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KMID : 0361919980280030479
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Korean Journal of Orthodontics
1998 Volume.28 No. 3 p.479 ~ p.486
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ORTHODONTIC TREATMENT OF CLASS Ⅲ BIMAXILLARY PROTRUSION COMBINED WITH SUBAPICAL SEGMENTAL OSTEOTOMY
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Abstract
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Bimaxiilary protrusion can be treated effectively in growing patients and in adults with conventional orthodontic therapy. However, In the adult patient, combined surgical and orthodontic treatment modalities may offer distinct advantages over such conventional therapy. In those cases complicate by vertical jaw dysplasia, sagittal dysplasia, or transverse skeletal discrepancy in addition to bimaxillary protrusion, the possibilities of obtaining successful results through orthodontic treatment alone greatly diminish.
Surgical retraction of both maxillary and mandibular anterior segments with subapical osteotomies and ostectomies in the extraction site may be a good treatment alternative. Treatment time and possible adverse effects of lengthy orthodontic therapy may be reduced and optimum esthetic improvement may be facilitated. On the following cases, patient who had bimaxillary protrusion with Angle class Ill malocclusion was treated with combined orthodontic - surgical therapy by anterior subapical segmental osteotomies.
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