Objective To explore the application of the midget electro-saw in maxillary bone operations.

目的探讨微型电锯在上颌骨手术中的应用。

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To explore the characteristic of old fractures in maxillary bone and clinical effect of rigid internal fixation for it with mini ti plate.

探讨上颌骨陈旧性骨折的特点及其整复后应用微型金属钛板行坚固内固定的临床疗效。

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Results: Most of the lacrimal fossa (85. 60%) consist of lacrimal and maxillary bones; 0nly a few (14.40%) lacrimal bone or maxillary bone.

结果：泪囊窝多数(85.60%)由泪骨与上颌骨构成，少数(14.40%)由泪骨或上颌骨构成。

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