{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,15]],"date-time":"2026-05-15T00:27:16Z","timestamp":1778804836775,"version":"3.51.4"},"reference-count":20,"publisher":"Wiley","issue":"11-12","license":[{"start":{"date-parts":[[2012,2,23]],"date-time":"2012-02-23T00:00:00Z","timestamp":1329955200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2015,9,1]],"date-time":"2015-09-01T00:00:00Z","timestamp":1441065600000},"content-version":"tdm","delay-in-days":1286,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["wiley.com"],"crossmark-restriction":true},"short-container-title":["Statistics in Medicine"],"published-print":{"date-parts":[[2012,5,20]]},"abstract":"<jats:p>We aim to compare the life expectancy of a filling in a primary tooth between two types of treatments. We define the probabilities that a dental filling survives without complication until the permanent tooth erupts from beneath (exfoliation). We relate the time to exfoliation of the tooth to the age of the child and the time to failure of the filling to the duration since the treatment. We followed up fillings at repeated examinations where information is collected regarding the filling and the tooth. Several fillings can be placed in the same mouth, possibly by the same dentist. To deal with all these particularities, we propose to use a parametric four\u2010state model with three random effects to take into account the hierarchical cluster structure. For inference, right and interval censoring as well as left truncation have to be dealt with. With the proposed approach, we can conclude that the estimated probability that a filling survives without complication until exfoliation is larger for one treatment than for the other, for all ages of the child at the time of treatment. Copyright \u00a9 2012 John Wiley &amp; Sons, Ltd.<\/jats:p>","DOI":"10.1002\/sim.4459","type":"journal-article","created":{"date-parts":[[2012,2,23]],"date-time":"2012-02-23T09:03:50Z","timestamp":1329987830000},"page":"1139-1149","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Estimating survival of dental fillings on the basis of interval\u2010censored data and multi\u2010state models"],"prefix":"10.1002","volume":"31","author":[{"given":"Pierre","family":"Joly","sequence":"first","affiliation":[{"name":"INSERM, U\u2010897  Bordeaux, F33076 France"},{"name":"Univ. Bordeaux ISPED  Bordeaux, F33076 France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Thomas A.","family":"Gerds","sequence":"additional","affiliation":[{"name":"Department of Biostatistics University of Copenhagen  Copenhagen Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vibeke","family":"Qvist","sequence":"additional","affiliation":[{"name":"Department of Cariology and Endodontics, School of Dentistry, Faculty of Health Sciences University of Copenhagen  Copenhagen Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daniel","family":"Commenges","sequence":"additional","affiliation":[{"name":"INSERM, U\u2010897  Bordeaux, F33076 France"},{"name":"Univ. 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