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

2021; UNIVERSIDADE EST.PAULISTA JÚLIO DE MESQUITA FILHO; Volume: 24; Issue: 4 suppl 1 Linguagem: Inglês

10.4322/bds.2021.e2792

2178-6011

Thalita de Paris Matos, Jullian Josnei de Souza, María Luján Méndez Bauer, Alejandra Núñez ALDAZ, Luiza Jardim Frossard Duarte, Marcos de Oliveira Barceleiro, Alessandra Reis, Alessandro Dourado Loguércio,

Dental Erosion and Treatment

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.