Surface treatments of ti-alloy based bone implant manufactured by electrical discharge machining

Q4 Engineering

Ingenieria y Universidad Pub Date : 2018-08-09 DOI:10.11144/JAVERIANA.IYU22-2.STTB

N. Qosim, S. Supriadi, A. S. Saragih, Y. Whulanza

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引用次数: 13

Abstract

Objective: This research aims to observe the extent to which several surface treatment techniques increase the surface roughness of titanium alloy implants which was manufactured via electrical discharge machining (EDM). The effects of these techniques were also observed to decrease the Cu content on the implant surface. Materials and Methods: In this research, ultrasonic cleaning, rotary tumbler polishing, and brushing were employed as techniques to increase the roughness of a titanium implant which was manufactured via EDM, to the moderately rough category, and to reduce the contaminant element deposited on its surface. An MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay test was also used to observe the effect of these engineered specimens with respect to mesenchymal stem cells’ proliferation. Results and Discussion: The results show that ultrasonic cleaning and rotary tumbler polishing created a significant increase (90% and 67%, respectively) in the surface roughness. On the other hand, brushing was shown to be the best benchmark for reducing the contamination of Copper (Cu). Furthermore, rotary tumbler polishing and brushing can increase the percentage of living cells compared to the original surface EDM specimens. Conclusion: All micro-finishing methods that were employed are able to increase the surface roughness of Ti alloy based-implant to moderately rough category.

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电火花加工钛合金基骨种植体的表面处理

目的:观察几种表面处理技术对电火花加工钛合金种植体表面粗糙度的影响程度。这些技术的效果也被观察到降低种植体表面的铜含量。材料与方法:本研究采用超声清洗、旋转滚筒抛光、刷刷等技术，将电火花加工的钛种植体表面粗糙度提高到中等粗糙度，并减少表面沉积的污染元素。采用MTT(3-(4,5-二甲基噻唑-2-基)-2,5-二苯基溴化四唑)测定法观察这些工程样品对间充质干细胞增殖的影响。结果与讨论:结果表明，超声波清洗和旋转滚筒抛光使表面粗糙度显著提高(分别为90%和67%)。另一方面，刷镀被证明是减少铜污染的最佳基准。此外，与原始表面电火花加工样品相比，旋转滚筒抛光和涂刷可以增加活细胞的百分比。结论:采用各种微精加工方法均能使钛合金基种植体表面粗糙度达到中等粗糙水平。

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来源期刊

Ingenieria y Universidad Engineering-Engineering (all)

CiteScore

0.80

自引率

0.00%

发文量

期刊介绍： Our journal''s main objective is to serve as a medium for the diffusion and divulgation of the articles and investigations in the engineering scientific and investigative fields. All the documents presented as result of an investigation will be received, as well as any review about engineering, this includes essays that might contribute to the academic and scientific discussion of any of the branches of engineering. Any contribution to the subject related to engineering development, ethics, values, or its relations with policies, culture, society and environmental fields are welcome. The publication frequency is semestral.