Clinical trials: Polytetrafluoroethylene
Bone Regeneration, Dental Implants
Effectiveness of Different Membrane Applications in Vertical Ridge Augmentation
This randomized clinical trial (RCT) study investigates if there is any difference in absolute vertical bone gain between perforated dense-polytetrafluroethylene (d-PTFE) mesh vs perforated d-PTFE mesh covered with a native…
- Conditions
- Bone Regeneration, Dental Implants, Polytetrafluoroethylene
- Trial name
- NCT04843488
- Testing
- Guided bone regeneration with a PTFE membrane, Guided bone regeneration with a PTFE+collagen membrane
- Where
- Hungary
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Urban Regeneration Institute
Alveolar Bone Loss
Composite Plug Vs D-PTFE Membrane in Socket Preservation
The aim of the current study is to compare the effect socket sealing with flowable resin composite compared to dense polytetrafluoroethylene membrane after filling the extraction site with xenograft particles in terms of soft and…
- Trial name
- NCT06315413
- Testing
- Socket preservation using xenograft and composite plug, Socket preservation using xenograft and intentionally exposed d-PTFE
- Where
- Egypt
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Cairo University
Microbiology, Alveolar Ridge Preservation
Microbiome Analysis of Dental Biofilm on High-Density Polytetrafluoroethylene Membranes Used in Socket Preservation
The goal of this clinical trial is to evaluate how different types of high-density polytetrafluoroethylene (d-PTFE) membranes impact dental biofilm accumulation and composition in patients undergoing socket preservation following…
- Conditions
- Microbiology, Alveolar Ridge Preservation, Infections, Bacterial
- Trial name
- MADBioS (NCT06694844)
- Testing
- Socket preservation with M1, Socket preservation with M2
- Where
- Croatia
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Marija Čandrlić
The Apparatus for Processing the Tubular Graft Modification Will be Designed and Evaluated., The On-site Capturing of the Endothelial (Progenitor) Cells by Peptide-mediated Selective Adhesion in Vitro and in Vivo Will Also be Elucidated.
Endothelialized ePTFE Graft by Nanobiotechnology
The replacement of autologous blood vessels by artificial grafts is urgently needed in clinical applications. Expanded polytetrafluoroethylene (ePTFE) grafts are the most clinically used artificial blood vessels because of its…
- Conditions
- The Apparatus for Processing the Tubular Graft Modification Will be Designed and Evaluated., The On-site Capturing of the Endothelial (Progenitor) Cells by Peptide-mediated Selective Adhesion in Vitro and in Vivo Will Also be Elucidated., The Patency Rate of ITRI-made Artificial Blood Vessels Will be Evaluated by the Porcine Animal Model.
- Trial name
- NCT02002104
- Where
- Taiwan
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Alveolar Bone Loss, Pathological Conditions, Anatomical
Comparison of Amnion Chorion Membrane vs. Dense Polytetrafluoroethylene Membrane in Ridge Preservation Procedures
The purpose of this study is to examine if a biologically active commercially available amnion chorion membrane (ACM) is as effective as the commercially available inert dense polytetrafluoroethylene membrane (D-PTFE) in…
- Trial name
- NCT02602223
- Testing
- Placing Amnion chorion membrane over grafted site, Placing d-PTFE membrane over grafted site
- Volunteers
- 9 people, healthy volunteers welcome
- Sponsor
- Indiana University
Nasal Synechiae, Adhesions of Nasal Cavity
Study of Mitomycin C and Nasal Splint to Treat Nasal Synechiae
This study evaluates whether Mitomycin C is an effective alternative to septal splints in the treatment of nasal synechiae.
- Conditions
- Nasal Synechiae, Adhesions of Nasal Cavity, Nasal Adhesions, Tissue Adhesions
- Trial name
- NCT00966056
- Testing
- Mitomycin C, Teflon nasal septal splint
- Where
- India
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Karnataka Institute of Medical Sciences
Aphakia, Acquired
Scleral Fixation of BunnyLens With GoreTex Suture- Initial Results
This study evaluates the Visual Acuity and refraction of patients post 4-point Scleral fixation of BunnyLens (Intra Ocular Lens- IOL) with GoreTex sutures.
- Trial name
- NCT03437434
- Testing
- Visual Acuity
- Where
- Israel
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- DAVID HAUSER
Gingival Pocket
Gingival Displacement by Polytetrafluoroethylene & Conventional Retraction Cord
To achieve harmony between restoration and surrounding periodontium, soft tissue management plays a pivotal role. Various Gingival displacement techniques show varying results in achieving the goals of displacement.
- Trial name
- NCT04087226
- Testing
- PTFE Retraction Cord
- Where
- Pakistan
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Dow University of Health Sciences
Vascular Access for Hemodialysis and Inflammation
Vascular Access for Hemodialysis and Inflammation
The aim of the present study was to investigate patients free of active infection and/or thrombosis to assess if the type of vascular access (AVF, AVG, TCC), could influence: 1.
