Journal of Periodontal and Implant Science

Korean Academy of Periodontology (대한치주과학회)
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A radiographic evaluation of graft height changes after maxillary sinus augmentation and placement of dental implants

상악동 골이식술을 동반한 임플란트 식립 시 골이식재의 높이 변화에 대한 방사선학적 평가

  • Kim, Ji-Sun (Department of Periodontics, National Health Insurance Corporation Il-San Hospital, Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University) ;
  • Lee, Seo-Kyoung (Department of Periodontics, National Health Insurance Corporation Il-San Hospital, Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University) ;
  • Chae, Gyung-Joon (Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University) ;
  • Jung, Ui-Won (Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University) ;
  • Kim, Chang-Sung (Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University) ;
  • Choi, Seong-Ho (Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University) ;
  • Cho, Kyoo-Sung (Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University) ;
  • Chai, Jung-Kyu (Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University) ;
  • Kim, Chong-Kwan (Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University) ;
  • Pang, Eun-Kyoung (Department of Periodontology, Department of Dentistry, School of medicine, Ewha Womans University)
  • 김지선 (국민건강보험공단 일산병원 치주과, 연세대학교 치주과학교실, 치주조직 재생 연구소) ;
  • 이서경 (국민건강보험공단 일산병원 치주과, 연세대학교 치주과학교실, 치주조직 재생 연구소) ;
  • 채경준 (연세대학교 치주과학교실, 치주조직 재생 연구소) ;
  • 정의원 (연세대학교 치주과학교실, 치주조직 재생 연구소) ;
  • 김창성 (연세대학교 치주과학교실, 치주조직 재생 연구소) ;
  • 최성호 (연세대학교 치주과학교실, 치주조직 재생 연구소) ;
  • 조규성 (연세대학교 치주과학교실, 치주조직 재생 연구소) ;
  • 채중규 (연세대학교 치주과학교실, 치주조직 재생 연구소) ;
  • 김종관 (연세대학교 치주과학교실, 치주조직 재생 연구소) ;
  • 방은경 (이화여자대학교 의과대학 치과학교실 치주과)
  • Published : 2007.06.30
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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 $1.34{\pm}0.21$ 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.

Keywords

References

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