{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,11]],"date-time":"2026-06-11T08:35:00Z","timestamp":1781166900183,"version":"3.54.1"},"reference-count":65,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2010,4,7]],"date-time":"2010-04-07T00:00:00Z","timestamp":1270598400000},"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":[[2010,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p><jats:bold>Objective: <\/jats:bold> In part 2 of this long\u2010term, retrospective study on the two\u2010implant\u2010supported overdenture in the mandible, the annual marginal bone loss was evaluated in detail and parameters, with a significant effect on the annual bone loss, were verified.<\/jats:p><jats:p><jats:bold>Material and methods: <\/jats:bold> For all 495 patients with an overdenture in the mandible at least 5 years in function, data up to their last follow\u2010up visit had been collected, including long\u2010cone radiographs (taken at the abutment connection and after years 1, 3, 5, 8, 12 and 16 of loading) and probing data at their last evaluation. General information (medical history, implant data, report on surgery) was retrieved from the patient's file. Two hundred and forty\u2010eight patients had been clinically examined recently. For the others, information on bone level and probing depths were retrieved from the patient's files, as all patients had been enrolled in our annual follow\u2010up schedule.<\/jats:p><jats:p><jats:bold>Results: <\/jats:bold> The mean annual bone loss on a site level (without considering the first year of bone remodelling) after 3 years of loading was 0.08\u2003mm\/year (SD=0.22, <jats:italic>n<\/jats:italic>=1105), after 5 years of loading 0.07\u2003mm\/year (SD=0.14, <jats:italic>n<\/jats:italic>=892), after 8 years of loading 0.06\u2003mm\/year (SD=0.12, <jats:italic>n<\/jats:italic>=598), after 12 years 0.04\u2003mm\/year (SD=0.07, <jats:italic>n<\/jats:italic>=370) and 0.05\u2003mm\/year (SD=0.05, <jats:italic>n<\/jats:italic>=154) after 16 years of loading. Ongoing bone loss was seen in a number of implants (<jats:italic>n<\/jats:italic>=26) with the annual bone loss exceeding 0.2\u2003mm. Some factors clearly showed a significant impact on bone loss: smoking (\u226510\u2003cigarettes\/day), GBR, the presence of dehiscence and bone quantity(the latter only during the first year). The probing data showed a favourable condition, with &lt;1.2% of the approximal pockets being \u22656\u2003mm, and 4.1%=5\u2003mm.<\/jats:p><jats:p><jats:bold>Conclusions: <\/jats:bold> The mean annual bone loss over the study period was &lt;0.1\u2003mm\/year after the first year of loading. However, a small number (2.5%) of the implants showed continuing bone loss.<\/jats:p><jats:p> <jats:bold>To cite this article<\/jats:bold>:\u2028Vercruyssen M, Quirynen M. Long\u2010term, retrospective evaluation (implant and patient\u2010centred outcome) of the two\u2010implants\u2010supported overdenture in the mandible. Part 2: marginal bone loss.\u2028<jats:italic>Clin. Oral Impl. Res<\/jats:italic>. <jats:bold>21<\/jats:bold>, 2010; 466\u2013472.\u2028doi: 10.1111\/j.1600\u20100501.2009.01902.x<\/jats:p>","DOI":"10.1111\/j.1600-0501.2009.01902.x","type":"journal-article","created":{"date-parts":[[2010,4,8]],"date-time":"2010-04-08T02:07:06Z","timestamp":1270692426000},"page":"466-472","source":"Crossref","is-referenced-by-count":25,"title":["Long\u2010term, retrospective evaluation (implant and patient\u2010centred outcome) of the two\u2010implant\u2010supported overdenture in the mandible. 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