Abstract
In cases of using lingual appliances considerable differences with labial appliances in tooth movement have been experienced.
Especially in lingual orthodontic treatment, in the early stages of treatment posterior disclussion can occur and there are differences concerning the moment of the tooth and the biomechanics are rather different to that in labial treatment.
During treatment biomechanics should be carefully considered and a suitable anchorage system must be selected. In this case not only control of the A-P direction but also the vertical direction of the anchorage is an important factor.
Concerning kinds of anchorage control, one is using the occlusal function, another is using micro screws. There are a number of other anchorage methods.
Due to the position of the implantation of the mini screw easy control of the A-P and vertical directions is possible.
Taking these ideas in to consideration I would now like to give you my personal opinion about selection of anchorage systems.
