Mandibular Prognatizmin Tedavisinde Le Fort I Osteotomisi ve Bilateral Sagittal Bölünmüş Osteotomi: Olgu Sunumu

Yardimci E., Kamiş S. E., Çiftçi S.

Ağız ve Çene Yüz Cerrahisi Birliği Derneği, Antalya, Türkiye, 8 - 12 Nisan 2026, ss.499, (Özet Bildiri)

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: Antalya
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.499
  • İnönü Üniversitesi Adresli: Evet

Özet

Giriş: İskelet Sınıf III maloklüzyon mandibulanın aşırı büyümesi ve/veya çene yetersiz büyümesi ile ilişkilidir. Ortodontik cihazlarla erken aşamada tedavi edilen vakalarda, yetişkinlikte ele alınmazsa, ortogonatik cerrahi kaçınılmaz hale gelir. Bu makale, iskelet Sınıf III maloklüzyona sahip yetişkin bir hastanın ortogonatik cerrahisini sunmaktadır.

Anahtar kelimeler: İskelet Sınıf III maloklüzyo, Çene Alt Pozisyon Değişikliği, Ortogonatik Cerrahi


Introduction: : Skeletal Class III malocclusion is associated with excessive growth of the mandible and/or insufficient growth of the maxilla. In cases treated with orthodontic appliances at an early stage, if not addressed by adulthood, orthognathic surgery becomes inevitable. This paper presents the orthognathic surgery of an adult patient with skeletal Class III malocclusion

Case: A 21-year-old systemically healthy female patient presented to our clinic with an aesthetic complaint related to a prominent lower jaw. Clinical examination revealed a concave facial profile, Class III canine and molar relationships, and mandibular prognathism. The patient underwent fixed orthodontic treatment in the orthodontics department, including leveling, alignment, and decompensation, to prepare for orthognathic surgery.

Initially, a Le Fort I osteotomy was performed to mobilize the maxilla. The maxilla was repositioned with 4 mm impaction and 2 mm advancement and subsequently stabilized using miniplates. A bilateral sagittal split ramus osteotomy (BSSO) was then performed on the mandible, with careful preservation of the continuity of the inferior alveolar nerve. The mandible was set back by 4 mm and fixed with miniplates. No intraoperative or postoperative complications were encountered.

Conclusion: Improving function and occlusion, as well as the mechanics of the temporomandibular joint, are fundamental concepts for success in orthognathic surgical applications. Coordination between the surgeon and orthodontist, along with the patient’s active involvement in the team effort, can make postoperative expectations more realistic.

Keywords: Skeletal Class III malocclusion, Maxillary Inferior Repositioning, orthognathic surgery