Reconstruction of severely atrophied jaw by orthognathic surgery and interpositional bone augmentation

Abstract

Abstract: PURPOSE: To evaluate the clinical effectiveness of rehabilitation of severely atrophied jaw by orthognathic surgery and interpostional bone augmentation. METHODS: We conducted a retrospective review of 12 patients who had received orthognathic surgery and interpostional bone augmentation (maxilla: Le Fort I osteotomy + maxillary sinus elevation + onlay; mandible: interposition + onlay). The study group included 5 males and 7 females, aged 59 to 77 years (mean, 67.9 years). Four to six months after jaw reconstruction, one hundred and twenty-two implants were embedded. After another 4-6 months, the implants prostheses were successfully made. The survival of the dental implants and the final prosthesis were evaluated by clinical and radiographic examinations. RESULTS: Except for 2 lost implants, the other fixtures functioned successfully after 30-61 months of follow-up. Cumulative survival and success rates of all fixtures were 98.36%. The patients' profile and masticatory efficiency were significantly improved after implant prosthesis. SPSS 13.0 software package was used for statistical analysis. CONCLUSIONS: Orthognathic surgery and interpostional bone augmentation are promising methods to rehabilitate the facial contour and dental function in those patients with extremely atrophied jaw. Due to limited follow-up peroid, the long-term results need to be investigated.

Key words: Orthognathic surgery, Interpostional bone augmentation, Severely atrophied jaw, Jaw reconstruction, Dental implants prosthesis

CLC Number:

R782.12

ZHOU Miao, Hendrik Terheyden, PIAO Zheng-guo. Reconstruction of severely atrophied jaw by orthognathic surgery and interpositional bone augmentation[J]. China Journal of Oral and Maxillofacial Surgery, 2015, 13(2): 140-146.

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