title: A combined endodontic retrofill and periodontal guided tissue regeneration technique for the repair of molar endodontic furcation perforations: report of a case.
abstract: This is a report of a case in which the techniques of endodontic retrofill and guided tissue regeneration were used together to treat a perforation of the mesiofacial root of a maxillary left first molar (a strip perforation). After full-thickness flap reflection, the root received a retrograde filling and a large fenestration defect was surgically created to allow access to the furcal (distal) surface of the mesiofacial root. The roots were treated with tetracycline, the defect was filled with freeze-dried, demineralized, irradiated human cadaver bone, and the access fenestration was covered with a piece of barrier membrane. Healing was uneventful and the defect showed 100% bone fill at the time of reentry to retrieve the membrane 7 months after the initial surgery. Fifteen months after surgery the area appears clinically and radiographically healthy and the tooth has been employed as an abutment for a fixed partial denture.
authors.affiliation: Department of Periodontics, University of Mississippi Medical Center, Jackson 39216.
authors.forename: L D
authors.initials: LD
authors.lastname: Duggins
authors.forename: J R
authors.initials: JR
authors.lastname: Clay
authors.forename: V T
authors.initials: VT
authors.lastname: Himel
authors.forename: J W
authors.initials: JW
authors.lastname: Dean
mesh_terms: D000328:Adult; D003786:Dental Pulp Cavity / Q000293:injuries; D016557:Guided Tissue Regeneration, Periodontal; D006801:Humans; D008297:Male; D008963:Molar / Q000293:injuries*; D012184:Retrograde Obturation; D012390:Root Canal Therapy / Q000009:adverse effects*; D014092:Tooth Root / Q000293:injuries*