Impact of S-PRG/Giomer and Bulk-Fill technologies on the hygroscopic profile of resin composites under erosive condition

Mylena Proença Costa; Isabella Dorigheto de Souza; Marina Ciccone Giacomini; Giovanna Speranza Zabeu; Juliana Carvalho Jacomine; Linda Wang

doi:10.1016/j.jdent.2024.105440

Impact of S-PRG/Giomer and Bulk-Fill technologies on the hygroscopic profile of resin composites under erosive condition

J Dent. 2024 Oct 29:105440. doi: 10.1016/j.jdent.2024.105440. Online ahead of print.

Authors

Mylena Proença Costa¹, Isabella Dorigheto de Souza², Marina Ciccone Giacomini³, Giovanna Speranza Zabeu⁴, Juliana Carvalho Jacomine⁵, Linda Wang⁶

Affiliations

¹ Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil. Electronic address: [email protected].
² Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil; Hospital for Rehabilitation of Craniofacial Anomalies, Department of Orthodontics, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil. Electronic address: [email protected].
³ Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil; University Centre Integrated Faculties of Ourinhos, Ourinhos, SP, Brazil. Electronic address: [email protected].
⁴ Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil; School of Dentistry, Centro Universitário Sagrado Coração - UNISAGRADO, Bauru, SP, Brazil. Electronic address: [email protected].
⁵ Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil. Electronic address: [email protected].
⁶ Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil. Electronic address: [email protected].

PMID: 39481827
DOI: 10.1016/j.jdent.2024.105440

Abstract

Objective: The emergence of new resin composites (RCs) incorporating bioactive ingredients and/or used as bulk-fill materials aims to enhance restorative potential beyond just the mechanical properties. However, this innovation may affect their performance under clinically simulated conditions, such as erosive challenges (EC). This study evaluated the impact of different technologies on the hygroscopic properties of RCs.

Materials and methods: The evaluated materials were: Gold Label-GL (resin-modified glass-ionomer cement-control); Filtek Z350-FZ (no bioactive control); Filtek One Bulk-FO (bulk-fill); Beautifil II-BII (bioactive/S-PRG); Beautifil Bulk-BB (bioactive/S-PRG + bulk-fill). Disk-shaped specimens (10mmx1mm) were prepared and evaluated by: 1) water sorption-WS and solubility-WSB (n=10); 2) wettability-W (n=6); 3) surface microhardness-SM (n=6); 4) qualitative surface analysis by SEM (n=3). Except for WS and WSB, tests were performed before and after EC. Data were analyzed by two-factor ANOVA and Tukey tests (p<0.05).

Results: Positive WS and negative WSB were observed for all materials. In terms of W, GL>BII>FZ>BB>FO. GL and BB exhibited similar/lower SM. EC hampered SM for all materials.

Conclusions: It may be concluded that the composition and proportion of monomers have a greater influence on the hygroscopic profile of resin composites than the incorporation of bioactive components.

Clinical significance: While renewed technologies have introduced components to enhance the performance and practicality of resin composites, actual clinical longevity depends on challenges such as erosive conditions. Bioactive ingredients seem to be beneficial without impairing the hygroscopic profile, whereas the monomers can interfere.

Keywords: Composite Resins; Erosive tooth wear; Hydrophilic Interaction; Surface Properties; Wettability.