上颌骨缺损是由上颌骨肿瘤或肿瘤术后及创伤，先天因素造成的。是口腔颌面缺损中最常见，发生率最高的缺损。上颌骨位于面中部，是整个颜面部外形的支撑结构，同时也是咀嚼器官，语言器官，呼吸器官的重要组成部分，上颌骨的缺损除直接引起患者颜面部的畸形外，还引起患者严重咀嚼，语言，吞咽功能障碍，从生理，心理两方面给患者造成严重影响。
两种整形美容技术在颌面外伤的应用效果分析 关键词]整形美容技术；上颌骨缺损；钛修复体；空义齿 [gap=1261]Key words:plastic surgical technique;maxilla defect;titanium bone substitute;no denture
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Maxillary defects are common maxillofacial diseases, the edentulous unilateral maxillary defect and the bilateral maxillary defect have great influence on patients’ life, it’s a challenge to rehabilitate these defects, using implants is the best way till now.
上颌骨缺损是临床常见的颌面部疾患，无牙颌一侧上颌骨缺损与全上颌骨缺失是其中对患者影响很大、修复难度也较大的类型，目前主要依靠种植体技术来修复。
参考来源 - 无牙上颌骨缺损种植修复优化设计的三维有限元分析·2,447,543篇论文数据，部分数据来源于NoteExpress
结果：颊脂垫修复腭部缺损、颊部缺损、上颌骨缺损效果满意。
Results: It is satisfactory to use the buccal fat pads to repair and re - establish the palate defects, maxillary defects, buccal defects and other dentofacial defects.
目的：探讨附着体应用于单侧上颌骨缺损修复的支架设计及制作方法。
Objectives: Discuss the framework design and fabrication of the application of attachment using for the restoration of unilateral maxillary defect.
结论：附着体应用于单侧上颌骨缺损修复，符合生物力学要求，未增加基牙的负荷。
CONCLUSIONS: the application of attachment for restoration of unilateral maxillary defect meets the biomechanical demands without increasing the stress load on the abutment.
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