Abstract
In orthognathic surgery，what is important in the collaboration between orthodontists and surgeons is the sharing of major treatment policies and patient backgrounds．1，Avoid maxillary setback．2，Preoperative correction of skeletal open bite does not require closing the open bite．3，In Class III case，there is no need to create the amount of movement．4，Genioplasty perform in two stages．5，Bi-gnathic surgery is recommended for facial asymmetry and mandibular retrognathia．6，Final occlusion should be determined by the orthodontist．7，In patients with depression and dysmorphophobia，orthognathic surgery does not improve symptoms．Avoiding intervention in patients with avoidable problems can lead to increased patient satisfaction．
