Gold Alloy

Gold and platinum-group metals are comparatively stable in the moist environment of the mouth. Gold needs other elements for the strength required in an indirect restoration.

Metallic materials are used for fixed and removable restorations and appliances. Gold alloys are prepared for indirect restorations rather than placed directly onto tooth structure.

In the cited trials, conventionally cemented metal restorations had a lower failure rate than adhesively luted ceramic restorations, although the evidence was rated low and all studies had high risk of bias.

Gold is not used as pure gold for an indirect restoration. Alloying makes the material stronger, and the additional metals are part of the material placed in the mouth.

Metal ions released through corrosion can be associated with irritation or allergic responses. Reported sensitivity symptoms include rash, cheilitis, oral lichenoid lesions, stomatitis, and burning, tingling or itching of the oral mucosa or face.