Abstract
Resin-based materials have been prevalent for dental restorations over the past few decades and have been widely used for a variety of direct and indirect procedures. Typically, resin-based dental materials are required to be flowable or moldable before setting and can provide adequate mechanical strength after setting. The setting method may include, but is not limited to, light-curing, self-curing or heating. In this review, based on different indications of resin-based dental materials (e.g., dental filling composite, dental bonding agent, resin luting cement), their rheological and mechanical properties were reviewed. Viscous and flexible properties were focused on for materials before setting, while elastic properties and mechanical strength were focused on for materials after setting. At the same time, the factors that may affect their rheological and mechanical properties were discussed. It is anticipated that the insightful information and prospections of this study will be useful to the future development and fabrication of resin-based dental restorative materials.
Highlights
Dental filling composites can be divided into universal composites and flowable composites based on their consistency, which have been widely used for dental restorations
The rheological properties of universal composite resins are related to filler volume, filler particle diameter and temperature
Universal composites can be modified by changing the type or amount of filler and the resin matrix
Summary
Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. Resin-based dental restorative materials are a class of composites used for direct or indirect repair with polymerizable resin as a matrix and inorganic filler or fiber as reinforcement [4]. They are typically formulated with methacrylate monomers, initiators and fillers and are cured through radical polymerizations, resulting in hard materials. Dental composites can be divided into many types for different characteristics (e.g., filler sizes, curing method, indications) and universal versus flowable based on their consistency is the most commonly used distinguishing way for commercial products designed for different clinical applications [20]. Universal dental composites and flowable dental composites are categorized in this review
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