{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T15:01:37Z","timestamp":1790262097883,"version":"4.1.0"},"reference-count":40,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2018,11,5]],"date-time":"2018-11-05T00:00:00Z","timestamp":1541376000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"VHS Medical Center Research","award":["VHSMC18015"],"award-info":[{"award-number":["VHSMC18015"]}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Clin Implant Dent Rel Res"],"published-print":{"date-parts":[[2019,2]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Various approaches are used for alveolar ridge preservation (ARP); however, there is no standard method or material.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To investigate the effect of ARP with a dense polytetrafluoroethylene (d\u2010PTFE) membrane and freeze\u2010dried irradiated allogenic bone for sockets with bone deficiency.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and Methods<\/jats:title>\n                    <jats:p>Thirty\u2010four patients (with sockets exhibiting \u22653 mm hard tissue loss in \u22651 walls) were randomized to undergo natural socket healing (control) or ARP with a d\u2010PTFE membrane and freeze\u2010dried irradiated allogenic bone (test group). After 4 months, horizontal and vertical ridge changes were measured using cone beam computed tomography.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Ridge width at l mm below the ridge crest demonstrated significantly less change in the test group (median\u2009=2.3; Q1\u2009=\u20090.6; Q3\u2009=\u20094.3 mm) than in the control group (median\u2009=3.9; Q1\u2009=2.6; Q3\u2009=\u20097.8 mm;\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u2009.021). There was no significant difference between the two groups in horizontal ridge changes at 3 and 5 mm below the crest or vertical changes (\n                      <jats:italic>P\u2009&gt;<\/jats:italic>\n                      .05). Requirement for bone augmentation at implant placement was significantly reduced in the test group compared to the control group (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&lt;\u2009.001).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>ARP with a d\u2010PTFE membrane and freeze\u2010dried irradiated allogenic bone substitute reduced horizontal bone resorption in sockets with bone deficiency.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/cid.12668","type":"journal-article","created":{"date-parts":[[2018,11,5]],"date-time":"2018-11-05T08:39:31Z","timestamp":1541407171000},"page":"175-182","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":41,"title":["Alveolar ridge preservation using an open membrane approach for sockets with bone deficiency: A randomized controlled clinical trial"],"prefix":"10.1111","volume":"21","author":[{"given":"Dong\u2010Joo","family":"Sun","sequence":"first","affiliation":[{"name":"Department of Periodontology Veterans Health Service Medical Center Seoul Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hyun\u2010Chang","family":"Lim","sequence":"additional","affiliation":[{"name":"Department of Periodontology School of Dentistry, Kyung Hee University Seoul Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0796-9100","authenticated-orcid":false,"given":"Dong\u2010Woon","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Periodontology Veterans Health Service Medical Center Seoul Republic of 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