title: Two ways to correct bird-face deformity.
abstract: Two different ways of correcting micromandibularism inherent in the bird-face deformity have been described. Both procedures may be applied to correct the symmetric or the asymmetric types of bird-face deformity. Both have the elongation in the front area by means of one- or two-step advancement genioplasty in common. The difference between the two procedures lies mainly in the way the elongation of the mandibular body is achieved. Procedure 2 advocates the elongation of the mandible by means of vertical osteotomy within the tooth-bearing area, and procedure 1 advocates the elongation of the mandible behind the tooth-bearing area by means of the extended sagittal split osteotomy. Both procedures are demonstrated by drawings and by cases of patients who have been operated on.
mesh_terms: D002680:Chin / Q000601:surgery; D005146:Facial Asymmetry / Q000601:surgery; D005260:Female; D006801:Humans; D008297:Male; D008334:Mandible / Q000002:abnormalities* / Q000601:surgery; D008844:Micrognathism / Q000601:surgery*; D010027:Osteotomy / Q000379:methods*; D063173:Retrognathia / Q000601:surgery*; D013518:Surgery, Plastic