Stochastic Multi-scale Finite Element Analysis of the Drilling Force of Trabecular Bone during Oral Implant Surgery
Stochastic Multi-scale Finite Element Analysis of the Drilling Force of Trabecular Bone during Oral Implant Surgery
复制标题
口腔种植手术中骨小梁钻孔力的随机多尺度有限元分析
DOI：
10.1142/s1758825116500757
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发表时间：
2016
影响因子：
3.5
通讯作者：
Satoru Matsunaga and Shinichi Abe
中科院分区：
文献类型：
--
作者：
Daisuke Tawara;Naoki Takano;Hideaki Kinoshita;Satoru Matsunaga and Shinichi Abe
为了避免在颌骨中的口腔植入手术期间/之后的手术事故（例如，由于钻孔角度不足或刮伤下颌管导致舌侧穿孔），牙医必须掌握熟练的钻孔技术。我们已经开发了一个随机多尺度预测的表观弹性模量的颌骨与修改后的一阶扰动为基础的随机均匀化，其中个体差异的钻孔性能有关的骨质量可以评估与力敏感设备。为了建立在各种类型的颌骨和穿孔的情况下，钻直径的钻孔性能，我们提出了一种原始的计算方法，通过定义钻孔角度作为参数和量化的个体差异和内部分布的骨质量在几个颌骨作为钻孔力，以避免手术事故。三个样本表明，钻孔力的变化取决于骨小梁结构，钻孔力在下颌管周围变化不大，在穿孔前增加。钻孔力也取决于钻头直径，但并不总是与其尺寸匹配。预期值和50%、90%概率结果的估计钻削力表明，钻削性能存在显著差异。这些信息使牙医能够发展熟练的外科技术。
To avoid procedural accidents during/after oral implant surgery in a jawbone (e.g., perforation of the lingual side due to an inadequate drilling angle or scratching the mandibular canal), it is important for dentists to develop skilled drilling techniques. We have developed a stochastic multi-scale prediction of apparent elastic moduli of the jawbone with modified first-order perturbation-based stochastic homogenization in which individual differences of drilling properties relating to bone quality can be evaluated with a force-sensitive device. To establish drilling properties in various types of jawbone and the perforation case, and for drill diameters, we propose an original computational method that avoids procedural accidents by defining the drilling angle as a parameter and quantifying individual differences and the inner distribution of bone quality in several jawbones as a drilling force. Three samples demonstrated that drilling forces changed depending on the trabecular structure, with the drilling force changing little around the mandibular canal and increasing just before perforation. Drilling force also depended on the drill diameter but did not always match its size. Estimated drilling forces of the expected value and 50% and 90% probability results suggested prominent differences in drilling properties. This information enables dentists to develop a skillful surgical technique.