1 / 37

Dental-maxillofacial Deformities

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

latanya
Download Presentation

Dental-maxillofacial Deformities

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Dental-maxillofacial Deformities Dept. of Oral & Maxillofacial Surgery School of Stomatology LI Qing-yun

  2. Phase I Presurgical treatment • Orthodontics • Surgical plan Phase II Surgical treatment • Mandible • Maxilla Phase III Postsurgical treatment • Orthodontics • restorative/prosthetic treatment • follow-up

  3. Presurgical Treatment Phase • Presurgical orthodontics • Final surgical planning

  4. Objectives —— Presurgical orthodontics • Decompensation dental compensation for skeletal deformity angulation of teeth accentuate the deformity

  5. Objectives —— Presurgical orthodontics • Alignment of the arches • Compatibility of the arches

  6. Final Surgical Planning • Visual Treatment Objective, VTO

  7. Final Surgical Planning • Computerized imaging CASSOS

  8. Final Surgical Planning articulator • Model Surgery Exact surgical movements (distance, direction) Postoperative occlusion Face-bow

  9. Surgical Treatment Phase • Surgeries for maxillary deformity • Surgeries for mandibular deformity

  10. Surgeries for maxillary deformity • Segmental osteotomy (Anterior / Posterior) Indications: - maxillary protrusion - marked protrusion of maxillary teeth - open bite

  11. Surgeries for maxillary deformity • Le Fort I osteotomy (total or segmental) Indications: - maxillary deformities - mandibular deformities

  12. Surgeries for maxillary deformity • Le Fort I osteotomy • Le Fort II or III osteotomy Indications: - midface deficiency

  13. Surgeries for mandibular deformity • Sagittal split ramus osteotomy, SSRO Indications: - mandibular excess - mandibular deficiency - mandibular asymmetry back Ad rotate

  14. Surgeries for mandibular deformity • Vertical ramus osteotomy Indications: - mandibular excess - mandibular asymmetry (combined with SSRO) back

  15. Surgeries for mandibular deformity • Subapical osteotomy Indications: - bimaxillary protrusion / open bite - leveling the plane of occlusion - uprighting anterior teeth

  16. Surgeries for mandibular deformity • Body osteotomy Indications: - mandibular excess (body) combined with ramus procedure or not - open bite / spee’s curve reduction

  17. Surgeries for mandibular deformity • genioplasty Indications: - chin deformities

  18. Perioperative complications • Airway obstructionedema / bleeding / displacement… … • Bleeding • Infection • Necrosis of teeth / bone • Healing • Injury of nerve

  19. Postsurgical Treatment Phase • Completion of orthodontics • Postsurgical restorative/prosthetic treatment • Follow-up

  20. Pre treatment

  21. SNA 88° SNB 81° ANB 7°

  22. Post Le Fort I & genioplasty

  23. SNA 84° SNB 81° ANB 3°

  24. Pre treatment

  25. SNA 88° SNB 92° ANB 4°

  26. Pre operation & after presurgical orthodontic treatment

  27. SNA 88° SNB 92° ANB -4°

  28. Post Sagittal Split Ramus Osteotomy

  29. SNA 88° SNB 86° ANB 2°

  30. Post treatment

  31. SNA 88° SNB 86° ANB 2°

More Related