Maxillofacial Plastic and Reconstructive Surgery

  • 제31권3호
  • /
  • Pages.237-242
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  • 2009
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  • 2288-8101(pISSN)
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  • 2288-8586(eISSN)
대한악안면성형재건외과학회 (Korean Association of Maxillofacial Plastic and Reconstructive Surgeons)
권호 표지

RBM 표면처리 내부연결형 비매립 임플란트의 4년 생존율과 주변골 흡수에 관한 임상 및 방사선학적 연구

FOUR-YEAR SURVIVAL RATE OF RBM SURFACE INTERNAL CONNECTION NON-SUBMERGED IMPLANTS AND THE CHANGE OF THE PERI-IMPLANT CRESTAL BONE

  • 전혜란 (이화여자대학교 임상치의학대학원 임플란트치의학과) ;
  • 김명래 (이화여자대학교 임상치의학대학원 임플란트치의학과) ;
  • 이동현 (이화여자대학교 의학전문대학원 치과학교실 구강악안면외과) ;
  • 신정섭 (이화여자대학교 의학전문대학원 치과학교실 구강악안면외과) ;
  • 강나라 (이화여자대학교 임상치의학대학원 임플란트치의학과)
  • Jeon, Hye-Ran (Ewha Womans University Graduate School of Clinical Dentistry Implant Dentistry) ;
  • Kim, Myung-Rae (Ewha Womans University Graduate School of Clinical Dentistry Implant Dentistry) ;
  • Lee, Dong-Hyun (Ewha Womans University School of Medicine Department of Oral and Maxillofacial Surgery) ;
  • Shin, Jung-Sub (Ewha Womans University School of Medicine Department of Oral and Maxillofacial Surgery) ;
  • Kang, Na-Ra (Ewha Womans University Graduate School of Clinical Dentistry Implant Dentistry)
  • 투고 : 2008.12.31
  • 심사 : 2009.05.04
  • 발행 : 2009.05.30
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초록

Implant-supported fixed and removable prostheses provide a proper treatment modality with reliable success. The SS $II^{(R)}$ Implants is a one-stage nonsubmerged threaded titanium implants with Resorbable Blasting Media (RBM) surface developed by Osstem company (Busan, Korea) in October of 2002. This study is to evaluate the survival rate of the SS $II^{(R)}$ Implants for 4 years using radiographic parameters and to review the retrieved implants by the cytotoxicity tests. Since September 2003, 439 SS $II^{(R)}$ implants had been used for 173 patients at Ewha Womans University Medical Center in Korea. Patients consisted of 91 females (52.6 %) and 82 males (47.4 %). The patients' mean age was $42\;{\pm}16$ years, ranging from 21 to 83 years. The follow-up period ranged from 9 to 46 months (mean F/U $24.2\;{\pm}\;10.2$ months). The results are as follows; 1. Of 439 implants, 17 implants were removed and 4-year cumulative survival rate was 96.1%. 2. 82.3% of 17 failed implants were founded during healing phase, and 94.1% of failed fixtures were removed within 5 months after implantation. 3. Crestal bone around the implants was resorbed to 1 mm in 89.0%, to 1 - 2 mm loss of the marginal bone in 8.3%, and the bone loss over 2 mm was occurred in 2.7%. 4. Microscopic examination of the retrieved implants disclosed Grade 0 cytotoxicity in 4 and Grade 1 cytotoxicity in 2 of 6 groups divided according to LOT numbers. Inhibition rate with optical density was acceptable as low as ISO standard.

키워드

참고문헌

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