Occasionally, an imbalance of facial structures may require more than orthodontic treatment alone to provide the best results. Corrective jaw (orthognathic) surgery treats such imbalances by altering the shapes and sizes of the jaws to provide a more harmonious facial relationship. Abnormalities in facial structures may cause difficulty associated with chewing, speaking, sleeping and other routine activities. Orthognathic surgery in conjunction with orthodontic treatment corrects these problems and improves the overall harmony of the facial appearance as well as the function of the bite. Drs. Chan and Chen work closely with the oral surgeon to efficiently coordinate the orthodontic and surgical aspects of the treatment.