{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,28]],"date-time":"2026-06-28T23:27:54Z","timestamp":1782689274873,"version":"3.54.5"},"reference-count":0,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[1993,8,1]],"date-time":"1993-08-01T00:00:00Z","timestamp":744163200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Periodontology"],"published-print":{"date-parts":[[1993,8]]},"abstract":"<jats:p>T<jats:sc>wenty\u2010six proximal, intrabony periodontal defects<\/jats:sc> with probing depths equal to or exceeding 6 mm in 23 patients were treated with gingival flap surgery supported by an expanded polytetrafluoroethylene barrier membrane. The material included 1, 2, and 3\u2010wall defects with crestal involvement relative to the root circumference ranging between 90\u00b0 and 270\u00b0. Healing was evaluated clinically 12 months after surgery. Deep defects exhibited greater probing depth reduction and attachment gain than shallower defects. Probing depth reduction, attachment gain, and bone fill were positively correlated to the depth of the 3\u2010wall intrabony component of the defect. The extent of crestal involvement, and wall form in the fundus of the defect did not appear to influence the healing response. The treatment also affected the proximal surface of the defect\u2010adjacent tooth, which showed some reduction in bone level as well as gingival recession. Thus, the overall healing pattern following barrier membrane\u2010supported flap surgery appears similar to that generally observed for conventional reconstructive flap surgery in intrabony periodontal defects. <jats:italic>J Periodontol 1993; 64:730\u2013733<\/jats:italic>.<\/jats:p>","DOI":"10.1902\/jop.1993.64.8.730","type":"journal-article","created":{"date-parts":[[2012,3,21]],"date-time":"2012-03-21T21:28:40Z","timestamp":1332365320000},"page":"730-733","source":"Crossref","is-referenced-by-count":56,"title":["Surgical Treatment of Intrabony Periodontal Defects Using Expanded Polytetrafluoroethylene Barrier Membranes: Influence of Defect Configuration on Healing Response"],"prefix":"10.1002","volume":"64","author":[{"given":"Knut A.","family":"Selvig","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Betty G.","family":"Kersten","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ulf M.E.","family":"Wikesj\u00f6","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[1993,8]]},"container-title":["Journal of Periodontology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/aap.onlinelibrary.wiley.com\/doi\/pdf\/10.1902\/jop.1993.64.8.730","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,19]],"date-time":"2025-10-19T12:09:24Z","timestamp":1760875764000},"score":1,"resource":{"primary":{"URL":"https:\/\/aap.onlinelibrary.wiley.com\/doi\/10.1902\/jop.1993.64.8.730"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1993,8]]},"references-count":0,"journal-issue":{"issue":"8","published-print":{"date-parts":[[1993,8]]}},"alternative-id":["10.1902\/jop.1993.64.8.730"],"URL":"https:\/\/doi.org\/10.1902\/jop.1993.64.8.730","archive":["Portico"],"relation":{},"ISSN":["0022-3492","1943-3670"],"issn-type":[{"value":"0022-3492","type":"print"},{"value":"1943-3670","type":"electronic"}],"subject":[],"published":{"date-parts":[[1993,8]]}}}