campos-
Formato: dc.format275-283-
Idioma: dc.languageen-
Relação: dc.relationJournal of Adhesive Dentistry-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAdhesion-
Palavras-chave: dc.subjectNanoceramic resin-
Palavras-chave: dc.subjectRepair-
Palavras-chave: dc.subjectResin composite-
Palavras-chave: dc.subjectShear bond strength-
Palavras-chave: dc.subjectSurface conditioning-
Título: dc.titleRepair bond strength of a CAD/CAM nanoceramic resin and direct composite resin: Effect of aging and surface conditioning methods-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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