- SDR Posterior Bulk Fill Flowable Base 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. SDR™ material has handling characteristics typical of a “flowable” composite but can be placed in 4 mm increments with minimal polymerization stress.
- SDR™ material has a self-leveling feature that allows intimate adaptation to the prepared cavity walls.
- Available in one universal shade, it is designed to be overlayed with a methacrylate-based universal/posterior composite for replacing missing occlusal/facial enamel.
- Advanced Chemistry and amazing Procedures
- Bulk Fill base in Class I and II restorations
- Up to 60% less stress than conventional flowable
- Single component, fluoride-containing, visible light-cured
- Prepare the cavity so that no residual amalgam or restorative material is left
- Rinse the surface with water spray and carefully dry it with air spray.
- Do not desiccate the tooth structure
- Use a dental dam or cotton rolls to isolate the cavity from contamination.
Placement of Matrix
- For optimal proximal contacts proceed as follows:
- Place a matrix (e.g. AutoMatrix® matrix system or Palodent matrix system) and wedge. Burnishing of the matrix band will improve contact and contour.
- Pre-wedging/BiTine® ring placement is advocated
- In class II cavities use a dead soft, thin matrix band.
Pulp protection, Tooth Conditioning/Dentin Pretreatment, Adhesive Application: Refer to adhesive manufacturer’s directions for pulp protection, tooth conditioning, and/or adhesive application. Once the surfaces have been properly treated, they must be kept uncontaminated. Proceed immediately to the placement of SDR material.
- Barium-alumino-fluoro-borosilicate glass
- Strontium alumino-fluoro-silicate glass
- Modified urethane dimethacrylate resin
- Ethoxylated Bisphenol A dimethacrylate (EBPADMA)
- Triethyleneglycol dimethacrylate (TEGDMA)
- camphorquinone (CQ) Photoinitiator
- Butylated hydroxyl toluene (BHT)
- UV Stabilizer
- Titanium dioxide
- Iron oxide pigments
- In most applications, a body shade of occlusal restorative material provides the best esthetic result.
- In the case of heavily stained dentin, the use of an opaque shade may be required.
- Do not disturb or allow contamination of cured surface or exposed adhesive.
- If contamination occurs, follow adhesive manufacturer’s directions for use for re-application of adhesive.
- If surfaces remain undisturbed, an additional application of adhesive between increments is neither necessary nor recommended.
- If contouring, finishing, and/or polishing of cured SDR™ material is necessary, use traditional rotary devices following manufacturer’s Directions For Use.
Placement of SDR material
- Note: As SDR™ material is designed to conform to cavity shape, proper contact areas must be established with the matrix system selected. The material will not distend the matrix band.
- If needed, manually distend matrix band with a suitable hand instrument such as a condenser or ball burnisher prior to and/or during light curing
- Dispense SDR™ material directly into preparation site/tooth surface from the Compula Tip using slow, steady pressure.
- Begin dispensing at the deepest portion of the cavity, keeping Tip close to the cavity floor.
- Gradually withdraw Tip as a cavity is filled.
- Avoid lifting the Tip out of dispensed material while dispensing to minimize air entrapment.
- At the completion of dispensing, wipe Tip against the cavity wall while withdrawing from the operative field.
- Within a few seconds, dispensed SDR material will self-level, eliminating the need for further manipulation with hand instruments. In case of overfill or excess on occlusal margins, use a flocked applicator Tip wetted with residual adhesive to remove excess. Any visible air bubbles should be pierced with a clean, sharp explorer prior to curing
- When used as a Bulk Fill Base material, most cavities may be filled in one bulk increment up to 4 mm as needed to fill the cavity 2 mm short of the occlusal cave surface. In deeper preparations, place material in 4 mm increments, thoroughly light curing each increment
- Alternatively, SDR™ material may be placed in a thin layer as a traditional “flowable” liner on exposed dentin.
- Curing SDR material is designed to be cured in increments up to a 4 mm depth/thickness
- Light cure each area of the restoration surface with a suitable visible light curing unit designed to cure materials containing camphorquinone (CQ) initiator, i.e. spectral output containing 470 nm. Minimum light output must be at least 550 mW/cm2 exposure for at least 20 seconds. Refer to curing light manufacturer’s recommendations for compatibility and curing recommendations.
Completion: Proceed immediately to complete the restoration using a methacrylate-based universal/posterior restorative material following the manufacturer’s.