{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T23:28:48Z","timestamp":1777591728406,"version":"3.51.4"},"reference-count":69,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2013,4,8]],"date-time":"2013-04-08T00:00:00Z","timestamp":1365379200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Clinical Oral Implants Res"],"published-print":{"date-parts":[[2014,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objectives<\/jats:title><jats:p>The objectives of this study were to propose a classification for the bone defects resulting after extraction of a vertically fractured tooth and to review the existing literature about the treatment of such kind of defects by means of dental implants in combination with regenerative procedures.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and methods<\/jats:title><jats:p>An electronic search was performed on biomedical databases using a combination of appropriated search terms combined through the use of <jats:styled-content style=\"fixed-case\">B<\/jats:styled-content>oolean operators. All articles concerning the treatment of peri\u2010implant bone dehiscences and fenestrations through guided bone regeneration (<jats:styled-content style=\"fixed-case\">GBR<\/jats:styled-content>) with at least 6\u00a0months follow\u2010up were eligible. Outcomes data extracted from the selected articles were summarized using descriptive tables. A classification of the bone defects associated with vertical root fracture (<jats:styled-content style=\"fixed-case\">VRF<\/jats:styled-content>) was also proposed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A total of 33 articles were included in the review. Twenty\u2010three articles (814 implants) were about bone dehiscence treatment, ten articles presented the treatment of fenestrations, and ten (429 implants) adopted vertical bone augmentation. The percentage of bone filling was variable among different procedures and defect classification. The use of resorbable membrane was associated with better outcomes than the use of non\u2010resorbable ones.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Guided bone regeneration for the management of bone defects in the presence of a <jats:styled-content style=\"fixed-case\">VRF<\/jats:styled-content> of the extracted tooth is a viable treatment option. The assessment of bone defect geometry prior to a tooth extraction could be clinically relevant for evaluating the feasibility and the success of immediate implant placement as well as the need of <jats:styled-content style=\"fixed-case\">GBR<\/jats:styled-content>.<\/jats:p><\/jats:sec>","DOI":"10.1111\/clr.12164","type":"journal-article","created":{"date-parts":[[2013,4,8]],"date-time":"2013-04-08T08:59:21Z","timestamp":1365411561000},"page":"946-956","source":"Crossref","is-referenced-by-count":20,"title":["Implant treatment choice after extraction of a vertically fractured tooth. A proposal for a clinical classification of bony defects based on a systematic review of literature"],"prefix":"10.1111","volume":"25","author":[{"given":"Stefano","family":"Corbella","sequence":"first","affiliation":[{"name":"Dental Clinic Department of Biomedical, Surgical and Dental Sciences IRCCS Istituto Ortopedico Galeazzi Universit\u00e0 degli Studi di Milano Milan Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Silvio","family":"Taschieri","sequence":"additional","affiliation":[{"name":"Dental Clinic Department of Biomedical, Surgical and Dental Sciences IRCCS Istituto Ortopedico Galeazzi Universit\u00e0 degli Studi di Milano Milan Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lakshman","family":"Samaranayake","sequence":"additional","affiliation":[{"name":"Faculty of Dentistry University of Hong Kong Hong Kong China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Igor","family":"Tsesis","sequence":"additional","affiliation":[{"name":"Department of Endodontology Maurice and Gabriela Goldschleger School of Dental Medicine Tel Aviv Israel"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Carlos","family":"Nemcovsky","sequence":"additional","affiliation":[{"name":"Department of Periodontology and Dental Implantology Maurice and Gabriela Goldschleger School of Dental Medicine Tel Aviv Israel"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Massimo","family":"Del Fabbro","sequence":"additional","affiliation":[{"name":"Dental Clinic Department of Biomedical, Surgical and Dental Sciences IRCCS Istituto Ortopedico Galeazzi Universit\u00e0 degli Studi di Milano Milan Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2013,4,8]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1034\/j.1600-0501.1999.100104.x"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1708-8208.1999.tb00088.x"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0501.2005.01106.x"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1902\/jop.2008.080071"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1902\/jop.2009.080360"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1902\/jop.2010.100408"},{"key":"e_1_2_7_8_1","first-page":"858","article-title":"Vertical ridge augmentation around implants by e\u2010PTFE titanium\u2010reinforced membrane and bovine bone matrix: a 24\u2010 to 54\u2010month study of 10 consecutive cases","volume":"23","author":"Canullo L.","year":"2008","journal-title":"International Journal of Oral and Maxillofacial Implants"},{"key":"e_1_2_7_9_1","first-page":"59","article-title":"Early implant loading after vertical ridge augmentation (VRA) using e\u2010PTFE titanium\u2010reinforced membrane and nano\u2010structured hydroxyapatite: 2\u2010year prospective study","volume":"3","author":"Canullo L.","year":"2010","journal-title":"European Journal of Oral Implantology"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/S1079-2104(99)70252-0"},{"key":"e_1_2_7_11_1","first-page":"186","article-title":"Clinical and esthetic outcomes of implants placed in postextraction sites","volume":"24","author":"Chen S.T.","year":"2009","journal-title":"International Journal of Oral and Maxillofacial Implants"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0501.2004.01093.x"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0501.2004.00999.x"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0501.2009.01781.x"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.0905-7161.2003.00963.x"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.joen.2006.07.008"},{"key":"e_1_2_7_17_1","first-page":"312","article-title":"Treatment of fenestration and dehiscence bone defects around oral implants using the guided tissue regeneration technique: a prospective multicenter study","volume":"10","author":"Dahlin C.","year":"1995","journal-title":"International Journal of Oral and Maxillofacial Implants"},{"key":"e_1_2_7_18_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0501.2005.01154.x"},{"key":"e_1_2_7_19_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.joms.2009.04.063"},{"key":"e_1_2_7_20_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-9657.2009.00857.x"},{"key":"e_1_2_7_21_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-051X.2009.01458.x"},{"key":"e_1_2_7_22_1","doi-asserted-by":"publisher","DOI":"10.1097\/ID.0b013e3181813406"},{"key":"e_1_2_7_23_1","first-page":"189","article-title":"Timing of implant placement after tooth extraction: immediate, immediate\u2010delayed or delayed implants? 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