一种具有微动能力的新型牙种植体基台——研发与生物力学评估。
A novel dental implant abutment with micro-motion capability--development and biomechanical evaluations.
作者信息
Chen Yen-Yin, Chen Weng-Pin, Chang Hao-Hueng, Huang Shih-Hao, Lin Chun-Pin
机构信息
Department of Mechanical Engineering, National Taipei University of Technology, No. 1, Sec. 3 Chung-Hsiao E. Rd., Da-an District, Taipei City 106, Taiwan, ROC.
Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, No. 1, Chang-De St., Jhong-Jheng District, Taipei City 100, Taiwan, ROC; National Taiwan University Hospital, National Taiwan University, No. 1, Chang-De St., Taipei City 100, Taiwan, ROC.
出版信息
Dent Mater. 2014 Feb;30(2):131-7. doi: 10.1016/j.dental.2013.10.007. Epub 2013 Nov 14.
OBJECTIVE
The aim of this study was to develop a novel dental implant abutment with a micro-motion mechanism that imitates the biomechanical behavior of the periodontal ligament, with the goal of increasing the long-term survival rate of dental implants.
METHODS
Computer-aided design software was used to design a novel dental implant abutment with an internal resilient component with a micro-motion capability. The feasibility of the novel system was investigated via finite element analysis. Then, a prototype of the novel dental implant abutment was fabricated, and the mechanical behavior was evaluated.
RESULTS
The results of the mechanical tests and finite element analysis confirmed that the novel dental implant abutment possessed the anticipated micro-motion capability. Furthermore, the nonlinear force-displacement behavior apparent in this micro-motion mechanism imitated the movement of a human tooth. The slope of the force-displacement curve of the novel abutment was approximately 38.5 N/mm before the 0.02-mm displacement and approximately 430 N/mm after the 0.03-mm displacement.
SIGNIFICANCE
The novel dental implant abutment with a micro-motion mechanism actually imitated the biomechanical behavior of a natural tooth and provided resilient function, sealing, a non-separation mechanism, and ease-of-use.
目的
本研究的目的是开发一种具有微动机制的新型牙种植体基台，该机制模仿牙周韧带的生物力学行为，以提高牙种植体的长期存活率。
方法
使用计算机辅助设计软件设计一种具有微动能力的内部弹性部件的新型牙种植体基台。通过有限元分析研究了该新型系统的可行性。然后，制造了新型牙种植体基台的原型，并对其力学行为进行了评估。
结果
力学测试和有限元分析结果证实，新型牙种植体基台具有预期的微动能力。此外，这种微动机制中明显的非线性力-位移行为模仿了人类牙齿的运动。新型基台在0.02毫米位移前力-位移曲线的斜率约为38.5牛/毫米，在0.03毫米位移后约为430牛/毫米。
意义
具有微动机制的新型牙种植体基台实际上模仿了天然牙齿的生物力学行为，并提供了弹性功能、密封、防分离机制和易用性。
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