Author/Authors :
Mortazavi ، H نويسنده Dept. of Oral and Maxillofacial Surgery, Talegani Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran , , Tabrizi ، R نويسنده Dept. of Maxillofacial Surgery, Shiraz University of Medical Science, Shiraz, Iran , , Mohajerani ، H نويسنده Dept. of Oral and Maxillofacial Surgery, Shahid Beheshti University of Medical Sciences, Tehran, Iran , , Ozkan ، T نويسنده Dept. of Oral and Maxillofacial Surgery, Yuzinci Yil University, Van, Turkey ,
Abstract :
Statement of Problem: The main aim of advancement genioplasty is soft tissue and hard tissue stability which is important in improvement of the patientsʹ aesthetics.
Purpose: The evaluation of the soft and hard tissue stability in advancement genioplasty was the aim of this study.
Materials and Method: The subjects in this study were 15 patients who presented with retrognathia. All of the 15 patients underwent advancement genioplasty alone to correct retrognathia. The soft and hard tissue pogonion in pre-operation, immediately post-operation, and 18 months after operation in two groups of 9 patients with genial advancement less than 7mm (means 5.22mm) and 6 patients with genial advancement equal or greater than 7mm (means 7.16mm) were assessed.
Results: After operation, no patient had infection or dehiscence and bone instability. In group 1 with advancement less than 7mm, hard tissue pogonion relapse was 0.60±0.66mm and soft tissue pogonion relapse was 1.55±0.46mm. In group 2 with advancement equal or more than 7mm, hard tissue pogonion rela-pse of 1.6±0.46mm and soft tissue pogonion relapse of 1.8±0.68mm were observed.
Conclusion: Advancement genioplasty is a predictable operation specially when using rigid fixation. In this study, the result of operation in an 18 month period was stable.
