The Precise Midline Positioning Instrument for Le Fort I Osteotomy

To reduce the deviations in the horizontal direction of posterior maxilla during the maxilla Le Fort I osteotomy, the authors develop and validate the precise midline positioning instrument for Le Fort I osteotomy, which can guide the precise relocation of the truncated maxillary bone segment. The patent application for the precise midline positioning instrument for Le Fort I osteotomy is already submitted (patent no: 201711245533.6, China). The accuracy of Le Fort I osteotomy can be improved significantly, because of the amplification effect of this patent on the rotation/micro-movement of the posterior maxilla in all directions to achieve the precise movement and pairing of the maxillary bone segment. And this method is simple, efficient, and laborsaving. Address correspondence and reprint requests to Dr Guomin Wu, PhD, School and Hospital of Stomatology, Jilin University, No 1500 Qinghua Road, Changchun, 130021 Jilin, China; E-mail: guominwu2006@sina.com Received 17 May, 2018 Accepted 24 July, 2018 This study was supported by grants from the Committee of National Nature Science Foundation (no: 81400532) in China, Horizontal joint project of Jilin Province (no: 3R215AX33431), the Graduate Innovation Fund of Jilin University (no: 2017064), Norman Bethune Program of Jilin University (no: 2015301), Fund Project of Jilin Health and Family Planning Commission (no: 2015Q017), Jilin University's Outstanding Young Teacher Training Program (no: 419080500367), the Program for Fundamental Research of Jilin University (no: 450060491134), and the 13th Five-Year Science and Technology Project of the Education Department of Jilin Province (no: 2016486). The authors report no conflicts of interest. © 2018 by Mutaz B. Habal, MD.

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