22mm x 20 m Roll, 2-Sided Bausch Arti-Fol Occlusion films are especially suitable for representing static and dynamic occlusion in several colors. The first step is to inspect the concentric contact (static occlusion) in red and the second step to inspect the eccentric contacts (dynamic occlusion) in black. The color sequence can always be alternated. Several different colors can be used for a much more precise reprensentation of dynamic occlusion.?