Orthopedic implant applications include components for hips, knees, shoulders, ankles and trauma products.
These are the materials of choice for many components, which is titanium or Ti-6-4 alloy, due to their biocompatibility, good mechanical properties, light weight and corrosion resistance.
The need for a PVD coating is greatest on components for improving the wear resistance and a high coefficient of friction.
PVD coatings improved both the performance and aesthetics of surgical instruments. Commonly used materials for handheld instruments include the 300 series, 400 series and precipitation hardened stainless steels.
Orthodontic appliances include wires, brackets and instruments used to adjust orthodontic braces. Both brackets and wires are PVD coated for aesthetics. TiN and ZrN are the most commonly used. The high hardness and excellent adhesion of TiN and ZrN has eliminated the rapid abrasion of the virgin surface layer.