Surgical Orthodontics Flashcards
Severe discrepancies that might require orthognathic surgery to correct:
- open bite
- class III malocclusion
- asymmetry
surgery that can be done when the mid-palatal suture has not fused (if suture is fused, need to cut it back open again)
surgical assisted rapid palatal expansion (SARPE)
cutting through the symphysis of the mandible to separate and allow bone to fill in (expansion)
mandible symphyseal distraction osteogenesis
surgery done to allow for repositioning of the entire maxilla (either superior or inferior)
LeFort I osteotomy
vertical repositioning surgery
LeFort I osteotomy
- Maxillary superior repositioning = move the maxilla upwards, shorts mid face/open bite correction
- Maxillary inferior repositioning- move maxilla downwards = lengthen mid face/deep bite correction
2 anterior-posterior corrective surgeries
LeFort I osteotomy- cut bone of maxilla above apices of teeth to allow for repositioning of the entire maxilla
- Maxillary setback for class II correction
- Maxillary advancement for class III correction
Bilateral sagittal split osteotomy (BSSO)- cutting through the mandible on one or both sides in order to reposition the mandible
- Mandibular setback for class II correction
- Mandibular advancement for class III correction
surgery that improves the esthetic condition of the chin
genioplasty
surgery that can move the chin in all 3 dimensions
sliding genioplasty
post-op complication from general anesthesia: air in intestines + fever
pneumatosis intestinalis
post-op complication from general anesthesia: collapse of portion of lung + fever
alectasis
Most likely for relapse:
Least likely for relapse:
Most likely:
- Maxilla wide or down
- Mandible back
Least likely:
- Maxilla up
- Mandible forward
- Chin (any direction)
term referring to the extent a tooth’s position can be changed through growth, ortho, or surgery
envelopes of discrepancy
