Study on bone resorption mechanism by measuring the stress/strain distributions of mandibular bone around an immediate-loaded implant

从材料强度的角度探讨种植体植入后骨吸收的原因。实现了下颌骨模型在种植体周围应变分布的可视化，并对模拟牙合条件下的应变分布进行了定量评价。即刻加载种植体的下颌骨力学环境较骨整合种植体更为严重。结果表明，当牙合力过载时，即刻加载种植比传统的骨整合种植更容易受到骨吸收的影响，而即刻加载种植可缩短治疗周期。

Investigation into the cause of bone resorption after dental implant placement was attempted from the viewpoint of strength of material. Visualization of the strain distributions of mandibular bone model around a dental implant was realized, and quantitative evaluation of the strain distributions under simulated dental occlusion was conducted. Mechanical circumstances of mandibular bone in immediate-loading implantology were more severe than the ones in osseointegration implantol-ogy. The results suggest that immediate-loading implantology which is recently noticed for shortening the treatment period is subjected to bone resorption compared to osseointegration implantology which is the traditional implant method if the dental occlusion force is overloaded.