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Improving the fatigue behavior of dental implants through processing commercial purity titanium by equal-channel angular pressing

Improving the fatigue behavior of dental implants through processing commercial purity titanium by equal-channel angular pressing
Improving the fatigue behavior of dental implants through processing commercial purity titanium by equal-channel angular pressing
An investigation was conducted to evaluate the feasibility of using commercial purity (CP) titanium of grade 1 for dental implants after processing by equal-channel angular pressing (ECAP). The material was processed by ECAP for 4 passes at room temperature. Dental implants were machined from the unprocessed material and the material processed by ECAP and their mechanical properties were evaluated in tensile and compression testing and in fatigue using the conditions specified in the ISO 14801 standard for dental implants. The results show processing by ECAP increases the yield stress and the ultimate tensile stress but reduces the strain hardening rate and hence the overall elongation to failure. Although processing by ECAP increases the fatigue life using cyclic bending loads, a comparison with published data suggests the fatigue behavior CP Ti of grade 1 is slightly less satisfactory than for commercial implants fabricated from higher grade titanium alloys.
commercial purity titanium, dental implants, equal-channel angular pressing, fatigue, severe plastic deformation
0921-5093
312-318
Figueiredo, Roberto B.
2e0060b8-6368-4d87-825a-c3cb90e92145
de C. Barbosa, Eduardo R.
4a61cbcd-20c1-4e8b-8c9e-8df715993b12
Zhao, Xicheng
d17c4b44-27af-4384-9f37-b501509b0b26
Yang, Xirong
dfc64746-740d-401f-aad0-5189250434b4
Liu, Xiaoyan
86c14145-8101-4e1d-9d30-40baac2c5bee
Cetlin, Paulo R.
6fe5efb8-7976-4d56-8aae-08cbf76b9628
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Figueiredo, Roberto B.
2e0060b8-6368-4d87-825a-c3cb90e92145
de C. Barbosa, Eduardo R.
4a61cbcd-20c1-4e8b-8c9e-8df715993b12
Zhao, Xicheng
d17c4b44-27af-4384-9f37-b501509b0b26
Yang, Xirong
dfc64746-740d-401f-aad0-5189250434b4
Liu, Xiaoyan
86c14145-8101-4e1d-9d30-40baac2c5bee
Cetlin, Paulo R.
6fe5efb8-7976-4d56-8aae-08cbf76b9628
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86

Figueiredo, Roberto B., de C. Barbosa, Eduardo R., Zhao, Xicheng, Yang, Xirong, Liu, Xiaoyan, Cetlin, Paulo R. and Langdon, Terence G. (2014) Improving the fatigue behavior of dental implants through processing commercial purity titanium by equal-channel angular pressing. Materials Science and Engineering: A, 619, 312-318. (doi:10.1016/j.msea.2014.09.099).

Record type: Article

Abstract

An investigation was conducted to evaluate the feasibility of using commercial purity (CP) titanium of grade 1 for dental implants after processing by equal-channel angular pressing (ECAP). The material was processed by ECAP for 4 passes at room temperature. Dental implants were machined from the unprocessed material and the material processed by ECAP and their mechanical properties were evaluated in tensile and compression testing and in fatigue using the conditions specified in the ISO 14801 standard for dental implants. The results show processing by ECAP increases the yield stress and the ultimate tensile stress but reduces the strain hardening rate and hence the overall elongation to failure. Although processing by ECAP increases the fatigue life using cyclic bending loads, a comparison with published data suggests the fatigue behavior CP Ti of grade 1 is slightly less satisfactory than for commercial implants fabricated from higher grade titanium alloys.

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More information

e-pub ahead of print date: 5 October 2014
Published date: 1 December 2014
Keywords: commercial purity titanium, dental implants, equal-channel angular pressing, fatigue, severe plastic deformation
Organisations: Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 372286
URI: http://eprints.soton.ac.uk/id/eprint/372286
ISSN: 0921-5093
PURE UUID: 2005f1f7-06c1-4ace-84f6-74ee4ba496d4
ORCID for Terence G. Langdon: ORCID iD orcid.org/0000-0003-3541-9250

Catalogue record

Date deposited: 04 Dec 2014 16:40
Last modified: 15 Mar 2024 03:13

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Contributors

Author: Roberto B. Figueiredo
Author: Eduardo R. de C. Barbosa
Author: Xicheng Zhao
Author: Xirong Yang
Author: Xiaoyan Liu
Author: Paulo R. Cetlin

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