Trends in restorative composites research: what is in the future?

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.

From body‐on‐frame to unibody constructions and designs mimicking biological structures – an overview

“…It is likely that scientific development will result in formulations of siloxane‐based matrix systems that form unibody design structures with remaining tooth structure, and gradually the use of traditional di‐methacrylate monomer resin systems will diminish . Combining the biomineralization of collagen fibrils to form a hydroxyl apatite interface in a controlled manner over time is one of the targets of restorative biomaterials research . In combination with natural‐origin inorganic gradient structures and modification of the present mesoscale reinforcing fibers to be on the nanoscale with helical structures, this could improve the physical properties of dental reconstructive materials to mimic the structure of natural teeth more accurately .…”

Effects of Different Application Techniques on Nanohybrid Composite Restorations Clinical Success

“…However, like all dental materials, composites have their limitations, such as the gap formation caused by polymerization contraction during setting, leading to marginal discoloration and leakage [2]. In this decade, bulk-fill composites are becoming increasingly popular due to the clinical appeal of reducing the time necessary to insert the composite into the cavity [3]. The particularity of the new material category is stated to be the option to place it in 4 mm thick bulks instead of the current incremental placement technique, without negatively affecting polymerization shrinkage or cavity adaptation.…”

Restauração de dentes tratados endodonticamente com resinas bulk-fill: revisão integrativa

“…1 A demanda por materiais e técnicas que requeiram um tempo de aplicação reduzido, resultando em melhor custo-efetividade nos tratamentos, fez com que surgissem as resinas denominadas bulk--fill. Essas resinas dispensam a realização da técnica incremental, uma vez que podem ser aplicadas em incrementos únicos de até 4 mm, [3][4][5] contrariamente às resinas convencionais. 6 Teoricamente, nas resinas bulk-fill, a tensão de contração de polimerização é reduzida, quando comparada às resinas tradicionais.…”