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Risk Factors for Wound Dehiscence after Guided Bone Regeneration in Dental Implant Surgery

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Kim, Young Kyun; Yun, Pil Young

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Maxillofacial Plastic and Reconstructive Surgery, Vol.36 No.3, pp.116-123
Purpose: The purpose of this study was to evaluate risks for wound dehiscence after guided bone regeneration (GBR)in dental implant surgery. Methods: Patients who received dental implant therapy with GBR procedure at Seoul National University Bundang Hospital(Seongnam, Korea) from June 2004 to May 2007 were included. The clinical outcome of interest was complications relatedto dental implant surgery. The factors influencing wound dehiscence, classified into patient-related factors, surgery-relatedfactors and material-related factors, were evaluated. Results: One hundred and fifteen cases (202 implants) were included in this study. Wound dehiscence (19.1%) was considereda major complication. The risk of wound dehiscence was higher in males than in females (odds ratio=4.279, P =0.014). Inthe main graft, the allogenic group had the lowest risk of wound dehiscence (odds ratio=0.106, P =0.006). Though the externalconnection group had a higher risk of wound dehiscence than the internal connection group (odds ratio=2.381), the differencewas not significant (P =0.100). Conclusion: In this study, male gender and main graft have the highest risk of wound dehiscence. To reduce wounddehiscence after GBR, instructions on postoperative care with supplementary procedure for the protection of the wound dehiscenceis recommended, especially to male patients. A main graft with a gel base can reduce the risk of wound dehiscence.
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Yun, Pil Young윤필영
  • School of Dentistry
  • Department of Dentistry
Research Area Dentistry, Oral Pathology, Oral and Maxillofacial Surgery, 구강병리학, 구강악안면외과학, 치의학


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