Journal of Periodontal and Implant Science

Korean Academy of Periodontology (대한치주과학회)
권호 표지

Quantitative investigations of titanium alloy implants

타이태늄 합금의 생체적합도에 관한 연구

  • Han, Chong-Hyun (Dept of Prosthodontics, College of Dentistry, Yonsei University) ;
  • Heo, Seong-Joo (Dept of Prosthodontics and Dental Research Institute, College of Dentistry, SNU) ;
  • Ku, Young (Dept of Periodontics, and Dental Research Institute, College of Dentistry, SNU) ;
  • Choi, Young-Chang (Dept of Dentistry, Medical School(St. Mary Hospital), Catholic University) ;
  • Chung, Chong-Pyong (Dept of Periodontics, and Dental Research Institute, College of Dentistry, SNU) ;
  • Park, Chung-Keun (Dept of Materials Science and Engineering, KAIST)
  • 한종현 (연세대학교 치과대학 보철학교실(영동세브란스)) ;
  • 허성주 (서울대학교 치과대학 보철학교실 및 치학연구소) ;
  • 구영 (서울대학교 치과대학 치주과학교실 및 치학연구소) ;
  • 최용창 (카톨릭대학교 의과대학 치과학교실(여의도 성모)) ;
  • 정종평 (서울대학교 치과대학 치주과학교실 및 치학연구소) ;
  • 박중근 (한국과학기술원 재료공학과)
  • Published : 1998.09.30
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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 $10\;{\mu}m$ thick undecalcified ground sections in the light microscope and Titanium-13Zirconium-6Niobium showed more mean bone-tometal contact ratio than to other twotitanium alloys but had no statistically significant differences were found among the three materials(P>0.01).

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