Dentsply Sirona SureFil® SDR® flow+ Bulk Fill Flowable is a one-component, fluoride-containing, visible light cured, radiopaque resin composite restorative material. It is designed to be used as a base in Class I and II restorations. It is also suitable as a stand-alone restorative material in non-occlusal-contact applications.

SDR flow+ material has handling characteristics typical of a “flowable” composite, but can be placed in 4 mm increments with minimal polymerization stress. SDR flow+ material has a self-leveling feature that allows intimate adaptation to the prepared cavity walls. When used as a base/liner, it is designed to be overlayed with a methacrylate based universal/posterior composite for replacing missing occlusal/facial enamel.