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Int J Oral Maxillofac Surg. 2014 Jan;43(1):75-84. doi: 10.1016/j.ijom.2013.05.017. Epub 2013 Jun 28.

High-density polytetrafluoroethylene membranes in guided bone and tissue regeneration procedures: a literature review.

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Department of Periodontology, Universitat Internacional de Catalunya, Spain.
Department of Periodontology, Universitat Internacional de Catalunya, Spain. Electronic address:


Expanded polytetrafluoroethylene (e-PTFE) has been used successfully as a membrane barrier for regeneration procedures. However, when exposed to the oral cavity, its high porosity increases the risk of early infection, which can affect surgical outcomes. An alternative to e-PTFE is non-expanded and dense polytetrafluoroethylene (n-PFTE), which results in lower levels of early infection following surgical procedures. The aim of this literature review was to analyze and describe the available literature on n-PFTE, report the indications for use, advantages, disadvantages, surgical protocols, and complications. The medical databases Medline-PubMed and Cochrane Library were searched and supplemented with a hand search for reports published between 1980 and May 2012 on n-PTFE membranes. The search strategy was limited to animal, human, and in vitro studies in dental journals published in English. Twenty-four articles that analyzed the use of n-PTFE as a barrier membrane for guided tissue regeneration and guided bone regeneration around teeth and implants were identified: two in vitro studies, seven experimental studies, and 15 clinical studies. There is limited clinical and histological evidence for the use of n-PTFE membranes at present, with some indications in guided tissue regeneration and guided bone regeneration in immediate implants and fresh extraction sockets.


dense PTFE; high-density PTFE; microporous PTFE; nano-porous PTFE; non-expanded PTFE; non-permeable PTFE; non-porous PTFE

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