Özet:

Aim: The aim of this case report was to present the orthognathic treatment of a patient with Class III malocclusion and severe asymmetry. Subject and Method: The chief complaint of the 18-year old male was asymmetry. Clinically, he had maxillary retrognathism and severe facial asymmetry with the chin deviated to the left side. He also had a Class III molar and canine relationship. Cephalometric evaluation showed that the patient had maxillary retrusion and slight mandibular protrusion. The mandibular incisors were lingually and the maxillary incisors were labially inclined. Posteroanterior cephalometric analysis showed 2 mm maxillary and 5 mm mandibular midline deviation to the left side. The chin was deviated to the left side about 13°. After correction of the arch forms by fixed orthodontic treatment over seven months, surgical correction with bimaxillary osteotomy was undertaken. Results: A Class I occlusion with normal overbite and overjet was achieved in 17 months. The maxillary retrusion, mandibular protrusion and asymmetry were corrected. Conclusion: Combined orthodontic and orthognathic treatment resulted in a Class I occlusion and esthetically pleasing results.

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