Also known as high-density PTFE or dPTFE, is manufactured to eliminate expansion of the nodes and fibrils, resulting in a micro-porous material that is impervious to bacteria while still allowing diffusion of gases and small molecules. Dense PTFE was designed to withstand exposure in the oral environment, which represents an improvement to earlier versions of ePTFE in many applications, especially socket preservation where deliberate membrane exposure offers several advantages.See: Polytetrafluoroethylene (PTFE), Expanded polytetrafluoroethylene (ePTFE).
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