{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T23:30:24Z","timestamp":1791243024919,"version":"4.1.0"},"reference-count":56,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2021,6,23]],"date-time":"2021-06-23T00:00:00Z","timestamp":1624406400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Clin Implant Dent Rel Res"],"published-print":{"date-parts":[[2021,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Alveolar ridge preservation can effectively decrease alveolar ridge resorption following tooth extraction, but it can be limited by reducing new bone formation and residual bone graft material. Efforts to develop more efficacious approaches are thus an area of active research.<\/jats:p><\/jats:sec><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To assess the impact of autologous concentrated growth factors (CGF) on alveolar ridge absorption and osteogenesis following posterior tooth extraction.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and methods<\/jats:title><jats:p>Fifty patients were randomly assigned to have extraction sockets treated with CGF or no treatment. At 10\u2009days, 1\u2009month, and 3\u2009months postextraction, soft tissue color and texture were examined and evaluated with healing score. Cone\u2010beam computed tomography (CBCT) scans were performed before and 3\u2009months after extraction, while radiographic analyses were used to assess vertical and horizontal bone changes. Bone samples were collected from the extraction sockets during implant placement, and micro\u2010computed tomography (micro\u2010CT) scans and histological analysis were performed to evaluate new bone formation. <jats:italic>t<\/jats:italic>\u2010Test or Mann\u2013Whitney <jats:italic>U<\/jats:italic> test was used to compare data and the level of statistical significance was set at 0.05 for all analyses.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Forty\u2010six patients completed the trial. Sockets in the experimental group exhibited significantly better healing score on Day 10 postextraction relative to the control group, whereas comparable healing was observed in both groups at 1 and 3\u2009months postextraction. Experimental group exhibited reduced vertical bone changes relative to the control (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.05). Significant reductions were observed in ridge width changes at 1 and 2\u2009mm apical to the crest (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.05), although differences at 3 and 5\u2009mm apical to the crest were not significant. Significant differences of bone mineral density (BMD) and microarchitecture of trabecular bone were observed via micro\u2010CT analyses, and the experimental group had better results.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>CGF application following posterior tooth extraction may reduce vertical and horizontal bone resorption and promote new bone formation.<\/jats:p><\/jats:sec>","DOI":"10.1111\/cid.13026","type":"journal-article","created":{"date-parts":[[2021,6,23]],"date-time":"2021-06-23T07:22:13Z","timestamp":1624432933000},"page":"579-592","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":33,"title":["The impact of autologous concentrated growth factors on the alveolar ridge preservation after posterior tooth extraction: A prospective, randomized controlled clinical trial"],"prefix":"10.1111","volume":"23","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3319-9880","authenticated-orcid":false,"given":"Feifei","family":"Ma","sequence":"first","affiliation":[{"name":"Department of Oral Implantology Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases &amp; National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology  Beijing China"},{"name":"First Clinical Division Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases &amp; National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ye","family":"Lin","sequence":"additional","affiliation":[{"name":"Department of Oral Implantology Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases &amp; National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Feng","family":"Sun","sequence":"additional","affiliation":[{"name":"First Clinical Division Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases &amp; National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xi","family":"Jiang","sequence":"additional","affiliation":[{"name":"Department of Oral Implantology Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases &amp; National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tai","family":"Wei","sequence":"additional","affiliation":[{"name":"First Clinical Division Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases &amp; National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology  Beijing 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