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Modeling and Experimentation of the Unidirectional Orthodontic Force of Second Sequential Loop Orthodontic Archwire.
Applied Bionics and Biomechanics ( IF 2.2 ) Pub Date : 2020-06-11 , DOI: 10.1155/2020/5786593
Jin-Gang Jiang 1, 2 , Yi-Hao Chen 1, 2 , Lei Wang 1, 2 , Yong-De Zhang 1, 2 , Yi Liu 3 , Wei Qian 1, 2
Affiliation  

The abnormal tooth arrangement is one of the most common clinical features of malocclusion which is mainly caused by the tooth root compression malformation. The second sequential loop is mostly used for the adjusting of the abnormal tooth arrangement. Now, the shape devise of orthodontic archwire depends completely on the doctor’s experience and patients’ feedback, this practice is time-consuming, and the treatment effect is unstable. The orthodontic-force of the different parameters of the second sequence loop, including different cross-sectional parameters, material parameters, and characteristic parameters, was compared and simulated for the abnormal condition of root compression deformity. In this paper, the analysis and experimental study on the unidirectional orthodontic-force were carried out. The different parameters of the second sequential loop are analyzed, and the equivalent beam deflection theory is used to analyze the relationship between orthodontic-force and archwire parameters. Based on the structural analysis of the second sequential loop, the device for measuring orthodontic force has been designed. The orthodontic force with different structural characteristics of archwire was compared and was measured. Finally, the correction factor was developed in the unidirectional orthodontic-force forecasting model to eliminate the influence of inherent error. The average relative error rate of the theoretical results of the unidirectional orthodontic-force forecasting model is between 12.6% and 8.75%, which verifies the accuracy of the prediction model.

中文翻译:

第二顺序环正畸弓丝单向正畸力的建模与实验。

牙齿排列异常是咬合不正的最常见临床特征之一,主要由牙根受压畸形引起。第二顺序回路主要用于调整异常牙齿的排列。现在,正畸弓丝的形状设计完全取决于医生的经验和患者的反馈,这种做法既费时,又治疗效果不稳定。比较并模拟了第二顺序环不同参数(包括不同的横截面参数,材料参数和特征参数)的正畸力,以了解根部压缩畸形的异常情况。本文对单向正畸力进行了分析和实验研究。分析了第二顺序环的不同参数,并使用等效束偏转理论分析了正畸力与弓丝参数之间的关系。基于第二顺序环的结构分析,设计了用于测量正畸力的装置。比较并测量了不同弓丝结构特征的正畸力。最后,在单向正畸力预测模型中开发了校正因子,以消除固有误差的影响。单向正畸力预测模型理论结果的平均相对误差率在12.6%和8.75%之间,验证了预测模型的准确性。并利用等效梁挠度理论分析了正畸力与弓丝参数之间的关系。基于第二顺序环的结构分析,设计了用于测量正畸力的装置。比较并测量了不同弓丝结构特征的正畸力。最后,在单向正畸力预测模型中开发了校正因子,以消除固有误差的影响。单向正畸力预测模型理论结果的平均相对误差率在12.6%和8.75%之间,验证了预测模型的准确性。并利用等效梁挠度理论分析了正畸力与弓丝参数之间的关系。基于第二顺序环的结构分析,设计了用于测量正畸力的装置。比较和测量了具有不同弓丝结构特征的正畸力。最后,在单向正畸力预测模型中开发了校正因子,以消除固有误差的影响。单向正畸力预测模型理论结果的平均相对误差率在12.6%和8.75%之间,验证了预测模型的准确性。设计了用于测量正畸力的装置。比较和测量了具有不同弓丝结构特征的正畸力。最后,在单向正畸力预测模型中开发了校正因子,以消除固有误差的影响。单向正畸力预测模型理论结果的平均相对误差率在12.6%和8.75%之间,验证了预测模型的准确性。设计了用于测量正畸力的装置。比较和测量了具有不同弓丝结构特征的正畸力。最后,在单向正畸力预测模型中开发了校正因子,以消除固有误差的影响。单向正畸力预测模型理论结果的平均相对误差率在12.6%和8.75%之间,验证了预测模型的准确性。
更新日期:2020-06-11
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