Pre-operative appearance of Tooth no. 19 with a fractured Class II DO composite restoration.
After placement of rubber dam isolation.
The old composite restoration and caries were removed. Note that the buccal-distal cusp was also compromised.

The Palodent̖® Plus sectional matrix system was placed using the Ni-Ti ring (size Universal) and the 6.5 mm matrix to prevent gaps in gingival-axial corner.

Buccal view of the matrix system in position. Note perfect adaptation of the matrix.
The hollow underside of the wedge allows placement of a second wedge from the opposite side for a tight gingival margin. In this case, large and medium sizes were used.
Enamel margins were selectively etched with phosphoric acid for 15 seconds.
Note the chalky white appearance after rinsing off the phosphoric acid and air-drying.

Prime&Bond Elect® Universal adhesive system was applied in the selective etching mode.

After solvent evaporation, light curing was performed with SmartLite® Focus® curing light for 10 seconds.

SureFil® SDR® flow composite (shade A1), which is a self-leveling bulk-fill, low polymerization stress composite, was inserted. Application was initiated in the distal proximal box.

In one single increment of up to 4 mm, SureFil® SDR® flow was inserted to replace dentin structure. Light-activation was performed for 20 seconds with SmartLite® Focus® curing light.

Afterwards, TPH Spectra® universal composite HV (shade A1), was used for the occlusal surface. First, a composite increment was inserted for reconstruction of distal proximal ridge.

Appearance after placement of composite and characterization stains.

Finishing was completed using Enhance® Finishing System, followed by PoGo® Polishing System to improve the final luster. 

Immediate final result after minor occlusal adjustment.