{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T15:01:26Z","timestamp":1790262086591,"version":"4.1.0"},"reference-count":45,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2026,3,24]],"date-time":"2026-03-24T00:00:00Z","timestamp":1774310400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"ARDEC Academy, Italy"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Dentistry Journal"],"abstract":"<jats:p>Background\/Obectives: Alveolar bone resorption after tooth extraction compromises esthetics and implant placement. Conventional alveolar ridge preservation (ARP) relies on grafting. This randomized controlled study evaluated a graft-free, lamina-based approach aimed at preserving ridge morphology by protecting the buccal cortical plate. Methods: Forty alveoli were randomly assigned to Guided Alveolar Ridge Preservation (G-ARP) with a subperiosteally positioned cortical lamina (test) or unassisted healing (control; CTRL). Cone-beam computed tomography (CBCT) was performed before extraction and after five months. Vertical and horizontal dimensional changes were statistically compared. Results: Healing was uneventful. At five months, the G-ARP group showed a vertical gain of 0.5 mm and a horizontal reduction of 0.2 mm, whereas the CTRL group exhibited a vertical loss of 1.7 mm (p &lt; 0.01) and a horizontal loss of 2.7 mm (p &lt; 0.001). Effect sizes were large for vertical change and very large for horizontal change (Hedges\u2019 g = 0.95 and 2.19, respectively). Regeneration occurred through native bone formation without grafts. Conclusions: Subperiosteal placement of a cortical lamina effectively preserved ridge dimensions after extraction. This graft-free approach may offer technical and biological advantages while supporting new bone regeneration.<\/jats:p>","DOI":"10.3390\/dj14040193","type":"journal-article","created":{"date-parts":[[2026,3,25]],"date-time":"2026-03-25T09:11:14Z","timestamp":1774429874000},"page":"193","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Guided Alveolar Ridge Preservation (G-ARP) Using a Cortical Lamina: A Pilot Randomized Controlled Trial"],"prefix":"10.3390","volume":"14","author":[{"given":"Giacomo","family":"Mainetti","sequence":"first","affiliation":[{"name":"ARDEC Academy,  47923 Rimini, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Franco","family":"Bengazi","sequence":"additional","affiliation":[{"name":"ARDEC Academy,  47923 Rimini, Italy"},{"name":"Department Oral Surgery, Faculty of Dentistry, University of Medical Science of La Habana, La Habana 10400, Cuba"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tomaso","family":"Mainetti","sequence":"additional","affiliation":[{"name":"ARDEC Academy,  47923 Rimini, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4565-5222","authenticated-orcid":false,"given":"Karol Al\u00ed","family":"Apaza Alccayhuaman","sequence":"additional","affiliation":[{"name":"ARDEC Academy,  47923 Rimini, Italy"},{"name":"Department of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1345-5250","authenticated-orcid":false,"given":"Andrea","family":"Grassi","sequence":"additional","affiliation":[{"name":"Independent Researcher, 42121 Reggio Emilia, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eddy","family":"Troya Borges","sequence":"additional","affiliation":[{"name":"Department Oral Surgery, Faculty of Dentistry, University of Medical Science of La Habana, La Habana 10400, Cuba"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2804-1632","authenticated-orcid":false,"given":"Daniele","family":"Botticelli","sequence":"additional","affiliation":[{"name":"ARDEC Academy,  47923 Rimini, Italy"},{"name":"Department Oral Surgery, Faculty of Dentistry, University of Medical Science of La Habana, La Habana 10400, Cuba"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,3,24]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"e203","DOI":"10.1097\/SCS.0000000000004263","article-title":"Three-Dimensional Radiological Assessment of Alveolar Bone Volume Preservation Using Bovine Bone Xenograft","volume":"29","author":"Razak","year":"2018","journal-title":"J. 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