The use of gold and gold alloys in prosthetic dentistry – a literature review

Abstract

601 165 205can be made of galvanized gold [11,16,28]. Thus, new technologies has made gold and its alloys a kind of a universal material.Gold is a noble metal with very good chemical resistance. It also does not become oxidized in water or air. Pure gold has a bright yellow color and shine, and it is a heavy, but soft metal with huge plasticity and ductility. For many years, gold and its alloys have been recognized as being great prosthetic material in dental practice. In current dentistry, the progress in materials science and galvanoforming techniques have made it possible to create precise restorations utilizing this metal. This pertains both to fixed and removable dentures. Galvanized gold has a range of advantages, among these being biocompatibility, proper marginal tightness, endurance, its esthetic design and the fact that it boasts bacteriostatic features.

Application of Biomaterials in Dentistry

“…The use of gold alloys has developed in PFM restorations in the last 20-30 years, which, is due to the unique characteristics of the metal, such as resistance to bending and thermal expansion coefficient close to porcelain. In addition to dental restorations,some of the orthodontic wires and splints can also made by a gold alloy [21,22].…”

Materials and Methods for All-Ceramic Dental Restorations Using Computer-Aided Design (CAD) and Computer-Aided Manufacturing (CAM) Technologies—A Brief Review

“…Usually, the preferred material is gold, in combination with other metals, such as copper, chromium, or nickel. The choice of gold material for the fabrication of dental restorations is justified by its strength and durability; in fact, gold restorations offer ideal long-term protection for the natural tooth, are easy to remove, and rarely chip [ 12 ].…”

“…This reduces the number of steps in the process of prosthesis design, creation, and implantation; furthermore, it reduces the manufacturing time, and increases the accuracy and quality of the final product. Moreover, CAD/CAM technology allows for the creation of dental structures with complex shapes and designs, which increases flexibility and accuracy in the treatment of each patient [ 12 ]. As a result, the use of this technology increases the design possibilities and production speed for ceramic elements in dentistry.…”

Cytotoxicity and Microbiological Assessment of Maxillary Acrylic Resin Complete Dentures Reinforced by Gold Plated Cr-Co Palatal Plate (A Randomized Controlled Clinical Trial with Laboratory Assessment)

“…In the past ten years, restorative and conservative dentists have used the electroforming procedure more frequently (9) . Dental restorations can be electroformed using non-cyanide baths that contain a gold sulfite electrolyte with the chemical formula: [Au(Amin) 2 (SO3)2] 3-⇔ [Au(Amin)2] + + (2 SO3) 2- (10) To predict a material's biocompatibility, one must be aware of its dissolving characteristics, cytotoxicity, and, regarding metals and alloys in the mouth, information on electrochemical potentials. Saliva has electrochemical potentials for the metals and alloys found in human mouths.…”