Vlerësimi i stresit të shfaqur në nofullën e sipërme nga vidat ortodontike nga çeliku dhe zirkoni

Amir Mamusha, Sevil Akkaya
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Abstract

This research aims to evaluate the pressure exerted on the upper jaw by steel and zirconium orthodontic screws using finite element analysis. Based on this, two working models were built in which the mechanical processing and dimen- sions of the orthodontic screws were not changed, and two orthodontic screws were placed from the biomaterial steel and zircon. In this study, a scenario of a case treated with extraction was selected, in which the first premolar was extracted, and the canine retraction was performed on continuous arches (steel 0.0016 x 0.0022) and with brackets of 0.0018’’ slot size. Orthodontic screws is placed between the second premolar and the first molar. A closed spring is suspended from the canine in the direction of or- thodontic screw, which applied a force of 1N. Referring to the achieved results, the value of the maximum principal stress (Pmax), in the cortical bone, was identified in or- thodontic screw made of steel, i.e., zirconium. While the value of the maximum principal stress (Pmax), in trabecu- lar bone, has been identified in steel and zirconium. Based on the conclusions of this research, zirconium may also be used for the production of orthodontic screws.
本研究旨在通过有限元分析评估钢锆正畸螺钉对上颌施加的压力。在此基础上,建立了两个不改变正畸螺钉机械加工和尺寸的工作模型,分别用生物材料钢和锆石放置两颗正畸螺钉。在本研究中,选择了一个拔牙治疗的病例,拔出第一前磨牙,在连续弓(钢0.0016 x 0.0022)和0.0018“槽大小的托槽上进行尖牙内收。正畸螺钉放置在第二前磨牙和第一磨牙之间。一个封闭的弹簧悬挂在牙髓螺钉或牙髓螺钉的方向上,施加1N的力。结合已取得的结果,确定了钢(即锆)制作的或-正畸螺钉在皮质骨中的最大主应力(Pmax)值。而最大主应力(Pmax)的值,在小梁骨,已确定在钢和锆。基于本研究的结论,锆也可用于正畸螺钉的制作。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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