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J Korean Assoc Oral Maxillofac Surg. 2005 Jun;31(3):255-259. Korean. Original Article.
Lee SH , Park IS , Lee CH , Kwon TG , Yun M , Deng F .
Department of Oral and Maxillofacial Surgery, School of Dentistry, Kyungpook National University, Korea.
Orthognathic Surgery Clinic, Department of OMFS, Kyungpook National University Hospital, Korea.
Department of Oral and Maxillofacial Surgery, Faculty of Stomatology, Hainan Medical University, China

We observed 469 cases (male 217 cases, female 252 cases) with dento-facial deformity for 10 years from Jan 1994 to Dec 2003. The ratio of male to female was 1:1.2 and the mean age was 23.3 years (male 24.0 years, female 22.6 years) ranged from 11 to 43 years.1) The most dominant group was related to mandibular prognathism (80.4%). A rate of 83.8% demonstrated mandibular protrusion according to Slavicek's classification (n=160), and 85.4% were classified as skeletal Class III type according to Sugawara's classification (n=151) Surgical method were divided into 355 cases of one jaw surgery (single method), 26 cases of one jaw surgery (combined method), and 77 cases of two jaw surgery. Sagittal split osteotomy were performed on 316 cases (69.0%). The average operation time and blood loss in SSRO were 4.1 +/- 2.2 hrs. and 138.8 +/- 222.6 ml (n=152)

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