Clinical evaluation of a posterior composite resin containing a semiporous filler particle

Bowen recently developed a new filler particle for composite resin restorations. The surface particles of a diphasic strontium glass are superficially etched and after silanating the surface, the microscopic defects are filled with prepolymerized resin. The filler particles are then bonded chemically and mechanically to the resin matrix. This paper discusses the clinical performance of this material as a posterior composite resin over a two year period.