本文選題：三維有限元　切入點：舌側內收力系　出處：《第三軍醫(yī)大學學報》2014年05期

【摘要】：目的基于CT法建立上頜前牙舌側差動內收力系的三維有限元模型,對這一復雜正畸矯治力系的生物力學效應進行系統(tǒng)性分析。方法通過高精度螺旋CT掃描獲得精確的組牙和頜骨圖像信息,運用MIMICS軟件進行三維重建,同時在Solidworks中建立舌側托槽與弓絲的三維幾何模型,并進行裝配,導入ANSYS軟件劃分網格生成上頜前牙舌側差動內收力系的三維有限元模型。最后對模型進行加載檢測。結果建立了細致、逼真的上頜前牙舌側差動內收的三維有限元模型,在0.015 N·m的力矩和56.6 g的Ⅱ類牽引力作用下上頜前牙牙周膜應力-應變在生理性范圍之內。結論本研究建立的上頜前牙舌側差動內收力系三維有限元生物力學模型保證了高度的幾何相似性和力學相似性,可用于這一復雜正畸矯治力系生物力學效應的系統(tǒng)研究。
[Abstract]:Objective to establish a three-dimensional finite element model of differential adductive force in the lingual side of maxillary anterior teeth based on CT. The biomechanical effects of this complex orthodontic force system were systematically analyzed. Methods accurate images of teeth and jaws were obtained by high-precision spiral CT scanning and 3D reconstruction was performed with MIMICS software. At the same time, the 3D geometric model of tongue bracket and arch wire was established in Solidworks and assembled. Three dimensional finite element model of differential adduction system of maxillary anterior teeth was generated by introducing ANSYS software. Finally, the model was tested by loading. Results A detailed and realistic 3D finite element model of differential adduction of maxillary anterior teeth was established. Under the action of 0.015 N m torque and 56.6 g class 鈪，

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