Journal of Periodontal and Implant Science

Korean Academy of Periodontology (대한치주과학회)
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Analysis on cause of failure of guided bone regeneration during implant placement : A retrospective study

임플란트 시술 시 GBR의 실패 원인분석에 관한 후향적 연구

  • Ko, Sun-Young (Department of Periodontology, School of Dentistry, Chonbuk National University) ;
  • Oh, Jun-Ho (Department of Periodontology, School of Dentistry, Chonbuk National University) ;
  • Lee, Seung-Jae (Department of Periodontology, School of Dentistry, Chonbuk National University) ;
  • Kim, Hyung-Seop (Department of Periodontology, School of Dentistry, Chonbuk National University)
  • 고선영 (전북대학교 치의학전문대학원 치주과학교실) ;
  • 오준호 (전북대학교 치의학전문대학원 치주과학교실) ;
  • 이승재 (전북대학교 치의학전문대학원 치주과학교실) ;
  • 김형섭 (전북대학교 치의학전문대학원 치주과학교실)
  • Published : 2008.09.30
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Abstract

Purpose: The aim of this retrospective study is to evaluate survival rate of implant and bone formation, to analyze failure contribution factor. Material and Methods: A total of 52 consecutive patients(35 male, 17 female, mean age 49 years) with 104 osseous defects were treated during the period from October 2004 to June 2007 with a simultaneous or staged GBR approach using non-resorbable or resorbable membranes combined with autogenous bone grafts or xenograft(Bio-Oss, Bio-cera, BBP). Result: A total of 32(30,8%) of 104 GBR-treated sites failed the bone formation and a total of 5(5.6%) of 89 implants were removed. Early exposure of the membrane has significantly affected bone formation(p<0.05). Non-resorbable membrane showed more exposure of the membrane and low success rate of bone formation than resorbable membrane(p<0.05). There were no difference between success rate of bone formation and using autogenous bone or graft materials. There were no statistically significant difference between success rate of bone formation and smoking or using PRP. Mandible showed more success rate of bone formation than maxilla(p<0.05). Conclusion: Early exposure of the membrane, membrane type and maxilla/mandible type have influence on success rate of bone formation during GBR.

Keywords

References

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