Characterization of Contemporary Conventional, Bulk-fill, and Self-adhesive Resin Composite Materials.

Autor:	David C; Carla David, Biopathological Research Group, Faculty of Dentistry (GIBFO), University of the Andes Mérida, Mda, Venezuela; Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil., Cuevas-Suárez CE; Carlos Enrique Cuevas-Suárez, Dental Materials Laboratory, Academic Area of Dentistry, Autonomous University of Hidalgo State, Pachuca, Hgo, Mexico., de Cardoso GC; Gabriela Cardoso de Cardoso, Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil., Isolan CP; Cristina Pereira Isolan, Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil., de Moraes RR; Rafael Ratto de Moraes, Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil., da Rosa W; Wellington Luiz Oliveira da Rosa, Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil., Münchow EA; Eliseu A Münchow, Department of Conservative Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, POA, RS, Brazil., da Silva AF; Adriana Fernandes da Silva, Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil.
Jazyk:	angličtina
Zdroj:	Operative dentistry [Oper Dent] 2022 Jul 01; Vol. 47 (4), pp. 392-402.
DOI:	10.2341/21-063-L
Abstrakt:	Objective: To evaluate the physical and biological properties of different types of flowable resin composites and their bonding ability to dentin, comparing the performance of self-adhesive and bulk-fill materials with a conventional control. Methods and Materials: Four flowable resin composites were tested: two self-adhesive (Y-flow [SA_YF]; and Dyad Flow [SA_DF]); one bulk-fill (Filtek Bulk Fill Flow [BF]); and one conventional composite (Opallis Flow [OF]). The microshear bond strength (μSBS) to dentin (bovine samples) was investigated at 24 hours and 6 months of storage. The materials were also characterized by degree of conversion, cross-link density, water contact angle, color stability, and cell viability (ISO 10993-5/2009) analyses. Data were analyzed using Analysis of Variance and Tukey tests (α=0.05). Results: The μSBS values were higher for control specimens at 24 hours, whereas the resin-dentin bonds were similarly distributed among the groups after aging. Adhesive failure was the most frequent pattern observed at both time intervals. SA_YF was the only material that increased the bond strength over time. Degree of conversion increased in the following order: SA_YF (28.6±1.4%) < BF (49.7±0.8%) < OF (60.0±2.0%) = SA_DF (63.6±2.3%). Cross-link density was similar among all materials. The self-adhesive composites were more hydrophilic than the other types, with BF showing the lowest water contact angle and the greatest color alteration. All resin composites had a biocompatible behavior. Conclusion: Chemical composition appeared to be an influential factor affecting the physico-mechanical and biological behavior of the materials tested. (©Operative Dentistry, 2022.)
Databáze:	MEDLINE
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