{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,19]],"date-time":"2026-10-19T23:05:23Z","timestamp":1792451123671,"version":"4.5.0"},"reference-count":19,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2023,8,16]],"date-time":"2023-08-16T00:00:00Z","timestamp":1692144000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Clin Implant Dent Rel Res"],"published-print":{"date-parts":[[2023,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>To evaluate radiographic bone gain after alveolar ridge augmentation with two different designs of autogenous block graft harvested from the mandible.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>Alveolar ridge defects were evaluated by preoperative cone beam computed tomography (CBCT) and grafted in a staged approach using intraoral block grafts. The ridge augmentation was either performed using the full\u2010block technique (group 1) or the split\u2010block technique (cortical plate with autogenous bone chips) (group 2). After 4\u2009months of bone healing, a further CBCT scan was performed before implant placement. Horizontal and vertical bone gain were measured.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>In this retrospective study, 91 patients were grafted with block grafts (36 patients with full\u2010block grafts; 55 patients with split\u2010block grafts) resulting in 171 block grafts in total. The mean horizontal bone gain was 3.37\u2009\u00b1\u20090.71\u2009mm in group 1 and 5.79\u2009\u00b1\u20092.20\u2009mm in group 2. A linear mixed\u2010effect model also showed a statistically significant group difference (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001, estimate: 3.455, 95% CI: [2.082\u20134.829]). The mean vertical bone gain was 2.85\u2009\u00b1\u20090.73\u2009mm in group 1 and 7.60\u2009\u00b1\u20091.87\u2009mm in group 2. A linear mixed\u2010effect model also showed a statistically significant group difference (<jats:italic>p<\/jats:italic>: 0.029, estimate: 3.126, 95% CI: [0.718\u20135.557]). Mean marginal bone level was 0.33\u2009\u00b1\u20090.37\u2009mm (group 1) and 0.17\u2009\u00b1\u20090.29\u2009mm (group 2).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The split\u2010block technique resulted in a greater bone gain than the full\u2010block technique. This effect was observed in both the vertical and the horizontal dimensions.<\/jats:p><\/jats:sec>","DOI":"10.1111\/cid.13263","type":"journal-article","created":{"date-parts":[[2023,8,16]],"date-time":"2023-08-16T16:16:44Z","timestamp":1692202604000},"page":"1149-1163","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Full block or split block?\u2014Comparison of two different autogenous block grafting techniques for alveolar ridge reconstruction"],"prefix":"10.1111","volume":"25","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6305-364X","authenticated-orcid":false,"given":"Christian","family":"Mertens","sequence":"first","affiliation":[{"name":"Department of Oral and Cranio\u2010Maxillofacial Surgery Heidelberg University Hospital  Heidelberg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2664-7147","authenticated-orcid":false,"given":"Christopher","family":"B\u00fcsch","sequence":"additional","affiliation":[{"name":"Institute of Medical Biometry University of Heidelberg  Heidelberg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Konrad","family":"Goldenbaum","sequence":"additional","affiliation":[{"name":"Institute of Medical Biometry University of Heidelberg  Heidelberg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Oliver","family":"Ristow","sequence":"additional","affiliation":[{"name":"Department of Oral and Cranio\u2010Maxillofacial Surgery Heidelberg University Hospital  Heidelberg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1322-755X","authenticated-orcid":false,"given":"J\u00fcrgen","family":"Hoffmann","sequence":"additional","affiliation":[{"name":"Department of Oral and Cranio\u2010Maxillofacial Surgery Heidelberg University Hospital  Heidelberg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4238-1799","authenticated-orcid":false,"given":"Hom\u2010Lay","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Periodontics and Oral Medicine University of Michigan, School of Dentistry  Ann Arbor Michigan USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Korbinian Jochen","family":"Hoffmann","sequence":"additional","affiliation":[{"name":"Department of Oral and Cranio\u2010Maxillofacial Surgery Heidelberg University Hospital  Heidelberg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2023,8,16]]},"reference":[{"key":"e_1_2_11_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcms.2016.07.028"},{"key":"e_1_2_11_3_1","doi-asserted-by":"publisher","DOI":"10.11607\/jomi.4416"},{"key":"e_1_2_11_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1708\u20108208.2003.tb00197.x"},{"key":"e_1_2_11_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600\u20100501.2010.02093.x"},{"issue":"1","key":"e_1_2_11_6_1","first-page":"19","article-title":"Reduction of autogenous bone graft resorption by means of bio\u2010oss coverage: a prospective study","volume":"25","author":"Maiorana C","year":"2005","journal-title":"Int J Periodontics Restorative 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