Computational simulation of internal bone remodelling around dental implants: a sensitivity analysis
Computational simulation of internal bone remodelling around dental implants: a sensitivity analysis
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DOI：
10.1080/10255842.2011.561793
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发表时间：
2012-08
影响因子：
1.6
通讯作者：
I. Hasan;A. Rahimi;L. Keilig;K. Brinkmann;C. Bourauel
中科院分区：
文献类型：
--
作者：
I. Hasan;A. Rahimi;L. Keilig;K. Brinkmann;C. Bourauel
本研究的目的是预测骨小梁的分布，作为每单位时间的密度变化，周围的牙种植体应用选定的数学模型的基础上。表观骨密度的变化作为一个功能的机械刺激的基础上应用的重塑模型，描述废用和过载骨吸收。在理想骨段中的螺旋形牙种植体的有限元模型中测试模拟。研究了模拟对不同机械参数的敏感性;这些参数包括元素边长、边界条件以及植入物载荷的方向和大小。力学参数的改变对密度分布和模型稳定性有显著影响，特别是在皮质骨区域。骨改建模型可以成功地实现骨结合牙种植体周围的小梁样结构。该模型的验证，一个真实的临床病例是必要的。
This study aimed to predict the distribution of bone trabeculae, as a density change per unit time, around a dental implant based on applying a selected mathematical remodelling model. The apparent bone density change as a function of the mechanical stimulus was the base of the applied remodelling model that describes disuse and overload bone resorption. The simulation was tested in a finite element model of a screw-shaped dental implant in an idealised bone segment. The sensitivity of the simulation to different mechanical parameters was investigated; these included element edge length, boundary conditions, as well as direction and magnitude of the implant loads. The alteration in the mechanical parameters had a significant influence on density distribution and model stability, in particular at the cortical bone region. The remodelling model could succeed to achieve trabeculae-like structure around osseointegrated dental implants. The validation of this model to a real clinical case is required.