Clinical Study of Orthognathic Surgery for the Treatment of Dentofacial Deformities

Objective To evaluate orthognathic surgeies for the treatment of detofacial deformities. Methods The medical records of 600 cases with dentofacial deformities were summed up and analysed from aspects of an operation and postoperative effects. Results The 600 cases with dentofacial deformities were corrected by the orthognathic surgery,of which 212 with maxillary retrusion and mandibular prognathism were treated by Le Fort I osteotomy and mandibular body osteotomy, 56 with maxillary retrusion by Le Fort I osteotomy;30 with mandibular prognathism by sagittal split ramus osteotomy(SSRO) , 145 with mandibular prognathism by mandibular body osteotomy; 112 with maxillary and mandibular prognathism or with maxillary prognathism by Downfracture or Wassmund; 45 with mandibular prognathism and asymmetry by mandibular body osteotomy. The complications were relaps, postoperative infection and permanent sensory losses. Conclusion The long-term results showed that Le Fort I osteotomy and SSRO for the correction of dentofacial deformities effective methods methods.