Abstract
Patient with severe condition which single conventional orthodontic treatment cannot be carried out, it must be considered to undergo combination treatment between orthodontic and orthognathic surgery, so that patient's complaint about aesthetic, mastication and speech function can receive better correction. The aim of performing the orthodontic treatment before orthognathic surgery is to place teeth position ideally to the bone base before correcting the abnormality of its sceletal bone. After the orthognathic surgery there is still the orthodontic treatment to be done which has the aim to achieve good teeth occlusion, inclination and angulation. if possible comparable to the conditions described by Andrew in Six Keys of Normal Occlusion.
