Quantitative investigations of titanium alloy implants.
10.5051/jkape.1998.28.3.401
- Author:
Chong Hyun HAN
1
;
Seong Joo HEO
;
Young KU
;
Young Chang CHOI
;
Chong Pyong CHUNG
;
Chung Keun PARK
Author Information
1. Department of Prosthodontics, College of Dentistry, Yonsei University, Korea.
- Publication Type:Original Article
- Keywords:
titanium;
alloy;
removal torque;
histomorphometry
- MeSH:
Alloys*;
Titanium*;
Torque
- From:The Journal of the Korean Academy of Periodontology
1998;28(3):401-407
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Screw shaped implants of Titanium-13Zirconium-6Niobium(newly developed), Titanium-6Zirconium-6Sn-6Niobium(newly developed) and Titanium-6Aluminum-4Vanadium were machined with square top and inserted in rabbit bone for 3 months. Biomechanical tests(removal torque) showed Titanium-13Zirconium-6Niobium and Titanium-6Zirconium-6Sn-6Niobium to be more stable in the bone bed than those of Titanium-6Aluminum-4Vanadium. Titanium-13Zirconium-6Niobium implants demonstrated a mean removal torque of 31.59Ncm while Titanium-6Aluminum-4Vanadium demonstrated a mean removal torque of 25.27Ncm and Titanium-6Zirconium-6Sn-6Niobium revealed a mean removal torque of 37.44Ncm and were statistically significance in Wilcoxon Signed Rank test(P<0.05). Histomorphometrical comparisons were performed on 10 micrometer thick undecalcified ground sections in the light microscope and Titanium-13Zirconium-6Niobium showed more mean bone-to-metal contact ratio than to other two titanium alloys but had no statistically significant differences were found among the three materials(P>0.01).
