Dental composites are nowadays widely used and are made of an acrylic resin matrix reinforced with glass filler microparticles. Unfortunately, due to the formation of microcracks approximately 25% of the replacements are caused by fracture of the restoration. The development of novel self-healing and fatigue-resistant composite restorations with the capacity to repair cracks in situ for extended periods of time would overcome the main shortcoming of the current generation of dental composites.
Comment No. 171