Journal
IMPLANT DENTISTRY
Volume 21, Issue 3, Pages 171-174Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/ID.0b013e31824eece1
Keywords
guided bone regeneration (GBR); synthetic membrane; polylactic acid (PLA) membrane; foreign body reaction
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Purpose: This case report describes a biologic complication related to polylactic acid membrane in guided bone regeneration (GBR). Materials and Methods: A healthy 42-year-old patient complained of persistent discomfort of the maxillary anterior gingiva. Clinical examination and radiographs showed severe periodontal destruction of teeth 7 through 10. Teeth extraction was followed by early implant placement with GBR. Results: Four months later, severe bone resorption was observed upon surgical exposure. A second GBR was performed. Wound healing progressed uneventfully and an implant-supported fixed partial denture was later loaded. Conclusion: We presume that this complication was a foreign body reaction to the polylactic acid membrane. Such a reaction can affect soft and hard tissue healing following GBR. Long-term follow-up is needed to determine stability of the results. (Implant Dent 2012;21:171-174)
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