Influence of viscosity and chemical composition of composite resins in non-carious cervical restorations: 12-month randomized clinical trial

• Autor(a) principal: Matos, Thalita
• Data de Publicação: 2021
• Outros Autores: Josnei de Souza, Julian, Luján Méndez Bauer, María, Núñez Aldaz, Alejandra, Jardim Frossard Duarte, Luiza, Barceleiro, Marcos, Reis, Alessandra, Dourado Loguercio, Alessandro
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Brazilian Dental Science
• Texto Completo: https://ojs.ict.unesp.br/index.php/cob/article/view/2792

Objective: The objective of this double-blind, randomized controlled clinical trial was to evaluate the clinicalperformance of two methacrylate-based flowable composite and ormocer-based flowable composite in non-cariouscervical lesions (NCCLs) of adult patients. Material and Methods: 183 restorations were performed on NCCLsusing the Futurabond U adhesive system, applied in the selective enamel etching mode in all cavities. After theadhesive application, the cavities were restored with one out of the three evaluated flowable composites (n = 61per group): ormocer-based flowable composite (Admira Fusion Flow, ORM), low viscosity methacrylate-basedcomposite (GrandioSO Flow, LV) and high viscosity methacrylate-based composite (GrandioSO Heavy Flow, HV).After 12 months of clinical performance, these restorations were evaluated according to FDI and USPHS criteriain the following items: retention/fracture, marginal adaptation, marginal staining, postoperative sensitivity andcaries recurrence. Results: eight restorations were lost/fractured after 12 months of clinical evaluation (1 inthe ORM and 7 in the HV group). The retention rates for 12- months (95% confidence interval) were 98.4%(91.3%-99.7%) for the ORM group, 100% (94.5%-100%) for the LV group and 88.5% (78.1%-94.3%) for theHV group, with no statistical difference identified between any pair of groups (p > 0.05). Five restorationspresented small marginal adaptation defects at the 12-months evaluation recall, and all of them were consideredclinically acceptable. Conclusion: The clinical performance of the universal adhesive associated to ormocer-basedor methacrylate-based flowable composite were found to be promising after 12-month of clinical evaluation.KEYWORDSDental bonding; Dental restoration; Clinical trial.