Korean J Orthod.  1996 Oct;26(5):637-645.

Combined orthodontic-surgical treatment for Class III patient with midfacial deficiency and mandibular prognathism

Affiliations
  • 1Department of Orthodontics, College of Dentistry, Seoul National University, Korea.

Abstract

In non-growing Class III malocclusion, the critical aspects which determine the need of orthognathic surgery are the severity of skeletal discrepancy, incisor inclination, overbite and soft tissue profile. Two-jaw surgery is more effective in correcting severe sagittal, vertical, transverse skeletal discrepancies and facial asymmetry. And more esthetic and stable profile can be achieved by two-jaw surgery. Some midfacial deficiency patients can be treated by pyramidal Le Fort II osteotomy to maintain infraorbital rim and malar complex and to advance nasomaxillary complex. Others who require advancement of infraorbital rim and malar complex can be treated by quadrangular Le Fort II osteotomy. On the following cases, patients who had represented midfacial deficiency and mandibular prognathism were treated with combined orthodontic-surgical therapy by Le Fort II osteotomy and BSSRO.

Keyword

midfacial deficiency; mandibular prognathism; combined orthodontic-surgical therapy

MeSH Terms

Facial Asymmetry
Humans
Incisor
Malocclusion
Orthognathic Surgery
Osteotomy
Overbite
Prognathism*
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