Soo Suet Yeo, Silikas Nikolaos, Satterthwaite Julian
Centre for Restorative Dentistry, Faculty of Dentistry, The National University of Malaysia, Selangor 43600, Malaysia.
Dentistry, School of Medical Sciences, University of Manchester, Manchester M13 9PL, UK.
Materials (Basel). 2019 Jun 23;12(12):2009. doi: 10.3390/ma12122009.
A single paragraph of about 200 words maximum. For research articles, abstracts should give a pertinent overview of the work. We strongly encourage authors to use the following style of structured abstracts, but without headings: (1) Background: Place the question addressed in a broad context and highlight the purpose of the study; (2) Methods: Describe briefly the main methods or treatments applied; (3) Results: Summarize the article's main findings; and (4) Conclusions: Indicate the main conclusions or interpretations. The abstract should be an objective representation of the article, it must not contain results which are not presented and substantiated in the main text and should not exaggerate the main conclusions. Please add in this section. The aim of the study was to investigate the fracture behaviour of four different groups of zirconia abutments with internal and external connections: (A) Astra Tech ZirDesign™ abutment on Astra Tech Implants, (B) Procera Esthetic abutment on Nobel Biocare MK III Groovy Implants, (C) IPS e.max on Straumann Implants, and (D) ZiReal Posts on Biomet 3I implants. The load was applied on the assemblies using a Zwick universal testing machine: the initial and final failure loads and amplitude were recorded using acoustic emission technique. Mean initial and final failure force was found to be significantly different in each group (P < 0.001). IPS e.max Straumann abutments exhibited the highest resistance to final fracture force compared to other abutment types. Acoustic emission can be used as one of the methods to detect fracture behaviour of implant abutments. There were no significant differences in fracture loads between the internal and externally connected zirconia abutments studied. However, externally connected abutments demonstrated screw loosening and some deformations.
最多200字的一段内容。对于研究文章，摘要应提供相关工作的概述。我们强烈鼓励作者采用以下结构化摘要的风格，但不使用标题：（1）背景：将所解决的问题置于广泛背景中并突出研究目的；（2）方法：简要描述所应用的主要方法或治疗手段；（3）结果：总结文章的主要发现；（4）结论：指出主要结论或解释。摘要应客观呈现文章内容，不得包含正文中未呈现和证实的结果，也不应夸大主要结论。请在此部分添加。本研究旨在调查四组不同的带有内连接和外连接的氧化锆基台的断裂行为：（A）Astra Tech种植体上的Astra Tech ZirDesign™基台，（B）Nobel Biocare MK III Groovy种植体上的Procera Esthetic基台，（C）Straumann种植体上的IPS e.max基台，以及（D）Biomet 3I种植体上的ZiReal桩。使用Zwick万能试验机对组件施加负载：采用声发射技术记录初始和最终破坏载荷以及振幅。发现每组的平均初始和最终破坏力存在显著差异（P < 0.001）。与其他基台类型相比，IPS e.max Straumann基台对最终断裂力表现出最高的抵抗力。声发射可作为检测种植体基台断裂行为的方法之一。所研究的内连接和外连接氧化锆基台之间的断裂载荷无显著差异。然而，外连接基台出现了螺丝松动和一些变形。
