The Space Regainer allows space to be regained after a premature tooth loss. The appliance has tubing on the buccal and lingual of the anchorage tooth, and a sliding spring with open coil Ni-Ti spring for the Activation. The appliance is self - activating and must be monitored.
In order to regain and maintain interdental space, force can be exerted in the sagittal plane with a space regainer.