Flowable Composite Resins as Sole Restorative Materials

The continuous need for simplified minimally invasive dental restorations using bio-materials with adequate mechanical, physical, and biological characteristics has led to an evolution in the field of flowable composites. Nanotechnology focuses on advancing highly filled flowable resin-based materials, which may be used in many restorative indications. Since these materials are a novel addition to the toolkit of restorative dentistry, the purpose of this review is to investigate their in vitro characteristics and clinical performance. Highly filled flowable composite resins proved to be a promising dental biomaterial. Considering that these materials show an ideal initial performance in the injection molding technique and in Class I and II cavities but simultaneously present several drawbacks in laboratory studies, caution should be exercised when selecting the applicable cases. Further, in vitro and clinical studies are needed to establish the precise indications and limitations of this type of biomaterials.