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Volume 34 , Issue 6
November/December 2014
Pages 849–855

Bone Regeneration Around Implants Placed in Fresh Extraction Sockets Covered with a Dual-Layer PTFE/Collagen Membrane: An Experimental Study in Dogs

Nick Tovar, PhD/Ryo Jimbo, DDS, PhD/Charles Marin, DDS, MS, PhD/Lukasz Witek, MS/Marcelo Suzuki, DDS/Estevam A. Bonfante, DDS, MS, PhD/Paulo G. Coelho, DDS, BS, MS, MSMtE, PhD

DOI: 10.11607/prd.1723

This study investigated whether the use of a dual-layer polytetrafluoroethylene (PTFE)/porcine-derived bioresorbable pericardium membrane enhances the osseointegration around implants compared to a single-layer porcine-derived bioresorbable pericardium membrane and a no-membrane control group. Endosseous implants were placed in the fresh extraction sockets of beagles. At 6 weeks, bone loss and apical soft tissue migration occurred in the control group, whereas bone successfully formed to the neck of the implant for the single-layer porcine-derived bioresorbable pericardium membrane group. The dual-layer PTFE/ porcine-derived bioresorbable pericardium membrane showed bone growth coronal to the neck of the implant. Bone-to-implant contact and buccal bone loss were respectively higher and lower relative to the single-layer but not statistically different. (Int J Periodontics Restorative Dent 2014;34:849–855. doi: 10.11607/prd.1723)

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