RBM 표면처리 내부연결형 비매립 임플란트 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, 강나라, 김명래, 이동현, 신정섭,
소속 상세정보
전혜란 ( Jeon Hye-Ran ) - 이화여자대학교 임상치의학대학원 임플란트학과
강나라 ( Kang Na-Ra ) - 이화여자대학교 의학전문대학원 구강악안면외과
김명래 ( Kim Myung-Rae ) - 이화여자대학교 임상치의학대학원 임플란트학과
이동현 ( Lee Dong-Hyun ) - 이화여자대학교 의학전문대학원 구강악안면외과
신정섭 ( Shin Jung-Sub ) - 이화여자대학교 의학전문대학원 구강악안면외과
KMID : 0360120090310030237
Abstract
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 +/- 16 years, ranging from 21 to 83 years. The follow-up period ranged from 9 to 46 months (mean F/U 24.2 +/- 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
SS 2(R) Implant;Survival rates;Cytotoxicity tests
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