- Trial name
- NCT00850707
- Where
- Italy
- Volunteers
- 458 people, healthy volunteers welcome
- Sponsor
- IRCCS Azienda Ospedaliero-Universitaria di Bologna
Alveolar Bone Loss, Tooth Loss
Changes of Soft and Hard Tissues After Alveolar Ridge Preservation: Freeze-dried Bone Allograft vs. L-PRF Clot
A Clinical Trial to study the effectiveness between two, tooth socket grafting materials namely, Freeze Dried Bone Allograft (human derived bone particles) and Leukocytic-Platelet Rich Fibrin (the patient's own centrifuged…
- Trial name
- NCT03331185
- Testing
- Freeze Dried Bone Allograft, L-PRF clot
- Where
- Canada
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- University of Manitoba
Alveolar Ridge Preservation, Tooth Loss
Volumetric Efficacy of Alveolar Ridge Preservation
The goal of this clinical trial is to compare the effectiveness of four post-extraction socket management approaches in preserving alveolar ridge dimensions following tooth extraction in adults requiring implant-supported…
- Conditions
- Alveolar Ridge Preservation, Tooth Loss, Tooth Extraction, Tooth Extraction Site Healing
- Trial name
- ARP (NCT07812883)
- Testing
- Spontaneous Healing, d-PTFE Membrane, Leukocyte- and Platelet-Rich Fibrin (L-PRF)
- Where
- Chile
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Universidad del Desarrollo
Surface Roughness, Maintenance of Dental Implants
Comparison of the Effect of Teflon vs Non-Teflon Hand Scalers in the Maintenance of Peri-Implant Tissue
The buccal and lingual surface of the 23 participants' crowns will be randomly assigned to receive scaling and root planing with either Teflon scalers, or non-Teflon scalers after implant crown delivery.
- Conditions
- Surface Roughness, Maintenance of Dental Implants, Inflammation
- Trial name
- NCT03316937
- Testing
- Types of scalers
- Where
- Canada
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- University of Manitoba
Alveolar Bone Loss, Posterior Mandible
Khoury's Bone Shell Technique Versus Titanium-Reinforced Polytetrafluoroethylene for Augmentation of Horizontal Deficiency in Posterior Mandible (Histomorphometry Analysis)
The purpose of the study is the comparison of bone gained histologically from the Bone Shell Khoury's Technique in comparison with the usage of non-resorbable membrane polytetrafluoroethylene and discussing its eligibility for…
- Trial name
- NCT07669792
- Testing
- GBR using Ti based PTFE, Bone Shell Khoury's Technique
- Where
- Egypt
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- British University In Egypt
Blood Loss, Surgical, Transfusion Rate
Effect of Electrosurgery on Blood Loss and Intraoperative Transfusions in Musculoskeletal Tumor Surgery
Resection of malign musculoskeletal tumors and reconstruction with large tumor prostheses often results in relevant blood loss requiring hemodynamic stabilization and transfusion.
- Conditions
- Blood Loss, Surgical, Transfusion Rate, Electrosurgery, Tumororthopaedics
- Trial name
- NCT05164809
- Testing
- Application of novel electrodes
- Where
- Germany
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- University Hospital Muenster
Horizontal Alveolar Bone Defect, Guided Bone Regeneration
Guided Bone Regeneration in Lower Posterior Edentulous Arch Using Resorbable or Non Resorbable Membrane.
the purpose of this study is to compare the efficiency of non-resorbable membrane versus resorbable membrane in guided bone regeneration in atrophic posterior mandible.
- Trial name
- NCT07254494
- Testing
- guided bone regeneration using Resorbable membrane pericardium, guided bone regeneration using non resorbable ptfe membrane
- Where
- Lebanon
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Beirut Arab University
Alveolar Ridge Preservation, Tooth Extraction
A 14 Weeks Longitudinal Study to Investigate the Effect of Leukocyte- Platelet Rich Fibrin Plug on the Quality of the Newly Formed Bone in Ridge Preservation Procedure Following a Tooth Extraction. It is a Clinical, Radiographic and Histomorphometric Study.
This 14 weeks longitudinal study will be conducted from March 2018 to June 2020, with a 40 participants. No subjects has received placebo medication at any point in the research procedures.
- Trial name
- NCT03487718
- Testing
- Leukocyte platelet rich fibrin plug + d-PTFE membrane, d-PTFE membrane
- Where
- United States
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- Firas Al Yafi
Alveolar Bone Loss
Efficacy of Customized Zirconia Sheet vs PTFE as a Non-resorbable Barrier in Maxillary Alveolar Ridge Augmentation
The goal of this clinical trial is comparing the efficacy of custom-made zirconia sheet versus Polytetrafluoroethylene as a non-resorbable barrier in maxillary alveolar ridge augmentation.
- Trial name
- NCT06227455
- Testing
- Maxillary alveolar ridge augmentation
- Where
- Egypt
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Delta University for Science and Technology
Wound Closure
Comparison of Cyanoacrylate Adhesives to Sutures in the Palate After Connective Tissue Graft
Cyanoacrylate tissue adhesives have been successfully used for wound closure. The purpose of this clinical trial is to compare cyanoacrylate tissue adhesives to polytetrafluoroethylene (PTFE) sutures in the donor site of…
- Trial name
- NCT02935426
- Testing
- n-butyl cyanoacrylate and 2-octyl cyanoacrylate, 5-0 Polytetrafluoroethylene (PTFE) suture
- Where
- Canada
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- University of Manitoba