{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,29]],"date-time":"2026-07-29T11:15:55Z","timestamp":1785323755783,"version":"3.55.0"},"reference-count":18,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2022,1,12]],"date-time":"2022-01-12T00:00:00Z","timestamp":1641945600000},"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":[[2022,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Short implants (up to 5\u2010mm long) have shown good results when compared to longer implants placed in augmented bone.<\/jats:p><\/jats:sec><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To evaluate if 4\u2010mm ultrashort implants could also be an alternative to bone augmentation in the severely atrophic posterior jaws. The primary aim of the study was to compare implant survival rates between study groups.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>Eighty partially edentulous patients with posterior atrophic jaws (5\u20136\u2009mm of bone above the mandibular canal and 4\u20135\u2009mm below the maxillary sinus) were included: 40 patients in the maxilla and 40 in mandible. The patients were randomized to receive one to three 4\u2010mm ultrashort implants or one to three implants at least 10\u2010mm long in augmented bone. Results are reported 5\u2009years after loading with the following outcome measures: implant and prosthetic failures, complications and peri\u2010implant marginal bone level changes.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Thirty\u2010two complications were reported for the control group in 18 patients versus 13 complications in 10 patients in the test group, the difference being not statistically significant (<jats:italic>p<\/jats:italic>\u00a0=\u20090.103). In the augmented group, 12 implants failed in 6 patients versus 7 short implants in 6 cases, and 9 prostheses failed in the control group while 4 in the test one, without statistically significant differences (<jats:italic>p<\/jats:italic>\u00a0=\u20091.000 and 0.363, respectively). At 5\u2009years after loading, short implants lost on average 0.58\u2009\u00b1\u20090.40\u2009mm of peri\u2010implant marginal bone and long implants 0.99\u2009\u00b1\u20090.58\u2009mm, the difference was statistically significant (<jats:italic>p<\/jats:italic>\u00a0=\u20090.006).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Four\u2010millimeter ultrashort implants showed similar if not better results when compared to longer implants placed in augmented jaws 5\u2009years after loading. For this reason, their use could be in specific cases preferable to bone augmentation since the treatment is less invasive, faster, cheaper and associated with less morbidity. However, longer follow\u2010ups and larger trials are needed.<\/jats:p><\/jats:sec>","DOI":"10.1111\/cid.13061","type":"journal-article","created":{"date-parts":[[2022,1,12]],"date-time":"2022-01-12T12:09:57Z","timestamp":1641989397000},"page":"4-12","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["<i>Retracted:<\/i> A 5\u2010year randomized controlled clinical trial comparing 4\u2010mm ultrashort to longer implants placed in regenerated bone in the posterior atrophic jaw"],"prefix":"10.1111","volume":"24","author":[{"given":"Carlo","family":"Barausse","sequence":"first","affiliation":[{"name":"Department of Biomedical and Neuromotor Sciences Unit of Oral Surgery, University of Bologna  Bologna Italy"},{"name":"Postgraduate School of Oral Surgery University of Modena and Reggio Emilia  Modena Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roberto","family":"Pistilli","sequence":"additional","affiliation":[{"name":"Oral and Maxillofacial Unit San Camillo Hospital  Rome Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9875-2929","authenticated-orcid":false,"given":"Luigi","family":"Canullo","sequence":"additional","affiliation":[{"name":"Department of Periodontology University of Bern  Bern Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lorenzo","family":"Bonifazi","sequence":"additional","affiliation":[{"name":"Department of Biomedical and Neuromotor Sciences Unit of Oral Surgery, University of Bologna  Bologna Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Agnese","family":"Ferri","sequence":"additional","affiliation":[{"name":"Department of Biomedical and Neuromotor Sciences Unit of Oral Surgery, University of Bologna  Bologna Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3172-2343","authenticated-orcid":false,"given":"Pietro","family":"Felice","sequence":"additional","affiliation":[{"name":"Department of Biomedical and Neuromotor Sciences Unit of Oral Surgery, University of Bologna  Bologna Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2022,1,12]]},"reference":[{"key":"e_1_2_11_2_1","first-page":"237","article-title":"Bone augmentation procedures in implant dentistry","volume":"24","author":"Chiapasco M","year":"2009","journal-title":"Int J Oral Maxillofac Implants"},{"key":"e_1_2_11_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.13061"},{"key":"e_1_2_11_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/clr.12184"},{"key":"e_1_2_11_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/cid.12946"},{"issue":"1","key":"e_1_2_11_6_1","first-page":"31","article-title":"4\u2009mm long vs longer implants in augmented bone in posterior atrophic jaws: 1\u2010year post\u2010loading results from a multicentre randomised controlled trial","volume":"11","author":"Bolle C","year":"2018","journal-title":"Eur J Oral Implantol"},{"key":"e_1_2_11_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/cid.12995"},{"issue":"3","key":"e_1_2_11_8_1","first-page":"315","article-title":"Single crowns in the resorbed posterior maxilla supported by either 11\u2010mm implants combined with sinus floor elevation or 6\u2010mm implants: a 5\u2010year randomised controlled trial","volume":"12","author":"Gulj\u00e9 FL","year":"2019","journal-title":"Int J Oral Implantol"},{"key":"e_1_2_11_9_1","doi-asserted-by":"publisher","DOI":"10.1111\/cid.12563"},{"key":"e_1_2_11_10_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.13147"},{"issue":"4","key":"e_1_2_11_11_1","first-page":"385","article-title":"Short implants versus longer implants in vertically augmented posterior mandibles: result at 8\u2009years after loading from a randomised controlled trial","volume":"11","author":"Felice P","year":"2018","journal-title":"Eur J Oral Implantol"},{"key":"e_1_2_11_12_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.13026"},{"key":"e_1_2_11_13_1","doi-asserted-by":"publisher","DOI":"10.1111\/clr.12632"},{"key":"e_1_2_11_14_1","doi-asserted-by":"publisher","DOI":"10.1111\/clr.13584"},{"key":"e_1_2_11_15_1","doi-asserted-by":"publisher","DOI":"10.11607\/jomi.7355"},{"key":"e_1_2_11_16_1","doi-asserted-by":"publisher","DOI":"10.1111\/clr.13338"},{"key":"e_1_2_11_17_1","doi-asserted-by":"publisher","DOI":"10.1111\/cid.12881"},{"issue":"1","key":"e_1_2_11_18_1","first-page":"35","article-title":"Posterior jaws rehabilitated with partial prostheses supported by 4.0 x 4.0\u2009mm 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 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