Intraoral Registration

Intraoral registration with the Gothic arch tracing is a method to obtain condylar central position in their glenoid fossae. Since Prof. Dr. Alfred Gysi the Gothic arch tracing is the most reliable repeatable and only scientific method to find condylar central position.


The principle

The principle of the three-point table explains the stability of the mandible central position in relation to the temporomandibular joints.
The two legs painted in black and white are placed in two cups and the third leg rests on a flat surface. When a load is placed on the table, the black and white legs will glide into the centre of the cups becoming stable in their lowest part. The third leg glides correspondingly on the flat surface.
The two black and white legs represent the ascending rami of the mandible with their condyles, the two cups represent the articular fossae. The third leg represents the central supporting stylus and the loading weight represents the light pressure of the closing muscles while mandibular movements are executed for drawing the Gothic arch.
Experience and research by TMJ-radiographs prove a high reliability of the Gothic arch tracing method.