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Volume 20 , Issue 2

Coronal Ridge Augmentation in the Absence of Bilateral Bony Plates Around a Pathologically Denuded Implant Surface

Zvi Artzi, DMD

Guided bone regeneration via an osteopromotive barrier is indicated in different alveolar bone deficiencies and in periimplant bone destruction around pathologically denuded exposed implants. Regeneration of the osseous volume is determined by understanding the biologic behavior response of hard and soft tissues in guided tissue regeneration procedures. Consequently, a meticulous surgical approach is mandatory to preserve wound healing cascades and tissue stability. However, hard tissue augmentation in the nonsupported coronal direction has been unpredictable. A case report is presented in which a severely defected ridge around a pathologically exposed functional implant combined with a destructive extraction site was restored and regenerated. Bovine bone mineral particles (Bio-Oss) served as the graft material and were followed by an expanded polytetrafluoroethylene (e-PTFE) occlusive membrane as a bilateral regenerative tissue guide. Subsequently, 2 additional implants were placed in the augmented hard tissue ridge.

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