Through its vertical adjustment, the fork support is used "as a wedge" during the mounting of the upper cast when it is performed with the face-bow. The fork support allows greater stability of the register, avoiding unpleasant distortions.
Through its vertical adjustment, the fork support is used "as a wedge" during the mounting of the upper cast when it is performed with the face-bow. The fork support allows greater stability of the register, avoiding unpleasant distortions.