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Why choose SDR® flow+ Bulk Fill Flowable?

Achieve Gap-Free Restorations

This low viscosity material seamlessly adapts to cavity walls and flows easily into every nook and cranny, even with bulk fills up to 4mm.

Most Researched Bulk Fill Material

Research surrounding SDR® flow+ materials, technology and application has been extensive over the last decade.²


The SDR® flow+ self-leveling material provides easy application without agitation, ensuring excellent marginal integrity and up to 40% reduced procedure time.²

Low Stress Material

SDR® technology enables the formation of a more relaxed network to create a stress resistant composite for long-term survival.

Clinically Proven

SDR® flow+ and the bulk fill technique have been proven safe, effective and clinically durable compared to conventional layering techniques.¹

The leading and still unmatched flowable bulk-fill material

With over 62 million applications worldwide since its inception, it's not surprising that SDR® flow+ Bulk Fill Flowable is the most preferred flowable for use as a base-liner in Class I and II restorative procedures.

"It’s evolved to be a truly dynamic product, I can use in every restoration. Whenever I see dentin, SDR® is going down."

Dr. Alan Atlas, DDS

"The material has an excellent flow characteristic, making it perfect for filling in the deepest portion of your Class I and II restorations."

Thomas E. Bunin, DDS

"SDR® flow+ Bulk Fill Flowable ensures a tight seal of the endodontic access cavity – an important factor for long-term endodontic treatment success."

Prof. Dr. Schirrmeister, University of Freiburg, Germany

Clinicians may have been compensated for use of their testimonials.

For what indications can SDR® flow+ Bulk Fill Flowable be used?

SDR® flow+ Bulk Fill Flowable can be used in a variety of indications including Class I, II, III and V, primary posterior dentition, pit and fissure sealing and core build-up.

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As part of its Class II approach, Dentsply Sirona provides the tools and techniques necessary for patient satisfaction and procedure success. See how dentists have had success with Class II.


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SDR® flow+ is a self-leveling, bulk-fill flowable composite with low shrinkage stress that is designed to simplify the process of filling posterior Class I and II cavities. This cutting-edge composite material allows the placement of gap-free restorations, is easy to use, and minimizes shrinkage stress to make sure the material stays adapted during light curing.

SDR® flow+ is optimized for bulk filling posterior cavities that are challenging to access during a dental treatment. Unlike conventional filling materials, it is flowable and can be placed in up to 4 mm increments. This allows dental practitioners to fill a large portion of the posterior cavity in just one step with a flowable material that adapts itself to the cavity walls without further instrumentation. The unique chemistry of SDR® flow+ also minimizes shrinkage stress that otherwise could lead to gap formation during light curing. 

Using SDR® flow+ has a number of advantages, including a reduced risk of postoperative sensitivity and enhanced marginal integrity, which is an important factor in the prevention of secondary caries. It also makes the creation of a uniform, void-free restoration easier thanks to the material's self-leveling qualities, and its high radiopacity simplifies monitoring of the restoration over time.

SDR® flow+ is indicated for a variety of dental procedures, including the filling of Class I, II, III and V cavities, pit&fissure sealing, and even core build-ups before placing a crown.  It is applied in its flowable state through injection from a syringe, or a small capsule called “Compula Tip”. After placement, SDR® flow+ gets light cured by the application of blue light (440 – 480 nm wavelength) from a dental polymerization light. This allows the material to create a dense molecular network and replace the tooth substrate that was drilled away as a permanent restoration.

Start at the bottom of the box, slowly withdraw tip, wipe tip across cusp and allow to self-level for a few seconds. Do not use an instrument to manipulate as this can disturb the self-leveling behavior of the materials. 

SDR® flow+ passes comprehensive testing to guarantee that it is safe for patients to use and that it is biocompatible. It is a secure and reliable option for dental restorations because it is free of Bisphenol A (BPA) and other potentially dangerous compounds.

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  1. van Dijken JWV, Pallesen U, 2017: Bulk-filled posterior resin restorations based on stress-decreasing resin technology: a randomized, controlled 6-year evaluation.; Eur J Oral Sci. 2017 Aug;125(4):303-309.
  2. Internal data on file. For more information, contact