티타늄 임플랜트의 두 가지 표면처리방식에 대한 골반응 - 양극 산화표면, IBAD HA 코팅 표면

BONE RESPONSE OF TWO DIFFERENT SURFACE TITANIUM SUBPERIOSTEAL IMPLANTS - ANODIZED SURFACE, IBAD HA COATING SURFACE

  • 이인구 (고려대학교 치과대학 보철학교실) ;
  • 서규원 (고려대학교 치과대학 보철학교실) ;
  • 최준언 (고려대학교 치과대학 보철학교실) ;
  • 정성민 (고려대학교 치과대학 보철학교실) ;
  • 류재준 (고려대학교 치과대학 보철학교실)
  • Lee, In-Ku (Department of Esthetic Restorative Dentistry, Graduate School of Clinical Dentistry, Korea University) ;
  • Suh, Kyu-Won (Department of Esthetic Restorative Dentistry, Graduate School of Clinical Dentistry, Korea University) ;
  • Choi, Joon-Eon (Department of Esthetic Restorative Dentistry, Graduate School of Clinical Dentistry, Korea University) ;
  • Jung, Sung-Min (Department of Esthetic Restorative Dentistry, Graduate School of Clinical Dentistry, Korea University) ;
  • Ryu, Jae-Jun (Department of Esthetic Restorative Dentistry, Graduate School of Clinical Dentistry, Korea University)
  • 발행 : 2007.02.28

초록

Statement of the problem: In case of poor bone quality or immediately loaded implant, various strategies have been developed focusing on the surface of materials to improve direct implant fixation to the bone. The microscopic properties of implant surfaces play a major role in the osseous healing of dental implant. Purpose of study: This study was undertaken to evaluate bone response of ion beam-assisted deposition(IBAD) of hydroxyapatite(HA) on the anodized surface of subperiosteal titanium implants. Material and methods: Two half doughnut shape subperiosteal titanium implants were made. The control group was treated with Anodized surface treatment and the test group was treated with IBAD of HA on control surface. Then two implants inserted together into the subperiosteum of the skull of 30 rats and histological response around implant was observed under LM(light microscope) and TEM(transmission electron microscope) on 4th, 6th and 8th week. Results: Many subperiosteal implants were fixed with fibrous connective tissue not with bony tissue because of weak primary stability. The control group observed poor bone response and there was no significant change at any observation time. However the test group showed advanced bone formation and showed direct bone to implant contact under LM on 8th week. The test group observed much rER in the cell of osteoblast but the control group showed little rER under TEM. Conclusions: The test group showed better bone formation than the control group at the condition of weak primary stability. With these results IBAD surface treatment method on Anodized surface, may be good effect at the condition of weak primary stability.

키워드

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