Bulk Fill Composite – Opus APS by FGM for Efficient Posterior Restorations

Bulk fill composite materials allow dentists to restore posterior cavities using thicker increments while maintaining adequate curing depth and mechanical strength. These materials improve clinical efficiency by reducing layering steps during restorative procedures.

Opus Bulk Fill APS by FGM is a light-cured restorative composite designed for posterior teeth. Its advanced APS (Advanced Polymerization System) technology supports controlled working time under ambient light while enabling deep polymerization in increments of up to 5 mm.

Key Features of Opus APS Bulk Fill Composite

• Increment placement up to 5 mm thickness

• Approximately 79% filler content by mass

• Extended working time under operatory light

• High curing depth

• Controlled translucency before curing with increased opacity after polymerization

• Minimal shade variation before and after light curing

• Suitable for single-increment posterior restorations

Bulk Fill Composite Benefits

This material reduces chairside time by allowing bulk placement instead of multiple thin layers. As a result, clinicians can complete restorations more efficiently without compromising strength.

In addition, the high filler content enhances wear resistance and mechanical stability in occlusal areas. The shade stability also improves esthetic predictability during posterior restorations.

Recommended Clinical Applications

Dentists commonly use this material for:

• Direct restorations in posterior teeth (permanent and primary)

• Occlusal restorations

• Class V restorations, including cervical lesions and root erosions

• Core build-ups and reconstructive procedures

• Base or liner under direct restorations

• Repair of small enamel defects

• Repair of temporary acrylic or resin materials

Step-by-Step Usage Guidelines

1. Prepare the cavity and maintain proper isolation to prevent contamination.

2. Apply phosphoric acid and dental adhesive according to the manufacturer’s protocol of the bonding system used.

3. Place the material into the cavity in increments up to 5 mm, starting from the deepest portion and adapting it against the cavity walls.

4. Sculpt the anatomy as required.

5. Light cure for 40 seconds using an appropriate curing unit.

6. Check occlusion and adjust if necessary.

7. Finish using fine-grit burs or finishing disks.

8. Polish with felt disks and polishing paste to achieve a smooth surface.