{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,3]],"date-time":"2026-05-03T01:21:34Z","timestamp":1777771294645,"version":"3.51.4"},"reference-count":0,"publisher":"S. Karger AG","license":[{"start":{"date-parts":[[2009,11,17]],"date-time":"2009-11-17T00:00:00Z","timestamp":1258416000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"},{"start":{"date-parts":[[2009,11,17]],"date-time":"2009-11-17T00:00:00Z","timestamp":1258416000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Caries Res"],"abstract":"<jats:p>A method for in vivo measurements of the permeability of surface enamel was applied to the central maxillary incisor of two groups of children ranging in age from 7 to 9 and 13 to 14 years, respectively. The method involved exposure of a standard area of the surface enamel to 2 M KI, removal of the iodide present on the surface, and determination of back diffusion of the imbibed iodide. The mean ( \u00b1 SE) of recovered iodide, expressed in mole equivalents \u00d7 1010, was 34.0 (5.9) for the younger group (n = 27) and 4.1 (1.3) for the older group (n = 32). The difference was statistically significant (p &lt; 0.01). It is concluded that posteruptive maturation of enamel involves a decrease in permeability to iodide. The drinking water was fluoridated 4 years before the study was undertaken and possible effects of the waterborne fluoride on the findings are discussed.<\/jats:p>","DOI":"10.1159\/000260604","type":"journal-article","created":{"date-parts":[[2009,11,18]],"date-time":"2009-11-18T06:08:16Z","timestamp":1258524496000},"page":"243-248","source":"Crossref","is-referenced-by-count":24,"title":["A Preliminary Study of Posteruptive Maturation of Teeth in situ"],"prefix":"10.1159","author":[{"given":"F.","family":"Brudevold","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R.","family":"Aasenden","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Y.","family":"Bakhos","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"127","published-online":{"date-parts":[[2009,11,17]]},"container-title":["Caries Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/karger.com\/article-pdf\/doi\/10.1159\/000260604","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T16:48:23Z","timestamp":1777481303000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000260604"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009,11,17]]},"references-count":0,"URL":"https:\/\/doi.org\/10.1159\/000260604","archive":["Portico"],"relation":{},"ISSN":["0008-6568","1421-976X"],"issn-type":[{"value":"0008-6568","type":"print"},{"value":"1421-976X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2009,11,17]]}}}