[Orthodontic treatment and periodontal soft tissue augmentation].

During the orthodontic treatment, if the root moves lingually, the risk of buccal gingival recession is low. On the contrary, if the root moves buccally, the thin buccal bone probably leads to the buccal gingival recession. In patient without gingival recession, bony dehiscence and fenestration make the situation complicated. Both of the directions show high risk of gingival recession. The present article, from the point of view of periodontal soft tissue, introduces the periodontal soft tissue augmentation technique related to orthodontic treatment and the timing of the surgery.