{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,10]],"date-time":"2026-03-10T15:59:08Z","timestamp":1773158348427,"version":"3.50.1"},"reference-count":39,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2020,3,9]],"date-time":"2020-03-09T00:00:00Z","timestamp":1583712000000},"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":["Clinical Oral Implants Res"],"published-print":{"date-parts":[[2020,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objectives<\/jats:title><jats:p>To report on the clinical outcomes of one\u2010piece mini dental implants (MDIs) retaining mandibular implant overdentures (IODs), including marginal bone\u2010level alterations (\u0394MBLs), clinical peri\u2010implant parameters, and technical\u2010 and biological complications during a 5\u2010year follow\u2010up. The null hypothesis was that \u0394MBLs would be equal in subjects older than 65\u00a0years relative to younger subjects.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and methods<\/jats:title><jats:p>Four 1.8\u2010mm diameter one\u2010piece MDIs with ball attachments were placed in the interforaminal region of 20 edentulous subjects. The existing complete dentures were converted to IODs. Standardized radiographs of each implant were taken at implant placement (baseline) and during the five\u2010year follow\u2010up. \u0394MBLs and potential influencing factors were evaluated, and peri\u2010implant parameters, and biological and technical complications were recorded.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The implant and prosthetic survival rates were both 100%. IODs fractured in seven participants. The overall mean \u0394MBL after 5\u00a0years was \u22121.18\u00a0mm (standard deviation: 0.79\u00a0mm). \u0394MBLs per month were most pronounced within the first 3\u00a0months after implant placement. \u0394MBLs were not influenced by the implant location, the presence of keratinized mucosa, or gender. However, \u0394MBLs were significantly smaller in subjects older than 65\u00a0years (<jats:italic>p<\/jats:italic>\u00a0=\u00a0.007).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>One\u2010piece MDIs retaining mandibular IODs with O\u2010ring attachments are a predictable treatment option, providing stable peri\u2010implant bone and soft tissue conditions over a mid\u2010term follow\u2010up. Incorporating a metal reinforcement can prevent denture fracturing when converting a complete denture into an IOD. The presence of keratinized mucosa does not necessarily lead to decreased bone\u2010level changes. Advanced age might be beneficial in terms of peri\u2010implant bone stability.<\/jats:p><\/jats:sec>","DOI":"10.1111\/clr.13591","type":"journal-article","created":{"date-parts":[[2020,2,25]],"date-time":"2020-02-25T03:30:28Z","timestamp":1582601428000},"page":"549-556","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":28,"title":["Clinical outcomes and bone\u2010level alterations around one\u2010piece mini dental implants retaining mandibular overdentures: 5\u2010year follow\u2010up of a prospective cohort study"],"prefix":"10.1111","volume":"31","author":[{"given":"Norbert","family":"Enkling","sequence":"first","affiliation":[{"name":"Department of Reconstructive Dentistry and Gerodontology University of Bern Bern Switzerland"},{"name":"Department of Prosthodontics, Preclinical Education and Dental Materials Science University of Bonn Bonn Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rim","family":"Moazzin","sequence":"additional","affiliation":[{"name":"Department of Reconstructive Dentistry and Gerodontology University of Bern Bern Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gregor","family":"Geers","sequence":"additional","affiliation":[{"name":"Department of Reconstructive Dentistry and Gerodontology University of Bern Bern Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stephanie","family":"Kokoschka","sequence":"additional","affiliation":[{"name":"Department of Reconstructive Dentistry and Gerodontology University of Bern Bern Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1047-5571","authenticated-orcid":false,"given":"Samir","family":"Abou\u2010Ayash","sequence":"additional","affiliation":[{"name":"Department of Reconstructive Dentistry and Gerodontology University of Bern Bern Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9700-5534","authenticated-orcid":false,"given":"Martin","family":"Schimmel","sequence":"additional","affiliation":[{"name":"Department of Reconstructive Dentistry and Gerodontology University of Bern Bern Switzerland"},{"name":"Division of Gerodontology and Removable Prosthodontics University of Geneva Geneva Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2020,3,9]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/cid.12816"},{"key":"e_1_2_8_3_1","first-page":"1323","article-title":"Survival of short dental implants for treatment of posterior partial edentulism: A systematic review","volume":"27","author":"Atieh M. 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