Restoration of an amalgam-stained thooth with Bulk-Fill composite resin: a case report

Siqueira, Marina Macedo; Barbosa, Marianna Pires; Prado, Natália Araújo Silva; Rabello, Tiago Braga

Introdution Recently, composite resins that have low shrinkage and low polymerization stress have been released, the so-called Bulk-Fill composites. These offer the dental surgeon the possibility of inserting increments of up to 4 mm, making the restorative procedure faster.

Objective:

to report a clinical case of a posterior tooth restoration with discolored dentin substrate using a medium viscosity Bulk-Fill composite resin associated with an opacifying agent. Case report upon clinical and radiographic examination, a 50-year-old male patient was informed about the need to replace the defective silver amalgam restoration on the occlusal surface of tooth 16. The unsatisfactory restoration was removed and then the bonding technique was performed to restore the cavity using a two-step self-etching adhesive (AdheSE, Ivoclar Vivadent, Schann, Liechtenstein). Due to the discolored dentin substrate, an opacifying agent (IPS Empress Direct Opaque, Ivoclar Vivadent, Schann, Liechtenstein) was applied to the bottom of the cavity, and then was photoactivated for 40 s. The restoration was performed with a single increment of Bulk-Fill resin composite (Tetric N-Ceram Bulk-Fill IVB, Ivoclar Vivadent, Schann, Liechtenstein) that was photoactivated for 40 s. The finishing and polishing procedures were performed using abrasive rubbers.

Result:

at the end, an aesthetically satisfactory restoration was obtained with the aid of the opacifying agent.

Conclusion:

it is possible to perform restorations faster with medium viscosity Bulk-Fill composites. However, as it is an essentially translucent material, the use of an opacifying agent in discolored tooth substrate is recommended, in order to obtain an aesthetically satisfactory result.

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