{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T13:07:50Z","timestamp":1780492070134,"version":"3.54.1"},"reference-count":28,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2021,6,6]],"date-time":"2021-06-06T00:00:00Z","timestamp":1622937600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Clinical &amp; Exp Dental Res"],"published-print":{"date-parts":[[2021,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objectives<\/jats:title><jats:p>To examine ridge dimensional changes and histologic parameters of healing when ridge preservation (RP) was performed at molar sites using dense polytetrafluoroethylene (dPTFE) membrane alone, without a bone graft.<\/jats:p><\/jats:sec><jats:sec><jats:title>Material and Methods<\/jats:title><jats:p>Eighteen patients had molar extraction and RP using dPTFE membrane alone. Ridge dimensions were measured using two standardized cone beam computerized tomography (CBCT) scans taken within 72\u2009h and 3\u00a0months following extraction. Following a 3\u2010month healing period, an implant osteotomy was prepared using a trephine drill and bone cores were collected for histological analysis. Four\u2010arm analyses were performed using data from three previously published study arms of the same research group.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>There was a significant change in the buccal ridge height between the four groups at all aspects of the socket. Alveolar ridge width reduction at 3\u2009mm from crest for all aspects (mesial, midpoint, distal) of the socket showed statistically significant difference for dPTFE alone group compared to the other three groups. Percentage of vital bone formation (62.10%) was significantly greater in dPTFE alone group compared to the other groups.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>RP using dPTFE membrane alone in molar sites with intact socket walls showed successful outcomes in maintaining ridge dimensions and in histologic wound healing.<\/jats:p><\/jats:sec>","DOI":"10.1002\/cre2.459","type":"journal-article","created":{"date-parts":[[2021,6,7]],"date-time":"2021-06-07T12:51:37Z","timestamp":1623070297000},"page":"1103-1111","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Evaluation of healing at molar extraction sites with ridge preservation using a non\u2010resorbable dense polytetrafluoroethylene membrane: A four\u2010arm cohort prospective study"],"prefix":"10.1002","volume":"7","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6550-1880","authenticated-orcid":false,"given":"Arwa M.","family":"Al Hugail","sequence":"first","affiliation":[{"name":"Department of Periodontics UT Health San Antonio  San Antonio Texas USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brian L.","family":"Mealey","sequence":"additional","affiliation":[{"name":"Department of Periodontics UT Health San Antonio  San Antonio Texas USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christopher","family":"Walker","sequence":"additional","affiliation":[{"name":"Department of Periodontics UT Health San Antonio  San Antonio Texas USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4750-3583","authenticated-orcid":false,"given":"Shaimaa","family":"Al Harthi","sequence":"additional","affiliation":[{"name":"Department of Periodontics UT Health San Antonio  San Antonio Texas USA"},{"name":"Taif University  Saudi Arabia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mylinh","family":"Duong","sequence":"additional","affiliation":[{"name":"Department of Periodontics UT Health San Antonio  San Antonio Texas USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marcel","family":"Noujeim","sequence":"additional","affiliation":[{"name":"Private Consultant, Department of Comprehensive Dentistry  San Antonio Texas USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David J.","family":"Lasho","sequence":"additional","affiliation":[{"name":"Department of Periodontics UT Health San Antonio  San Antonio Texas USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas J.","family":"Prihoda","sequence":"additional","affiliation":[{"name":"Department of Pathology UT Health San Antonio  San Antonio Texas USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guy","family":"Huynh\u2010Ba","sequence":"additional","affiliation":[{"name":"Department of Periodontics UT Health San Antonio  San Antonio Texas USA"},{"name":"Private Practice  Seattle Washington USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2021,6,6]]},"reference":[{"key":"e_1_2_11_2_1","doi-asserted-by":"publisher","DOI":"10.11607\/jomi.7243"},{"key":"e_1_2_11_3_1","doi-asserted-by":"publisher","DOI":"10.14219\/jada.archive.1960.0152"},{"key":"e_1_2_11_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0501.2009.01705.x"},{"issue":"5","key":"e_1_2_11_5_1","first-page":"CD010176","article-title":"Interventions for replacing missing teeth: Alveolar ridge preservation techniques for dental implant site development","volume":"2015","author":"Atieh M. 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