正畸_预防医学_医药卫生_专业资料__幻灯片.pptVIP

* * Dental-maxillofacial Deformities Dept. of Oral Maxillofacial Surgery School of Stomatology LI Qing-yun Phase I Presurgical treatment Orthodontics Surgical plan Phase II Surgical treatment Mandible Maxilla Phase III Postsurgical treatment Orthodontics restorative/prosthetic treatment follow-up Presurgical Treatment Phase Presurgical orthodontics Final surgical planning Objectives —— Presurgical orthodontics Decompensation dental compensation for skeletal deformity angulation of teeth accentuate the deformity Objectives —— Presurgical orthodontics Alignment of the arches Compatibility of the arches Final Surgical Planning Visual Treatment Objective, VTO Final Surgical Planning Computerized imaging CASSOS Final Surgical Planning Model Surgery Exact surgical movements (distance, direction) Postoperative occlusion Face-bow articulator Surgical Treatment Phase Surgeries for maxillary deformity Surgeries for mandibular deformity Surgeries for maxillary deformity Segmental osteotomy (Anterior / Posterior) Indications: - maxillary protrusion - marked protrusion of  maxillary teeth - open bite Surgeries for maxillary deformity Le Fort I osteotomy (total or segmental) Indications: - maxillary deformities - mandibular deformities Surgeries for maxillary deformity Le Fort I osteotomy Le Fort II or III osteotomy Indications: - midface deficiency Surgeries for mandibular deformity Sagittal split ramus osteotomy, SSRO Indications: - mandibular excess - mandibular deficiency - mandibular asymmetry Ad back rotate Surgeries for mandibular deformity Vertical ramus osteotomy Indications: - mandibular excess - mandibular asymmetry (combined with SSRO) back Surgeries for mandibular deformity Subapical osteotomy Indications: - bimaxillary protrusion / open bite - leveling the plane of occlusion - uprighting anterior teeth Surgeries for mand