Abstract
Objective: This prospective in vivo study aimed to compare the clinical behavior of a flowable composite resin (Genial Universal Flo, GC) and a nanohybrid universal composite resin (Tetric Evo Ceram, Ivoclar Vivadent) used in Class I and II direct esthetic restorations in posterior teeth. Methods: A total of 108 Class I and II direct restorations were performed in patients aged between 20 and 60 years. The originality of this study lies in the fact that both materials were placed in pairs, in the same clinical environment (i.e., the same patient and the same type of tooth). The evaluations were performed now of restoration and after 2-weeks, 6-, 12-, and 24-months intervals using clinical examination, clinical photographs, and radiological examination, according to modified USPHS criteria. Statistical analysis was performed using the Fisher exact test and chi-square analysis. Results: At baseline, the universal composite resin showed better esthetic properties such as surface luster, surface staining marginal staining. Both materials regressed significantly over time with no significant difference between groups. Conclusions: Both flowable and nanohybrid composite resins exhibit acceptable clinical performance. The present 24 months of evaluation of different composites showed that the G-ænial Universal Flo could be an effective esthetic material for posterior restoration. No significant difference between both materials over time concerning surface luster, surface staining, and marginal staining.
Highlights
Introduction distributed under the terms andComposite resins have evolved considerably
Several clinical studies have confirmed the use of composite resins to restore Class I
11.1% of the Tetric Evo Ceram restorations and 20.4% of the G-ænial theseUniversal percentages increased to 83.3% for Tetric Evo Ceram (p < 0.001), and to 90.7% fo
Summary
Introduction distributed under the terms andComposite resins have evolved considerably. Direct composite resin restorations have become an essential part of conservative treatments in restorative dentistry [1]. Their use for the direct restoration of posterior lesions is increasing in dental practice, especially because of the esthetic outcome and noninvasive conservative approach [2]. The introduction of welldispersed inorganic particles into a resin matrix is extremely effective for improving the performance of polymeric composite material. Those composites were introduced to provide a material with high initial polishing combined with superior polish and gloss retention as well as wear resistance [5,6,7]
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