상악동 골이식술을 동반한 임플란트 식립 시 골이식재의 높이 변화에 대한 방사선학적 평가
A radiographic evaluation of graft height changes after maxillary sinus augmentation and placement of dental implants
김지선, 채중규, 김종관, 김창성, 이서경, 채경준, 정의원, 최성호, 조규성, 방은경,
소속 상세정보
김지선 ( Kim Ji-Sun ) - 국민건강보험공단 일산병원 치주과
채중규 ( Chae Jung-Kiu ) - 연세대학교 치과대학 치주과학교실
김종관 ( Kim Chong-Kwan ) - 연세대학교 치과대학 치주과학교실
김창성 ( Kim Chang-Sung ) - 연세대학교 치과대학 치주과학교실
이서경 ( Lee Seo-Kyoung ) - 국민건강보험공단 일산병원 치주과
채경준 ( Chae Gyung-Joon ) - 연세대학교 치과대학 치주과학교실
정의원 ( Jung Ui-Won ) - 연세대학교 치과대학 치주과학교실
최성호 ( Choi Seong-Ho ) - 연세대학교 치과대학 치주과학교실
조규성 ( Cho Kyoo-Sung ) - 연세대학교 치과대학 치주과학교실
방은경 ( Pang Eun-Kyoung ) - 이화여자대학교 의과대학 치과학교실 치주과
KMID : 0363020070370020277
Abstract
The edentulous posterior maxilla generally provides a limited amount of bone height because of atrophy of the ridge and pneumatization of the maxillary sinus, Maxillary sinus augmentation is one of the surgical techniques for reconstruction of the severely resorbed posterior maxilla. The purpose of this study was to evaluate the survival rate of implants and the long-term changes of graft height after maxillary sinus augmentation by lateral window approach. From September 1996 to July 2004, maxillary sinus augmentation with mixed grafts of autograft, allograft, xenograft and alloplast were performed on 45 patients and 100 implants were placed. We evaluated the survival rate of implants and the changes of BL(bone length)/IL(implant length) according to time using panoramic radiographs. The survival rate of implants was 91.0% for follow-up period. The mean reduction of graft heights was 0.34mm(3.0%) for 6 months and 1.22mm(1O.66%) for 3 years after augmentation. The total mean BL/IL was during 5 year observation period after augmentation and decreased slightly over time. The result means that graft materials were stable above the implant apex. BL/ILs of 1stage procedure were significantly decreased at 1-2 year, 3-4 year after augmentation and no statistically significant changes were observed in those of 2 stage procedure. The graft materials of both procedures were stable above the implant apex. No statistically significant changes of BL/IL were observed in the grafts combined with low amount of autogenous bone or without autogenous bone. The graft materials of both groups were stable above the implant apex. The results indicated that the placement of dental implants with maxillary sinus augmentation showed predictable clinical results and the grafts combined with low amount of autogenous bone or without autogenous bone had long-term resistance to resorption in maxillary sinus.
키워드
Maxillary sinus augmentation;Graft materials;Height changes;Radiographic evaluation
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