Time analysis of alveolar ridge preservation using a combination of mineralized bone‐plug and dense‐polytetrafluoroethylene membrane: A histomorphometric study

• Published in: Journal of periodontology (1970) 2020-02, Vol.91 (2), p.215-222
• Main Authors: Wen, Shih‐Cheng, Barootchi, Shayan, Huang, Wen‐Xia, Wang, Hom‐Lay
• Format: Article
• Language: English
• Subjects: allografts; alveolar bone loss; alveolar resorption; bone transplantation; polytetrafluoroethylene; socket graft
• ISSN: 0022-3492; 1943-3670
• DOI: 10.1002/JPER.19-0142

Background The objective of this study was to histologically evaluate and compare vital bone formation, residual graft particles, and fraction of connective tissue (CT)/other tissues between three different time points at 2‐month intervals after alveolar ridge preservation with a cancellous allograft and dense‒polytetrafluoroethylene (d‐PTFE) membrane. Methods Ridge preservation with a cancellous allograft and d‐PTFE membrane was performed at 49 extraction sockets (one per patient). Volunteers were assigned to implant placement at three different time points of 2, 4, and 6 months, at which time core biopsies were obtained. Histomorphometric analysis was performed to determine the percentages of vital bone, residual graft particles, and connective tissue/other non‐bone components, and subjected to statistical analyses. Results There was a statistically significant difference in the amount of vital bone at every time point from 28.31% to 40.87% to 64.11% (at 2‐, 4‐, and 6‐month groups, respectively) (P