evaluated for carious lesions and faulty restorations. Teeth should be evaluated endodontically and periodontally for restorability, and any nonrestorable teeth should be extracted before surgical intervention. All carious lesions must be restored early inthe presurgical treatment phase, Existing restorations must function for 18 to 24 months during the orthodontic and surgical treatment phases, requiring that more durable restorative materials(i.e .. amalgam, composite resin) are used. even though
they may be ‘replaced during the definitive postsurgical treatment phase. It is wise to delay final restorative treatment until the proper skeletal relatlonships are achieved and the finishing orthodontics completed.