Correction of a Class III malocclusion with a four-way sagittal appliance: case report

This case report demonstrates the treatment of a Class III malocclusion, in a twelve-year-old girl, using a unique combination of a removable functional appliance, the "four-way sagittal" appliance and fixed appliance therapy. Efficient and effective correction of malocclusion was attained, following use of the "four-way sagittal" appliance. This appliance was designed on the Denar Witzig articulator, a powerful instrument in providing the clinician with a three-dimensional perspective plus the ability of changing the location of the TMJ on the articulator. A significant increase in the maxillary length and maxillary width was achieved.