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Advanced Biomaterials and Devices in Medicine
December 2015, Volume 2, Issue 2, pp 63–69
Development and study of medical implants made from nanostructured titanium
A.V. Polyakov1, G.S. Dyakonov1, I.P. Semenova1, G.I. Raab1, L. Dluhos2, R.Z. Valiev1,3*
1 Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, Ufa, 450000, Russia
2 Timplant s.r.o., Ostrava, CZ 725 25, Czech Republic
3 St. Petersburg State University, Peterhof, St. Petersburg, 198504, Russia
* Corresponding author: Ruslan Z. Valiev, e-mail: rzvaliev@mail.rb.ru
Abstract
Nanostructured Ti with enhanced static and fatigue strengths is a promising material for medical implants. The use of a combined Severe Plastic Deformation (SPD) processing, including the new Equal Channel Angular Pressing (ECAP)-Conform technique, leads to significant strengthening of Grade 4 titanium rods, due to material nanostructuring. The use of nano-titanium rods with enhanced strength and fatigue life enables the fabrication of implants with improved design for dentistry and orthopaedics. Miniaturized dental implants with diameters as small as 2 mm and nano-titanium plates with reduced thickness were manufactured and successfully tested in clinical trials.
Keywords: nanostructured titanium, severe plastic deformation, ECAP-Conform, fatigue strength, dental implants, bone plates, mini-implants
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