Dual zone color anodization for fabricating an interim implant restoration: A step-by step technique

Anodization is an electrochemical process that modifies the oxide layer on the surface of a metal, typically aluminum or titanium. In dentistry, the process has been used on titanium implant abutments to modify color for esthetic purposes. An interim implant restoration was fabricated that combined dual zone color anodization with esthetic and biologic contour concepts. The voltages in the anode were varied in 2 locations on an implant titanium abutment, resulting in a pink gingival portion and a gold body.