Implant surface design for improved implant stability - A study on Ti6Al4V dense and cellular structures produced by Selective Laser Melting

被引：51

作者：

Bartolomeu, F. ^{[1
]}

Costa, M. M. ^{[1
]}

Gomes, J. R. ^{[1
]}

Alves, N. ^{[2
]}

Abreu, C. S. ^{[1
,3
]}

Silva, F. S. ^{[1
]}

Miranda, G. ^{[1
]}

机构：

[1] Univ Minho, Ctr Microelect Mech Syst CMEMS, UMinho, Campus Azurem, P-4800058 Guimaraes, Portugal

[2] Polytech Inst Leiria, Ctr Rapid & Sustainable Prod Dev, Rua Gen Norton de Matos, P-2411901 Leiria, Portugal

[3] ISEP, Porto Super Engn Inst, Phys Dept, Porto, Portugal

来源：

TRIBOLOGY INTERNATIONAL | 2019年 / 129卷

关键词：

Ti6Al4V; Selective laser melting; Implant surface design; Static and dynamic friction; ACID-ETCHED SURFACE; MECHANICAL-PROPERTIES; TITANIUM IMPLANTS; PORE-SIZE; IN-VIVO; BIOMEDICAL APPLICATIONS; TRIBOLOGICAL BEHAVIOR; DENTAL IMPLANTS; BONE INGROWTH; ALLOYS;

D O I：

10.1016/j.triboint.2018.08.012

中图分类号：

TH [机械、仪表工业];

学科分类号：

120111 [工业工程];

摘要：

Focusing on implant surface design, aiming to improve implant primary stability, SLM technology was explored to produce dense and cellular structured Ti6Al4V specimens. The SLM specimens and also a commercial casted/forged Ti6Al4V group, were sandblasted and acid-etched to obtain a moderate surface roughness topography, typically used in implant manufacturing. Ti6Al4V-bone interaction and tribological performance were assessed by performing sliding tests aiming to replicate in some extension the insertion of a hip implant. The results shown a 24 and 32% higher kinetic friction coefficient values when comparing the cellular structures with the conventional casted/forged Ti6Al4V. These friction results together with a high amount of adhered bone are promising evidences of a higher efficiency of Ti6Al4V cellular structures for enhancing implant stability.

引用

页码：272 / 282

页数：11

共 62 条

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