替牙期无托槽隐形矫治器扩弓治疗改良设计的有限元分析

吕秦毅, 高子琦, 冯青辰, 梅宏翔, 李娟

Optimizing arch expansion with clear aligners in the mixed dentition based on finite element analysis

LÜ Qinyi, GAO Ziqi, FENG Qingchen, MEI Hongxiang, LI Juan

表2 材料及组织力学性能参数

Tab 2 Mechanical properties of materials and tissues

Component Young's modulus/MPa Poisson ratio Tooth 1.96×104 0.30 Periodontal ligament 0.68 0.45 Cortical bone 1.37×104 0.30 Cancellous bone 1.37×103 0.30 Clear aligner 528 0.36 Attachment 1.25×104 0.36