(70) Effect of d-PTFE Membrane Surface on Soft and Hard Tissue Healing in Ridge Preservation- A Case Report

Introduction: The use of barrier membranes has been shown to aid in the maintenance of ridge dimension when used in conjunction with bone graft in extraction sockets. The objective of this case study is to document the soft and hard tissue healing after ridge preservation procedure using two different high-density polytetrafluoroethylene (d-PTFE) membranes.

Methods: A sixty-year old patient requiring extraction of lower right first and second molar and ridge preservation underwent the procedure as follows. Both molars were surgically extracted with minimal trauma to the alveolar bone. A 50-50 freeze-dried corticocancellous bone allograft (FDBA) was placed in the extraction sockets followed by placement of texture surface d-PTFE membrane in first molar site and smooth surface d-PTFE membrane in second molar site.
At the fourth week post-operative visit, prior to the removal of the membrane, and in 16-week follow-up visit, cone-beam computed tomography (CBCT) and intra-oral scans would be performed. Only intra-oral scans will be obtained at 8 & 12 weeks. For each site, four peripheral coordinates on alveolar bone (MB, ML, DB, DL) and two diagonal bisecting coordinates will be recorded. Soft and hard tissue dimensional changes will be measured by image overlay during the follow-up visits.

Results: Results will be available in August 2022 and will be presented at the annual meeting.

Conclusions: Any difference or lack of difference between the two surfaces of d-PTFE membranes in soft and hard tissue dimensional changes after complete healing of ridge preservation, and its clinical implications will be presented.

Lead Author's Contributions to the Research Project. : The lead author was responsible for the data collection, composition of abstract, and future data analysis.