이종골을 이용한 상악동 측벽거상술과 동시 식립한 임프란트에서 안정성에 대한 공진 주파수 분석
Resonance Frequency Analysis in Non-submerged Internal type implant with Sinus Augmentation Using Deproteinized Bovine Bone Mineral
이주현, 민현기, 이진숙, 김명래, 강나라,
소속 상세정보
이주현 ( Lee Ju-Hyon ) - 이화여자대학교 의학전문대학원 구강악안면외과
민현기 ( Min Hyun-Gi ) - 이화여자대학교 의학전문대학원 구강악안면외과
이진숙 ( Lee Jin-Sook ) - 이화여자대학교 임상치의학대학원 임플란트학과
김명래 ( Kim Myung-Rae ) - 이화여자대학교 의학전문대학원 구강악안면외과
강나라 ( Kang Na-Ra ) - 이화여자대학교 의학전문대학원 구강악안면외과
KMID : 0360120080300060554
Abstract
In posterior maxilla, it is difficult to achieve primary stability of implants due to sinus pneumatization, alveolar bone loss, and low bone quality. The accurate and objective primary stability assessment is important for good prognosis of implants. PURPOSE: The aim of this study was to assess the primary stability of the non- submerged, internal type implants with maxillary sinus augmentation using deproteinized bovine bone mineral by a resonance frequency analyzer, when residual alveolar bone height is under 8mm MATERIALS AND METHODS: A total of 20 implants was placed into 5 grafted maxillary sinuses in 5 patients. Deproteinized bovine bone mineral (Bio-Oss(R)) was used as graft material. SSII implants (diameter 4.1mm, and length 11.5mm, SLA suface)) were placed. All of the patients received maxillary sinus graft procedure by 1-step technique. Residual bone height was 1.3~7.8mm (mean 4.4mm) measured by panorama radiography. After implant placement, RFA was measured at 4,8,12,20 weeks. The results were divided into 2 groups; RFA value under 4mm and over 5mm of bone height. It was statistically analyzed. RESULTS: 1. The primary stability of implants was increased with time 2. The RFA value was above 65 ISQ at 12 weeks 3. There was no correlation between RFA and residual alveolar bone height in maxillary sinus augmentation by 1-step technique CONCLUSION: 1-step surgical procedure is a feasible option for patients with as little as 4mm residual alveolar bone height , when utilizing non-submerged, internal type implants with xenografts
키워드
Sinus graft;Implant;RFA
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