Objective To establish the three-finite element models of the mandible before and after Sagittal split ramus osteotomy(SSRO).

目的建立下颌支矢状劈开后退术前后的下颌骨三维有限元模型。

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Objective:To correct mandibular prognathism with the technique of sagittal split ramus osteotomy(SSRO) and extraoral vertical ramus osteotomy(EVRO).

目的：应用粗裂钻和薄刃锐利骨凿施下颌骨升支垂直截骨术和矢状劈开截骨术治疗下颌骨前突畸形。

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Objective To evaluate the neurosensory functions of the inferior alveolar nerve(IAN)after two rigid internal fixations for the sagittal split of ramus osteotomy(SSRO)in monkeys.

目的研究下颌支矢状劈开术（SSRO）常用两种内固定方式对下齿槽神经（IAN）功能的影响。

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