Lauritano Floriana, Runci Michele, Cervino Gabriele, Fiorillo Luca, Bramanti Ennio, Cicciù Marco
Department of Biomedical Sciences, Dentistry and Morphological and Functional Imaging, University of Messina, Messina, Italy -
Minerva Stomatol. 2016 Dec;65(6):353-367. Epub 2016 Jun 30.
The aim of this paper is to underline the prosthodontics components features of two different overdenture retention systems on dental implants. The use of titanium, dental implants for replacing missing teeth is today considered to be a predictable procedure giving the patients esthetic and function for long time.
Finite element analysis (FEA) and tests based on the Von Mises criterion have been applied in order to evaluate the stress distribution over two different prosthodontics retention systems. Two models with the ball attachment and with the Locator® systems have been created and put on simulated chewing stresses.
The two systems were subjected to axial and oblique forces and both guaranteed good results over simulated masticatory cycle. However, the Locator system seemed to better respond to the overall load distributions.
Clinicians should choose the better prosthetic solution for the ridge they want to restore. Both retention systems offer long-term success if applied following the manufacture guide limitations and suggestions.
本文旨在强调两种不同的种植牙覆盖义齿固位系统的口腔修复学部件特征。如今，使用钛制种植牙来替代缺失牙被认为是一种可预测的程序，能为患者长期提供美观和功能。
应用有限元分析（FEA）和基于冯·米塞斯准则的测试，以评估两种不同口腔修复学固位系统上的应力分布。创建了带有球帽附着体和Locator®系统的两个模型，并施加模拟咀嚼应力。
这两种系统均承受轴向和斜向力，并且在模拟咀嚼周期中都保证了良好的效果。然而，Locator系统似乎对整体负荷分布的响应更好。
临床医生应为他们想要修复的牙槽嵴选择更好的修复解决方案。如果按照制造商指南的限制和建议应用，两种固位系统都能取得长期成功。
