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首页> 外文期刊>The International journal of oral & maxillofacial implants >Titanium-Zirconium Binary Alloy as Dental Implant Material: Analysis of the Influence of Compositional Change on Mechanical Properties and In Vitro Biologic Response
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Titanium-Zirconium Binary Alloy as Dental Implant Material: Analysis of the Influence of Compositional Change on Mechanical Properties and In Vitro Biologic Response

机译:钛锆二元合金作为牙种植体材料:组成变化对力学性能和体外生物学反应的影响分析

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Purpose: To evaluate the mechanical properties and biologic response of single-phase Ti-Zr alloys cast in higher-purity casting conditions, with comprehensive compositions (from 10 to 90 mol% of Zr). Materials and Methods: The mechanical properties and in vitro biologic response with proportional increase of Zr to Ti-Zr alloy composition were assessed. Tensile strength, surface hardness, and Young's modulus were examined. The in vitro cell response of the alloys was also tested with mouse osteoblast cells. Results: Analyses of mechanical tests demonstrated improved strength and reduced Young's modulus on this binary alloy system. In vitro cell culture studies with osteogenic MCT3T-E1 cells exhibited the highest attachment rate with the largest and more mature cells on Ti10Zr, instead of commercially pure Ti, whereas a significantly lower cell attachment rate and delayed alkaline phosphatase-specific activity (ALP) differentiation were detected on Ti50Zr. Conclusion: The results revealed that the composition did have an impact on the in vitro biologic response. Ti-Zr alloys with 50-50 mol% composition had a decreased biologic response, although the mechanical properties improved. The overall highest strength was Ti with 30 mol% Zr without significant decrease of biologic response.
机译:目的:评估在高纯度铸造条件下铸造的单相Ti-Zr合金的机械性能和生物学响应,该合金具有全面的成分(Zr的10至90 mol%)。材料和方法:评估Zr对Ti-Zr合金成分成比例增加的机械性能和体外生物学响应。检查拉伸强度,表面硬度和杨氏模量。还用小鼠成骨细胞测试了合金的体外细胞反应。结果:力学测试分析表明,该二元合金系统具有更高的强度和更低的杨氏模量。用成骨性MCT3T-E1细胞进行的体外细胞培养研究显示,Ti10Zr上的附着率最高,且细胞最大且更成熟,而不是商业上纯的Ti,而细胞附着率显着降低,碱性磷酸酶比活性(ALP)分化延迟在Ti50Zr上被检测到。结论:结果表明该组合物确实对体外生物反应有影响。尽管机械性能有所改善,但组成为50-50 mol%的Ti-Zr合金的生物学反应却有所降低。总体最高强度是含30 mol%Zr的Ti,而没有明显降低生物反应。

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