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A technical report on repair of amalgam-dentin complex
1Center for Dental and Oral Medicine, University of Zurich, Zurich, Switzerland. Mutluozcan@hotmail.com
Operative Dentistry
|August 13, 2011
Summary
This clinical report details a chairside repair protocol for fractured amalgam-dentin restorations. The technique effectively restored a maxillary premolar
Area of Science:
- Restorative Dentistry
- Dental Materials Science
Background:
- Amalgam restorations can fail due to cusp fractures.
- Repairing failed amalgam-dentin complexes presents clinical challenges.
Observation:
- A maxillary right first premolar with an amalgam restoration exhibited a buccal cusp fracture.
- The existing amalgam restoration and surrounding enamel required conditioning and etching.
Findings:
- A chairside repair protocol was successfully implemented using silica coating, phosphoric acid etching, and a bonding agent.
- Silanization of amalgam, application of opaque resin, and layering of resin composite restored the fractured cusp.
- The repaired tooth was finished and polished, integrating the amalgam and composite restoration.
Implications:
- This protocol offers a viable chairside solution for repairing fractured amalgam-dentin restorations.
- The technique may extend the lifespan of existing amalgam restorations, avoiding complete replacement.
- Further studies could evaluate the long-term durability and clinical outcomes of this repair method.
