Abstract
Recently, fiber-reinforced resin composites, which show similar elastic modulus to dentin and high bonding
efficacy, have been widely used as a post to reduce root fractures, achieve high retention, and ensure root canal
sealing.
Many resin composite core build-up systems containing dual-cure self-etching adhesive are on the market.
SHOFU INC. developed the “BeautiCore System” as a bioactive resin core system, applying original S-PRG
technology.
In this study, we observed the interfacial structure between the radicular or coronal dentin and the resin
composite under FE-SEM.
The results showed that BeautiCore Flow Paste/radicular dentin junction or BeautiCore Paste/coronal
dentin junction was very tight. However, the adhesive layer was very thin and could not be clearly observed.
Furthermore, the hybrid layer could not be recognized at the superficial dentin surface.
We thought that this system was clinically useful based on the high bonding efficacy to dentin, and easy buildup performance with two different kinds of flow resin composite.
