{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,3]],"date-time":"2026-05-03T12:09:34Z","timestamp":1777810174744,"version":"3.51.4"},"reference-count":18,"publisher":"SAGE Publications","issue":"9","license":[{"start":{"date-parts":[[1988,9,1]],"date-time":"1988-09-01T00:00:00Z","timestamp":589075200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Dent Res"],"published-print":{"date-parts":[[1988,9]]},"abstract":"<jats:p>\n                    Radiation from a\n                    <jats:sup>125<\/jats:sup>\n                    I source and a non-image-forming detector was used for non-destructive measurements of root caries progression. Blocks were cut parallel to the cementum surface of unexposed human roots. These blocks were then individually demineralized in under-saturated calcium phosphate solutions over an 84-hour period. In order for the in vitro root surface demineralization to be followed, the changes in transmission (\u0394T) through the blocks were measured, by\n                    <jats:sup>125<\/jats:sup>\n                    I absorptiometry, eight times during the course of the experiment. Chemical analyses of the calcium output (\u0394Ca) from the blocks into the demineralizing solutions were also performed, and the rate of demineralization (V\n                    <jats:sub>dem<\/jats:sub>\n                    ) was calculated from these values. The precision of\n                    <jats:sup>125<\/jats:sup>\n                    I absorptiometry was calculated from 176 duplicate transmission measurements, and the coefficient of variation was found to be 0.20%. The correlation coefficient between \u0394T and total \u0394Ca for each of 22 cementumldentin blocks ranged between r = 0.934 and r = 0.998. The progression of root hard-tissue lesions observed by these two methods and by the calculated V\n                    <jats:sub>dem<\/jats:sub>\n                    was found to be proportional to the square and cubic roots of time. The study shows that\n                    <jats:sup>125<\/jats:sup>\n                    I absorptiometry can be used for continuous non-destructive measurements of root hard-tissue demineralization in vitro.\n                  <\/jats:p>","DOI":"10.1177\/00220345880670091301","type":"journal-article","created":{"date-parts":[[2010,11,28]],"date-time":"2010-11-28T21:14:56Z","timestamp":1290978896000},"page":"1217-1220","source":"Crossref","is-referenced-by-count":9,"title":["In vitro Root Caries Progression Measured by 125I Absorptiometry: Comparison with Chemical Analysis"],"prefix":"10.1177","volume":"67","author":[{"given":"H.","family":"Almqvist","sequence":"first","affiliation":[{"name":"Department of Cariology, Karolinska Institutet, School of Dentistry, Box 4064, 141 04 Huddinge, Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J.S.","family":"Wefel","sequence":"additional","affiliation":[{"name":"Specialized Caries Research Center, College of Dentistry, The University of Iowa, Iowa City, Iowa 52242"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"F.","family":"Lagerlof","sequence":"additional","affiliation":[{"name":"Department of Cariology, Karolinska Institutet, School of Dentistry, Box 4064, 141 04 Huddinge, Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J.","family":"Ekstrand","sequence":"additional","affiliation":[{"name":"Specialized Caries Research Center, College of Dentistry, The University of Iowa, Iowa City, Iowa 52242"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"C.O.","family":"Henrikson","sequence":"additional","affiliation":[{"name":"Department of Oral Radiology, Karolinska Institutet, School of Dentistry, Box 4064, 141 04 Huddinge, Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[1988,9,1]]},"reference":[{"key":"atypb1","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-5320(63)80017-9"},{"key":"atypb2","unstructured":"Arends, J.; Christoffersen, J.; Ruben, J.; and Christoffersen, M.R. (1987): Lesion Progress in Dentine and the Role of Fluoride. In: Dentine and Dentine Reactions in the Oral Cavity, A. Thylstrup, S.A. Leach, and V. Qvist, Eds. Oxford: IRL Press Ltd., pp. 117-125."},{"key":"atypb3","doi-asserted-by":"publisher","DOI":"10.1016\/B978-1-4832-3117-4.50015-2"},{"key":"atypb4","doi-asserted-by":"publisher","DOI":"10.1159\/000260633"},{"key":"atypb5","doi-asserted-by":"publisher","DOI":"10.1088\/0031-9155\/32\/10\/001"},{"key":"atypb6","doi-asserted-by":"publisher","DOI":"10.1016\/0003-9969(79)90057-8"},{"key":"atypb7","unstructured":"Featherstone, J.D.B.; McIntyre, J.M.; and Fu, J. (1987): Physico-chemical Aspects of Root Caries Progression . In: Dentine and Dentine Reactions in the Oral Cavity, A. Thylstrup, S.A. Leach , and V. Qvist, Eds. Oxford: IRL Press Ltd., pp. 127-137."},{"key":"atypb8","first-page":"278","volume":"61","author":"Featherstone, M.J.","year":"1982","journal-title":"IADR Progr & Abst"},{"key":"atypb9","first-page":"69","volume":"67","author":"Henrikson, C.O.","year":"1974","journal-title":"Swed Dent J"},{"key":"atypb10","doi-asserted-by":"publisher","DOI":"10.1177\/00220345860650071101"},{"key":"atypb11","volume-title":"Quantitative Longitudinal Photon Absorptiometry in vitro on Changes in Enamel Mineral Mass. Thesis. Odontological Faculty","author":"Julin, P.","year":"1975"},{"key":"atypb12","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0714.1974.tb01710.x"},{"key":"atypb13","doi-asserted-by":"publisher","DOI":"10.1159\/000260694"},{"key":"atypb14","doi-asserted-by":"publisher","DOI":"10.1177\/00220345850640060701"},{"key":"atypb15","doi-asserted-by":"publisher","DOI":"10.1016\/0003-9969(81)90039-X"},{"key":"atypb16","doi-asserted-by":"crossref","first-page":"540","DOI":"10.1159\/000260818","volume":"18","author":"Ten Bosch, J.J.","year":"1984","journal-title":"Caries Res"},{"key":"atypb17","doi-asserted-by":"publisher","DOI":"10.1159\/000260667"},{"key":"atypb18","doi-asserted-by":"publisher","DOI":"10.1016\/0003-9969(85)90022-6"}],"container-title":["Journal of Dental Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/00220345880670091301","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/00220345880670091301","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T20:59:13Z","timestamp":1777496353000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/00220345880670091301"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1988,9]]},"references-count":18,"journal-issue":{"issue":"9","published-print":{"date-parts":[[1988,9]]}},"alternative-id":["10.1177\/00220345880670091301"],"URL":"https:\/\/doi.org\/10.1177\/00220345880670091301","relation":{},"ISSN":["0022-0345","1544-0591"],"issn-type":[{"value":"0022-0345","type":"print"},{"value":"1544-0591","type":"electronic"}],"subject":[],"published":{"date-parts":[[1988,9]]}}}