Yang Sensen, Cheng Yumin
Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai Institute of Applied Mathematics and Mechanics, School of Mechanics and Engineering Science, Shanghai University, Shanghai 200072, China.
Smartee Biomechanics Research Laboratory, Shanghai Smartee Denti-Technology, Shanghai 201210, China.
Bioengineering (Basel). 2025 Jan 24;12(2):110. doi: 10.3390/bioengineering12020110.
A simplified mechanics model of aligner-tooth interaction was developed to establish a precise computational method for overcorrection design in clear aligner orthodontics. Validated through finite element analysis and experiments, the results demonstrated that designing the movement of only the target teeth on the aligner leads to uneven force distribution on adjacent teeth, while an overcorrection design can evenly distribute the reaction force generated by pushing the target teeth to the anchorage teeth, reducing the maximum force on the anchorage teeth, minimizing unplanned tooth movement, and improving the efficacy of the designed tooth movement for all teeth.
建立了一种简化的矫治器与牙齿相互作用力学模型，以确立一种用于透明矫治器正畸中过度矫正设计的精确计算方法。通过有限元分析和实验验证，结果表明，仅设计矫治器上目标牙齿的移动会导致相邻牙齿上的力分布不均，而过度矫正设计可将推目标牙齿向支抗牙齿产生的反作用力均匀分布，降低支抗牙齿上的最大力，减少意外的牙齿移动，并提高所有牙齿设计牙齿移动的效果。
