ABSTRACT
Dental composite resins are the common materials used to a esthetically restore the structural integrity of teeth. The most common material used to fabricate the denture base is an acrylic resin made from a mixture of methyl-methacrylate and poly(methyl methacrylate). The matrix of dental composites is mainly based on different methacrylates monomers like 2,2-bis[4-(2-hydroxy-3-methacrylyloxy-propoxy)phenyl] propane, urethanedimethacrylate (UDMA), 2-(HEMA), and triethylene glycol dimethacrylate (TEGDMA). The use of high-pressure/high-temperature (HP/HT) polymerization of urethane dimethacrylate (UDMA) and triethylene glycol dimethacrylate (TEGDMA) to produce resin composite blocks (RCB) is important strategy for dental computer-aided design/manufacture (CAD/CAM) applications. Several techniques such as the micro push-out test for adhesion and failure test by stereomicroscope and scanning electron microscope including nanoindentation have been introduced to evaluate the mechanical performance of resins. The effect of dentin surface moisture and curing mode on microtensile bond strength and nanoindentation characteristics of self-adhesive resin cement will also discussed in this entry. Furthermore, a different chemical surface treatment on the adhesion of resin-core materials to methacrylate resin-based glass fiber posts is explored.
