Gold in dentistry: Alloys, uses and performance

The current uses of gold in dental applications are reviewed and the major gold-based dental alloys are described with reference to current International Standards. Newer techniques, such as electroforming, are highlighted with suggestions for potential future areas for research and development. The future role of gold in restorative and conservative dentistry is also discussed in the light of increasing competition from alternative materials. It is clear that if longevity, functionality, aesthetics and biocompatibility, together with ease of manufacture are considered as the most important selection criteria, the optimum material for dental restorations is still an approved gold alloy.