Orthodontic apparatus for moving teeth in longitudinal direction along jawbone uses rod with anchorage on one or more teeth and piston-cylinder arrangement pressing on tooth to be moved

摘要

The first tooth (3) has an anchoring device (1) attached to it, stabilizing a piston-cylinder arrangement (13) which can apply pressure to the tooth. A rod (19) with calibration marks (22) is connected to a second anchorage device (6) on a second large firmly-rooted tooth which acts as a reaction point. There are springs (23) applying pushing and twisting forces to the tooth.