Singh Parul, Bansal Chinki, Kaushik Gunjan, Shrivas Utkarsh, Singh Kuldip, Kumar Ramesh
Department of Orthodontics and Dentofacial Orthopaedics, Maharana Pratap College of Dentistry & Research Centre, Gwalior, Madhya Pradesh, India.
Private Consultant Orthodontist, US Dental Clinic, Chhatarpur, Madhya Pradesh, India.
Bioinformation. 2025 Feb 28;21(2):220-224. doi: 10.6026/973206300210220. eCollection 2025.
The stress distribution in the periodontium during maxillary canine retraction between the forces applied at canine orthodontic bracket and at power arm using 3D finite element analysis (FEA). 3D FEA for power arm, archwire, orthodontic bracket and periodontium was built independently using the ANSYS software. Maximum stress areas in periodontium was after 150 gm force application at power arm soldered to canine bracket at 13 mm and minimum stress area in periodontium was with force application at canine bracket hook. Maximum principle stress (tension side) and minimum principle stress (compression side) observed in the periodontium at power arm soldered to canine bracket at 9mm and minimum at canine bracket hook.
使用三维有限元分析（FEA）研究在上颌尖牙正畸托槽和力臂施加力时牙周组织中的应力分布。使用ANSYS软件分别建立力臂、弓丝、正畸托槽和牙周组织的三维有限元模型。当在距尖牙托槽13毫米处将力臂焊接至尖牙托槽并施加150克力时，牙周组织中的最大应力区域出现；而在尖牙托槽钩处施加力时，牙周组织中的最小应力区域出现。当在距尖牙托槽9毫米处将力臂焊接至尖牙托槽时，牙周组织中观察到最大主应力（张力侧）和最小主应力（压缩侧），而在尖牙托槽钩处最小。
