Processing of Cobalt-Chrome Dental Alloys

Cobalt–Chromium (Co–Cr) alloys are used in dental prosthetics for removable partial denture restorations, complete cast metal-ceramic restorations, dental bridges, crowns, and implants. Their mechanical properties, high strength and hardness, combined with good corrosion and tarnish resistance provide them with the necessary biocompatibility and performance for extensive use. The chapter presents a brief overview of the physico-chemical properties and the processing options of Co–Cr alloys. Using modern dental laboratory processing techniques allows for the fabrication of dental prostheses by conventional casting, milling and additive manufacturing. The main principles and workflow of these processes are given, highlighting key aspects for producing dental prosthetic restorations using Co–Cr alloys.