ABSTRACT
Abstract Clinical trials have identified secondary caries and bulk fracture as the main causes for composite restoration failure. As a measure to avoid frequent reinterventions for restoration replacement, composites with some sort of defense mechanism against biofilm formation and demineralization, as well as materials with lower susceptibility to crack propagation are necessary. Also, the restorative procedure with composites are very time-consuming and technically demanding, particularly concerning the application of the adhesive system. Therefore, together with bulk-fill composites, self-adhesive restorative composites could reduce operator error and chairside time. This literature review describes the current stage of development of remineralizing, antibacterial and self-healing composites. Also, an overview of the research on fiber-reinforced composites and self-adhesive composites, both introduced for clinical use in recent years, is presented.
Subject(s)
Composite Resins/chemistry , Dental Research/trends , Dentin-Bonding Agents/chemistry , Anti-Bacterial Agents/chemistry , Dentin/drug effects , Glass/chemistry , Materials Testing , Tooth RemineralizationABSTRACT
Objective: this study aimed to perform a literature review to facilitate the understanding regarding the type of silane used, as well as the processes involved in silanization of filler particles of dental composites. Literature review: the silane agent is essential to promote a bond between organic and inorganic phases of dental composites. The topics addressed in this study are: basic formulation of monomers employed in dental composites, filler particles used, the importance of the bonding agent in material composition, as well as the types of MPTS silane (γ - methacryloxypropyltrimethoxysilane), OTMS (n-octyltrimethoxysilane) UDMS (3-[(1,3(2)-dimethacryloyloxypropyl)- 2 (3)-oxycarbonylamido] propyl triethoxysilane), GPS (γ- glycidoxypropyltrimethoxysilane), and ATES (organosilanes alyltriethoxysilane), the effects of its applications and silanization processes. Final considerations: a detailed analysis of silane agents allows the knowledge of the advantages and disadvantages of these materials to lead to the improvement and subsequent development of other bonding agents that are more suitable for use in the oral cavity.