Article
Distal movement of upper molars is challenging for patients with a dental Class II occlusion, an increased overjet or anterior crowding. Most of the conventional non-compliance devices can distalize upper molars, but with a loss of anchorage that results in an increased overjet. Appliances that are retained by palatal temporary anchorage devices, for example the Beneslider (Figure 1),1 are able to successfully distalize upper molars with no resulting anchorage loss. However, in common with lingual appliances,2 the palatal distalizer can cause discomfort to the tongue. In particular, the distal end of the guide rail can lacerate the tongue. This technique effectively reduces the likelihood of trauma to the tongue and has been successfully used in two cases.
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