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采用舌侧技术建模和模拟的正畸系统以评估牙齿受力情况。

Orthodontic System Modeled and Simulated with the Lingual Technique to Assess Tooth Forces.

作者信息

Hazem Abbas, Mărășescu Felicia Ileana, Țuculină Mihaela Jana, Popescu Alexandru Dan, Popa Dragoș Laurențiu, Mihai Lelia Laurența, Cumpătă Cristian Niky, Iliescu Alexandru, Mărășescu Petre, Dascălu Ionela Teodora

机构信息

Department of Orthodontics, Faculty of Dental Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania.

Department of Endodontics, Faculty of Dental Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania.

出版信息

Diagnostics (Basel). 2024 May 31;14(11):1171. doi: 10.3390/diagnostics14111171.

DOI:10.3390/diagnostics14111171
PMID:38893697
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11172380/
Abstract

CBCT (cone beam computed tomography) is an imaging investigation that provides three-dimensional (3D) images of craniofacial structures. The purpose of this study is to determine the mechanical behavior of an orthodontic system where the lingual treatment technique was used in a 25-year-old female patient from whom a set of CBCT scans was used. CBCT images were processed through software programs such as Invesalius, Geomagic, and Solid Works, to create models containing virtual solids. These models were then imported into Ansys Workbench 2019 R3 (a finite element method software program) for successive simulations to generate displacement maps, deformations, stress distributions, and diagrams. We observed that in the lingual technique, the lowest force occurring on the maxillary teeth is at 1.1, while the highest force appears at 2.3. In the mandible, the lowest force occurs at 4.6, and the highest force at 3.1. The values of the forces and the results of the finite element method can represent a basis for the innovation of new orthodontic springs and also of bracket elements. Thus, by using new technologies, orthodontic practice can be significantly improved for the benefit of patients. Other virtual methods and techniques can be used in future studies, including the application of virtual reality for orthodontic diagnosis.

摘要

锥形束计算机断层扫描（CBCT）是一种成像检查方法，可提供颅面结构的三维（3D）图像。本研究的目的是确定在一名25岁女性患者中使用舌侧治疗技术的正畸系统的力学行为，该患者提供了一组CBCT扫描图像。CBCT图像通过Invesalius、Geomagic和Solid Works等软件程序进行处理，以创建包含虚拟实体的模型。然后将这些模型导入Ansys Workbench 2019 R3（一种有限元方法软件程序）进行连续模拟，以生成位移图、变形、应力分布和图表。我们观察到，在舌侧技术中，上颌牙齿上出现的最小力为1.1，而最大力出现在2.3。在下颌骨中，最小力出现在4.6，最大力出现在3.1。力的值和有限元方法的结果可为新型正畸弹簧和托槽元件的创新提供依据。因此，通过使用新技术，可以显著改善正畸治疗，造福患者。未来的研究可以使用其他虚拟方法和技术，包括将虚拟现实应用于正畸诊断。

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