Comparison of mechanical properties of a new fiber reinforced composite and bulk filling composites

Abstract

ObjectivesThe aim of this study was to evaluate the mechanical and physical properties of a newly developed fiber reinforced dental composite.Materials and MethodsFiber reinforced composite EverX Posterior (EXP, GC EUROPE), and other commercially available bulk fill composites, including Filtek Bulk Fill (FB, 3M ESPE), SonicFill (SF, Kerr Corp.), SureFil (SDR, Dentsply), Venus Bulk Fill (VB, HerausKultzer), Tetric evoceram bulk fill (TECB, Ivoclar Vivadent), and Xtra Base (XB, Voco) were characterized. Composite samples light-cured with a LED device were evaluated in terms of flexural strength, flexural modulus (ISO 4049, n = 6), fracture toughness (n = 6), and Vickers hardness (0, 2, and 4 mm in depth at 24 hr, n = 5). The EXP samples and the fracture surface were observed under a scanning electron microscopy. Data were statistically analyzed using one-way ANOVA and unpaired t-test.ResultsEXP, FB, and VB had significantly higher fracture toughness value compared to all the other bulk composite types. SF, EXP, and XB were not statistically different, and had significantly higher flexural strength values compared to other tested composite materials. EXP had the highest flexural modulus, VB had the lowest values. Vickers hardness values revealed SF, EXP, TECB, and XB were not statistically different, and had significantly higher values compared to other tested composite materials. SEM observations show well dispersed fibers working as a reinforcing phase.ConclusionsThe addition of fibers to methacrylate-based matrix results in composites with either comparable or superior mechanical properties compared to the other bulk fill materials tested.

Load-bearing capacity of novel resin-based fixed dental prosthesis materials

“…Of the resin-based materials used in this study, a short, discontinuous fiber composite (EverX Posterior) has been intended to be used for dentine replacement in large, deep and high-C factor design cavities. Furthermore, a previous study provided that EverX Posterior could be used in 4 mm increments in extensive posterior cavities to mimic the stress absorbing properties of dentine 38,39) . Since, these composites enable 4-5 mm thick increments to be cured in one step; they are time-saving and easy-handling composites 40,41) .…”

Physicochemical properties of discontinuous S2-glass fiber reinforced resin composite

“…A discontinuous E-glass FRC is commercially available as a resin composite (everX Posterior, GC, Tokyo, Japan). Although studies have found that everX had superior mechanical properties compared with several commercial resin composites [19][20][21][22][23] , it was shown in the study of Leprince et al 24) that everX had inferior mechanical properties in comparison with commerciallyavailable nanohybrid materials. Therefore, the mechanical properties of glass FRCs need to be further improved.…”

Examination of the Effect of Preheating Process on Microtensile Bond Strength in the Cementation of Indirect Restorations

“…In studies on many base composites that have been proposed to imitate dentin to give durability and resilience to restoration, the bending strength of EverX Posterior composite was found to be higher than that of others (13,14). EverX Posterior was used as a base material in a group of our study in the light of these research results.…”