A method for simulating gingival color on aluminum alloy denture base

Materials and a technique that may be used to apply gingival color to an Al--Mg alloy, Alcoa D-214, when it is used as a denture base are described. The dyes used to color anodized films are Solatine Pink, Nuclear Fast Red, and Erythrosine at 0.5-2.5% by weight. After extensive cleaning of the denture base and anodizing for 30 min at 10 V d.c., the denture base is immersed in the dye solution, the solution boiled for 15 min and the base removed from the dye solution, cooled and rinsed. The surface is thus sealed.--Chem. Abs.