Oxide and siliceous surfaces of restorative materials

Oxide and siliceous surfaces of restorative materials refer to the chemical and physical interfaces of synthetic substances used in dentistry, such as glass-ceramics, zirconia, and metal alloys (Matinlinna et al., 2018). These surfaces serve as the substrate for adhesive bonding, which is essential for the retention and longevity of dental restorations like crowns, veneers, and fillings (Blatz et al., 2003). Siliceous surfaces are primarily composed of silicon dioxide and are typically conditioned using hydrofluoric acid etching followed by the application of silane coupling agents to create a chemical bridge between the inorganic ceramic and organic resin (Lung & Matinlinna, 2012). In contrast, oxide surfaces, such as those found on zirconia or alumina, lack a glass phase and require different priming strategies, often involving phosphate-based monomers that bond to the metal oxide layer (Kern, 2015). Although these surfaces are not biological receptors or enzymes, their proper management is vital for preventing secondary caries and ensuring the mechanical stability of the restoration within the oral cavity (Yoshihara et al., 2015).

Other names

Dental restorative surfacesSilica-based dental materialsMetal oxide dental surfacesCeramic restorative surfacesGlass-ceramic surfacesZirconia surfaces

Chemical bonding through silanization of siliceous surfaces to form siloxane networks and coordination bonding of acidic phosphate monomers (like MDP) to metal oxide layers, often supplemented by micromechanical interlocking created by acid etching or air-particle abrasion (Matinlinna et al., 2018; Kern, 2015).