[Recording occlusal indicators. Introduction to occlusal surface materials and roughness]

The quality of 4 foils, 6 papers and 4 tapes being used for marking occlusal contacts are examined. The influence of surface material and the roughness of surfaces are demonstrated. Indicators on plastics colour best, those on ceramics worst. As a rule unpolished surfaces show better results than those being extremely polished. Foils are the most exact markers. But they are less apt for smooth surfaces of ceramics and amalgam as well as for the rough surface of gold-alloys. In those cases thin articulating papers have preference.