Purpose of Review
With the introduction of new resin-based composites (RBC) based on their adjusted shade properties, there is a need for an additional classification for such materials. This review discusses and suggests a new classification for the RBCs.
The classification of RBCs depends on different compositions and characteristics such as inorganic filler type, shape and size, resin matrix, polymerization modes, level of viscosity, clinical application protocol, and indications. The classification is generally focused on the filler size, filler type, and composition. Recently, some manufacturers have created contemporary esthetic RBC kits with enhanced color adjustment potentials. This ability is considered very specific and particularly depends on the shade and the brand of the selected composite kit. The current RBC classifications are generally inadequate in describing the shade-matching abilities of these new materials.
An additional universal terminology and related classification are required, describing the level of color adjustment potential of contemporary RBCs. The suggested new classification divides RBCs as ‘polyshade,’ ‘simplyshade,’ and ‘monoshade universal.’