{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,20]],"date-time":"2025-11-20T06:10:11Z","timestamp":1763619011596,"version":"3.40.5"},"reference-count":56,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2021,2,1]],"date-time":"2021-02-01T00:00:00Z","timestamp":1612137600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["81991500","81991503"],"award-info":[{"award-number":["81991500","81991503"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Periodontal Research"],"published-print":{"date-parts":[[2021,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>An increasing number of patients with chronic periodontitis (CP) have received implant restoration. However, very few studies have evaluated the probable risk indicators of implant loss in patients with CP.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objective<\/jats:title><jats:p>The aim of this study is to evaluate implant long\u2010term survival rates in patients with CP. The results are analyzed to discern potential risk indicators of implant loss.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A total of 1549 implants were inserted in 827 non\u2010smokers and systemically healthy CP patients between March 2011 and March 2019. Clinical variables (age; sex; implant location; implant diameter; implant length; implant type; bone quality; bone graft, periodontal disease status, and insertion torque) were recorded. Kaplan\u2010Meier survival curves illustrated the cumulative survival rate. The relationship between variables and implant loss was discerned by univariate analysis. Further multivariate Cox proportional hazard regression analysis was carried out for the variables with <jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00.2.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The cumulative survival rates were 98.8% after 3\u00a0months, 97.9% after 6\u00a0months, 97.7% after 1\u00a0year, and 97.4% after 2 to 9\u00a0years. After adjusting possible confounders, the multivariable Cox regression model revealed statistically significant influences of implant location, history of bone graft, and insertion torque on implant loss. Implants with history of bone graft were more likely to loss. Implants inserted in the anterior area had a higher implant loss risk; insertion torque of &lt;15 Newton\u2010centimeter (Ncm) showed a relatively high risk of being lost.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The study represented public hospital insight into long\u2010term implant results of patients with CP. Under the premise of strict periodontal control, patients with the history of CP exhibited relatively high implant survival rate. Anterior implant location, history of bone graft, and insertion torque &lt;15\u00a0Ncm are associated with a lower implant survival rate and could be considered at a higher risk of implant failure in patients with CP.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jre.12854","type":"journal-article","created":{"date-parts":[[2021,2,1]],"date-time":"2021-02-01T18:48:32Z","timestamp":1612205312000},"page":"547-557","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Survival rate and potential risk indicators of implant loss in non\u2010smokers and systemically healthy periodontitis patients: An up to 9\u2010year retrospective study"],"prefix":"10.1111","volume":"56","author":[{"given":"Yiwei","family":"Wang","sequence":"first","affiliation":[{"name":"Department of Periodontology Shanghai Ninth People\u2019s Hospital College of Stomatology Shanghai Jiao Tong University School of Medicine Shanghai China"},{"name":"National 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