目的：研究咬合平衡与否对种植全口义齿应力状况的影响。
AIM: To investigate the stress status of mandibular complete dentures supported by implants with various balanced or unbalanced occlusion.
目的观察上颌总义齿基托中线区在咬合平衡及非平衡时的应变变化规律。
Objective To investigate the strain distribution along the middle line on base plate of maxillary complete denture under balanced and unbalanced occlusion.
种植全口覆盖义齿侧方和前伸咬合平衡者均较不平衡者骨界面应力明显降低。
To the osseointegrated implant-supported overdenture, its stresses in protrusive and lateral balanced occlusions were lower than those in their unbalanced ones.
正颌手术通过打破原有的颌骨系统，重建咬合平衡来达到改善面型和咀嚼功能的目的。
Orthognathic surgery breaks the primary jaw system and rebuilds the balance of occlusion to improve the mastication and feature.
方法：建立种植全口固定义齿和种植全口覆盖义齿的三维有限元模型，然后进行侧方咬合平衡与不平衡、前伸咬合平衡与不平衡模拟加载分析。
METHODS: A 3-D finite element model of mandibular complete dentures supported by implants was established to analyze the stress status with protrusive or lateral occlusions.
方法：建立种植全口固定义齿和种植全口覆盖义齿的三维有限元模型，然后进行侧方咬合平衡与不平衡、前伸咬合平衡与不平衡模拟加载分析。
METHODS: A 3-D finite element model of mandibular complete dentures supported by implants was established to analyze the stress status with protrusive or lateral occlusions.
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