FRACTURE ANALYSIS OF SKELETAL REMOVABLE PARTIAL DENTURES - EQUATION WITH SEVERAL UNKNOWNS

IF 0.6

Archiv EuroMedica Pub Date : 2023-08-23 DOI:10.35630/2023/13/4.825

M. Antohe, C. Dascălu, D. Forna, E. Hitruc, N. Cimpoesu, C. Iordache, N. Forna

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引用次数: 0

Abstract

Aim: The aim of the study is to identify the causes of fractures of partially mobile skeletal prostheses, to determine the technological register or the design aspects of the prosthetic solution according to the particularity of the clinical case. Methods: A total of 56 fractured, partially removable skeletal prostheses were analyzed by AFM (Atomic Force Microscopy) between 2019 and 2023 to determine the structural changes in the fractured area compared to the other areas of the prosthesis. The surface images were obtained with a Solver PRO-M scanning probe microscope (NT-MDT), in AFM configuration. Results: According to the results in the literature by comparing the fatigue limit on different criteria it was revealed that the surface roughness was a significant factor in the material performance and with a high influence on the fatigue strength of the specimen. The surface roughness in the fracture zone, is much higher than the surfaces in the areas that resisted external stresses. Conclusions: Usually, the failure of a metal material in operation is due to a combination of factors, which are found in the technological register or may be generated by the particularities of the clinical case that have not been taken into account.

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骨骼可摘局部义齿骨折分析-几个未知数方程

目的：本研究的目的是确定部分可移动骨骼假体骨折的原因，并根据临床病例的特殊性确定假体解决方案的技术注册或设计方面。方法：在2019年至2023年间，通过AFM（原子力显微镜）分析了总共56个骨折的、可部分移除的骨骼假体，以确定与假体其他区域相比，骨折区域的结构变化。表面图像是用Solver PRO-M扫描探针显微镜（NT-MDT）在AFM配置中获得的。结果：根据文献中的结果，通过比较不同标准下的疲劳极限，发现表面粗糙度是影响材料性能的重要因素，对试样的疲劳强度有很大影响。断裂带的表面粗糙度远高于承受外部应力区域的表面。结论：通常，金属材料在手术中的失败是由多种因素造成的，这些因素可以在技术登记中找到，也可能是由于临床病例的特殊性而产生的，而这些因素没有被考虑在内。

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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来源期刊

Archiv EuroMedica MEDICINE, GENERAL & INTERNAL-

自引率

83.30%

发文量

140