{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,24]],"date-time":"2026-01-24T02:24:40Z","timestamp":1769221480692,"version":"3.49.0"},"reference-count":16,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2018,10,11]],"date-time":"2018-10-11T00:00:00Z","timestamp":1539216000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"Dental Implant Research Center, Dental Research Institute, Tehran University of Medical Sciences","award":["1392\/5\/8"],"award-info":[{"award-number":["1392\/5\/8"]}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Clin Implant Dent Rel Res"],"published-print":{"date-parts":[[2018,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Short implants have been proposed as an alternative for the rehabilitation of atrophic edentulous areas.<\/jats:p><\/jats:sec><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To evaluate the efficacy of 4\u2010mm implants vs longer implants in the atrophic posterior mandibles.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>Eleven patients with bilateral atrophic mandibles were rehabilitated with two to four 4\u2010mm implants and 10 or 8\u2010mm long implants in augmented bone using Guided Bone Regeneration procedure. One side of the mandibles was randomly allocated to vertical augmentation with mixed autogenous bone and allograft. Implants were placed in both sides of the mandible after 6\u2009months, and loaded after another 2\u2009months. Subsequently, implant and prosthesis failures, marginal bone levels changes, and any complication were evaluated after 1\u2010year follow\u2010up.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>In this study, one patient dropped out and no failures occurred. However, 4\u2010mm implants loss of 0.30\u2009\u00b1\u20090.34\u2009mm peri\u2010implant marginal bone and long implants loss of 0.47\u2009\u00b1\u20090.54\u2009mm marginal bone were observed after 1\u2010year of follow\u2010up. The difference between the two groups was not statistically significant (difference\u2009=\u2009\u22120.16\u2009\u00b1\u20090.68\u2009mm; <jats:italic>P<\/jats:italic>\u2009=\u20090.46). Eight complications occurred in five augmented sites of the patients, and no complication was found to occur in the short implants sites.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>One\u2010year after loading, 4\u2010mm implants had similar outcomes as long implants in augmented bone. Therefore, short implants might be a feasible treatment in atrophic mandibles.<\/jats:p><\/jats:sec>","DOI":"10.1111\/cid.12672","type":"journal-article","created":{"date-parts":[[2018,10,11]],"date-time":"2018-10-11T12:06:18Z","timestamp":1539259578000},"page":"997-1002","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":26,"title":["Comparing 4\u2010mm dental implants to longer implants placed in augmented bones in the atrophic posterior mandibles: One\u2010year results of a randomized controlled trial"],"prefix":"10.1111","volume":"20","author":[{"given":"Amir Reza","family":"Rokn","sequence":"first","affiliation":[{"name":"Dental Implant Research Center, Dental Research Institute, Department of Periodontics of Dental School Tehran University of Medical Sciences  Tehran Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Abbas","family":"Monzavi","sequence":"additional","affiliation":[{"name":"Dental Research Institute, Department of Prosthodontics of Dental School Tehran University of Medical Sciences  Tehran Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mehrdad","family":"Panjnoush","sequence":"additional","affiliation":[{"name":"Department of Oral and Maxillofacial Radiology School of Dentistry, Tehran University of Medical Sciences  Tehran Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hamid Mahmood","family":"Hashemi","sequence":"additional","affiliation":[{"name":"Dental Implant Research Center, Dental Research Institute, Department of Oral and Maxillofacial Surgery of dental school Tehran University of Medical Sciences"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mohammad Javad","family":"Kharazifard","sequence":"additional","affiliation":[{"name":"Dental Research Center, Dental Research Institute Tehran University of Medical Sciences  Tehran Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5837-2796","authenticated-orcid":false,"given":"Tahereh","family":"Bitaraf","sequence":"additional","affiliation":[{"name":"Dental Implant Research Center, Dental Research Institute Tehran University of Medical Sciences  Tehran PO Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2018,10,11]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.11607\/jomi.3504"},{"key":"e_1_2_9_3_1","article-title":"Improving quality of life using removable and fixed implant prostheses","volume":"33","author":"Pennington J","year":"2012","journal-title":"Compend Contin Educ Dent"},{"issue":"112","key":"e_1_2_9_4_1","first-page":"114","article-title":"Osseointegration: biological events in relation to characteristics of the implant surface","volume":"69","author":"Feller L","year":"2014","journal-title":"SADJ"},{"key":"e_1_2_9_5_1","first-page":"CD008397","article-title":"Interventions for replacing missing teeth: augmentation procedures of the maxillary sinus","volume":"13","author":"Esposito M","year":"2014","journal-title":"Cochrane Database Syst Rev"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/prd.12053"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.11607\/jomi.4861"},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.1111\/cid.12040"},{"key":"e_1_2_9_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jdent.2016.01.005"},{"key":"e_1_2_9_10_1","doi-asserted-by":"publisher","DOI":"10.1111\/cid.12252"},{"key":"e_1_2_9_11_1","first-page":"35","article-title":"Posterior jaws rehabilitated with partial prostheses supported by 4.0 x 4.0 mm or by longer implants: One\u2010year post\u2010loading results from a multicenter randomised controlled trial","volume":"9","author":"Felice P","year":"2016","journal-title":"Eur J Oral Implantol"},{"key":"e_1_2_9_12_1","first-page":"221","article-title":"Posterior jaws rehabilitated with partial prostheses supported by 4.0 x 4.0 mm or by longer implants: Four\u2010month post\u2010loading data from a randomised controlled trial","volume":"8","author":"Esposito M","year":"2015","journal-title":"Eur J Oral Implantol"},{"key":"e_1_2_9_13_1","doi-asserted-by":"publisher","DOI":"10.1111\/clr.12704"},{"key":"e_1_2_9_14_1","first-page":"393","article-title":"Four mm\u2010long versus longer implants in augmented bone in atrophic posterior jaws: 4\u2010month post\u2010loading results from a multicentre randomised controlled trial","volume":"9","author":"Esposito M","year":"2016","journal-title":"Eur J Oral Implantol"},{"key":"e_1_2_9_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.joms.2009.04.059"},{"key":"e_1_2_9_16_1","first-page":"47","article-title":"Early loading of implants in vertically augmented bone with non\u2010resorbable membranes and deproteinised anorganic bovine bone. 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