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编辑课件
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Presurgical Treatment Phase
▪ Presurgical orthodontics ▪ Final surgical planning
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Objectives —— Presurgical orthodontics
✓ Decompensation dental compensation for skeletal deformity angulation of teeth accentuate the deformity
Indications: - mandibular excess - mandibular asymmetry (combined with SSRO)
back
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Surgeries for mandibular deformity
✓ Subapical osteotomy
Indications: - bimaxillary protrusion / open bite - leveling the plane of occlusion - uprighting anterior teeth
✓ Bleeding ✓ Infection ✓ Necrosis of teeth / bone ✓ Healing ✓ Injury of nerve
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Postsurgical Treatment Phase
▪ Completion of orthodontics ▪ Postsurgical restorative/prosthetic treatment ▪ Follow-up
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Surgeries for maxillary deformity
✓ Segmental osteotomy (Anterior / Posterior)
Indications: - maxillary protrusion - marked protrusion of maxillary teeth - open bite
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(distance, direction) Postoperative occlusion
articulator
Face-bow
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Surgical Treatment Phase
▪ Surgeries for maxillary deformity ▪ Surgeries for mandibular deformity
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Objectives —— Presurgical orthodontics
✓ Alignment of the arches ✓ Compatibility of the arches
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Final Surgical Planning
✓ Visual Treatment Objective, VTO
Dental-maxillofacial Deformities
Dept. of Oral & Maxillofacial Surgery School of Stomatology
LI Qing-yun
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Phase I Phase II Phase III
Presurgical treatment
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Surgeries for mandibular deformity
✓ genioplasty
Indications: - chin deformities
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Perioperative complications
✓ Airway obstructionedema / bleeding / displacement… …
Indications: - mandibular excess - mandibular deficiency - mandibular asymmetry
编辑课件
back
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rotate
18
Surgeries for mandibular deformity
✓ Vertical ramus osteotomy
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Surgeries for maxillary deformity
✓ Le Fort I osteotomy (total or segmental)
Indications: - maxillary deformities - mandibular deformities
编辑ห้องสมุดไป่ตู้件
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Surgeries for maxillary deformity
• Orthodontics • Surgical plan
Surgical treatment
• Mandible • Maxilla
Postsurgical treatment
• Orthodontics • restorative/prosthetic treatment • follow-up
✓ Le Fort I osteotomy ✓ Le Fort II or III osteotomy
Indications: - midface deficiency
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Surgeries for mandibular deformity
✓ Sagittal split ramus osteotomy, SSRO
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Final Surgical Planning
✓ Computerized imaging
CASSOS
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Final Surgical Planning
✓ Model Surgery Exact surgical movements
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Surgeries for mandibular deformity
✓ Body osteotomy
Indications: - mandibular excess (body) combined with ramus procedure or not - open bite / spee’s curve reduction