Current dental resin composites last, on average, about 7 years due to fracture and secondary caries caused by materials degradation and micro-leakage. Polymerization shrinkage and stress cause micro-leakage at the tooth interface leading to restoration failure. The ester bonds present in these materials are also hydrolyzable and can be broken down by cariogenic bacteria, acid, base, and enzymes that are present in the oral cavity. This can result in the formation of secondary caries. Furthermore, leachability of unreacted monomers and degradation by-products such as bisphenol (BPA) derivatives can occur.