不同几何形状种植体力学行为的研究

Zhongxia Yuan, P. L. Chong, Sandipan Roy, A. Merdji, Abdelhak Ouldyerou, F. Faraji, L. K. Moey, Mohammad Hossein Yazdi, O. Mukdadi
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引用次数: 0

摘要

植牙已经受到了很多关注,并已被用于治疗缺牙和坏牙等症状。由于患者的职业和年龄不同,植入物的功能和目的也不同。牙种植体的形状有很多种。然而,随着种植牙的普及,种植牙的形状给人们的眼睛带来了一些问题。事实上,有些植入物使用不当。这使得种植体周围的应力分布不合理;它不仅影响周围的骨吸收,而且会引起种植体的机械性骨折。本研究旨在评估五种不同种植体系统的力学特性。应用有限元等工程研究系统,对5种种植体及其周围骨组织在90N垂直载荷下进行建模和模拟。获得骨内应力和变形的分布并进行统计评分,用于判断种植体的最佳几何形状。分析结果表明,圆柱形种植体是所有种植体中最理想的形状。
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Investigation of Mechanical Behaviors of Dental Implants with Different Geometries
Dental implants have received a lot of attention and have been used to treat symptoms like missing teeth and bad teeth. Due to the wide range of occupations and ages of patients, the functions and aims of implants are different. There are many kinds of dental implant shapes. However, with the popularity of dental implants, some problems caused by the dental implant shape have appeared in people's eyes. In fact, some implants were used incorrectly. This makes the stress distribution around the implant unreasonable; it not only affects the surrounding bone resorption but also causes mechanical fracture of the implant. This work aims to evaluate the mechanical features of five different kinds of dental implant systems. By applying engineering systems of investigations like FEM, five types of dental implants and surrounding bone tissue were modeled and simulated under vertical loads of 90N. Distributions of stresses and deformations in the bone were obtained and ranked into statistical scores, which were used to judge the optimum geometry of implants. Analytical results showed that the cylindrical implant, is the most optimum shape among other types of implants.
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