Effect of immediately and delayed loading on peri-implant bone

采用有限元方法分析初始加载时间对种植体周围骨应力分布的影响。低密度松质骨模型在早期加载下的应力值大于常规加载下的应力值。这些研究结果表明，在低密度松质骨中植入早期负荷可能导致骨吸收。在动物实验中，观察到种植体周围因负荷过大而发生骨吸收。

Effects of initial loading time on stress distribution in bone around dental implant were assessed by finite element analysis. The stress values in the low-density cancellous bone models under early loading were greater than those under conventional loading. These findings suggest that implant placement at low-density cancellous bone under early loading could result in bone resorption due to an overload. In the animal experiment, peri-implant bone resorption due to an overload was observed.