title: Guided tissue regeneration around dental implants in immediate extraction sockets: comparison of e-PTFE and a new titanium membrane.
abstract: To evaluate the efficacy of guided tissue regeneration around exposed implant threads, 16 implants were placed into fresh extraction sockets in beagle dogs. Polytetrafluoroethylene (e-PTFE) membranes and titanium membranes were used to cover the defects around implants. A control group did not receive any membranes. Results were evaluated histologically. The average gain in bone height was 2.1 mm for e-PTFE sites, 0.8 mm for titanium membranes, and 2.9 mm for control sites. The greatest gain in bone levels was seen for two sites that received e-PTFE membranes and remained covered for the entire evaluation interval. Within the limits of this study, clinical and histologic evidence demonstrated that, when primary coverage is maintained, the use of e-PTFE membranes can significantly enhance bone regeneration around implants.
authors.affiliation: Department of Periodontology, University of Paris, France.
authors.forename: R
authors.initials: R
authors.lastname: Celletti
authors.forename: M
authors.initials: M
authors.lastname: Davarpanah
authors.forename: D
authors.initials: D
authors.lastname: Etienne
authors.forename: G
authors.initials: G
authors.lastname: Pecora
authors.forename: J F
authors.initials: JF
authors.lastname: Tecucianu
authors.forename: D
authors.initials: D
authors.lastname: Djukanovic
authors.forename: K
authors.initials: K
authors.lastname: Donath
mesh_terms: D016301:Alveolar Bone Loss / Q000601:surgery*; D000540:Alveolar Ridge Augmentation / Q000379:methods*; D000704:Analysis of Variance; D000818:Animals; D001861:Bone Regeneration; D003758:Dental Implantation, Endosseous / Q000379:methods*; D015921:Dental Implants; D004285:Dogs; D016557:Guided Tissue Regeneration, Periodontal; D008567:Membranes, Artificial; D011138:Polytetrafluoroethylene; D014025:Titanium; D014081:Tooth Extraction
chemical_list: D015921:Dental Implants; D008567:Membranes, Artificial; D011138:Polytetrafluoroethylene; D014025:Titanium