The Nickel-Free Cobalt-Chromium Alloy (CoCr NF) that we use is a premium-quality material, widely used in the dental sector for permanent medical implants. It is free from nickel, cadmium and lead and is therefore compliant with the REACH regulation. Our CoCr NF material is also tested according to the DIN EN ISO 10993-1 standard, the international standard for the biological evaluation of medical devices, and is considered biocompatible.