Mehlbauer, M J Improved closure rate of Class III furcations using a layered GTR technique. [electronic resource] - The International journal of periodontics & restorative dentistry Jun 2000 - 285-95 p. digital Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial ISSN: 0198-7569 Subjects--Topical Terms: Absorbable ImplantsAdultAgedBone Transplantation--methodsCitratesDouble-Blind MethodFemaleFurcation Defects--surgeryGuided Tissue Regeneration, Periodontal--methodsHumansMaleMembranes, ArtificialMiddle AgedPeriodontal IndexPolyestersPolyglactin 910Smoking--adverse effectsTreatment OutcomeWound Healing