Orientation aid for posterior tooth setup in transverse view: static and dynamic occlusion contacts lie within this zone, i.e. in the corridor of the upper and lower opposing alveolar ridge areas; static occlusion contacts are ideally located on the determined static line.

Orientation aid for posterior tooth set-up in transversal view: Static and dynamic occlusal contacts are located within this zone, i.e. in the corridor of the upper and lower opposing alveolar ridge areas; static occlusal contacts are best located on the determined static line.