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颅颌面坚强内固定(三)下颌骨正中联合骨折的手术治疗及下颌骨宽度的控制性固定

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Author:
No author available
Journal Title:
Chinese Journal of Stomatology
Issue:
10
DOI:
10.3760/cma.j.issn.1002-0098.2013.10.010
Key Word:
No keyword available

Abstract´╝Ü 下颌骨正中联合骨折是指发生在下颌两尖牙之间正中联合区的骨折.胚胎发育正中联合区系由两侧下颌骨体联合而成,其位置突出,易遭受创伤而发生骨折;由于下颌骨正中联合区两侧颏结节和颏隆突解剖结构的存在,使下颌骨薄弱部位向两侧延伸,因此下颌骨正中联合骨折的骨折线经常自下颌切牙斜向两侧,常伴有牙槽突骨折;有时表现为矢状面骨折或斜行骨折;严重创伤可致下颌骨正中联合粉碎性骨折或多发骨折.

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