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Published on: October 6, 2022
Postextraction ridge preservation by using dense PTFE membranes: A systematic review and meta-analysis
Georgios S Chatzopoulos1, Vasiliki P Koidou2, Michelle Sonnenberger3
1Diplomate of the American Board of Periodontology and Private practice Limited to Periodontics and Implant Dentistry, London, UK; Former Resident, Division of Periodontology, Department of Developmental and Surgical Sciences, School of Dentistry, University of Minnesota, Minneapolis, Minn.
Dense polytetrafluoroethylene (dPTFE) membranes improve keratinized tissue width and reduce vertical bone loss after tooth extraction. This systematic review confirms their benefit in alveolar ridge preservation compared to extraction alone.
Area of Science:
- Dentistry
- Regenerative Medicine
- Periodontology
Background:
- Alveolar ridge preservation is crucial after tooth extraction to maintain bone and soft tissue volume.
- Dense polytetrafluoroethylene (dPTFE) membranes are proposed for alveolar ridge preservation to prevent bacterial contamination and preserve soft tissue anatomy.
- Evidence from systematic reviews on dPTFE membranes' efficacy in postextraction sites is limited.
Approach:
- A systematic review and meta-analysis was conducted to evaluate dPTFE membranes for alveolar ridge preservation.
- Searches were performed in PubMed, Embase, and Cochrane Library, supplemented by manual searches.
- Included studies assessed clinical and radiographic dimensional changes, histomorphometrics, microcomputed tomography, implant outcomes, and complications.
Key Points:
- Meta-analysis of 5 studies (from 23 identified) showed dPTFE membranes significantly increased keratinized tissue width by 3.49 mm compared to extraction alone.
- No significant difference in radiographic horizontal ridge dimensions was observed.
- dPTFE membranes combined with allograft showed a significant reduction in vertical bone loss (1.06 mm) compared to extraction alone.
Conclusions:
- dPTFE membranes demonstrate efficacy in enhancing keratinized tissue width in alveolar ridge preservation.
- The use of dPTFE membranes, particularly with allografts, is effective in minimizing vertical bone loss post-extraction.
- Further research may explore optimal combinations and long-term outcomes.
