{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,3]],"date-time":"2026-05-03T12:20:34Z","timestamp":1777810834673,"version":"3.51.4"},"reference-count":12,"publisher":"SAGE Publications","issue":"8","license":[{"start":{"date-parts":[[1990,8,1]],"date-time":"1990-08-01T00:00:00Z","timestamp":649468800000},"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":[[1990,8]]},"abstract":"<jats:p>\n                    The aim of the present study was to compare demineralization of root hard tissue, monitored by\n                    <jats:sup>125<\/jats:sup>\n                    I absorptiometry, with lesion-depth measurements under polarized light microscopy. The intact roots of ten human molars, which had not been exposed to the oral environment, were divided into 39 cementum\/dentin blocks and exposed to a buffer solution of pH 4.5 containing 2.2 mmol\/L calcium and inorganic phosphate. After demineralization for 3.5, 7, 14, and 21 days, transmission measurements by\n                    <jats:sup>125<\/jats:sup>\n                    I absorptiometry were performed, and one block from each tooth was taken out of the solution for lesion-depth measurement. The results showed a high degree of correlation (r = 0.952) between lesion depth and change in transmission, with a more rapid increase initially in both variables. A linear relationship with the square root of time was found. Conversion of transmission data to lesion-depth data was possible when this caries model system was used on cementum\/ dentin blocks.\n                  <\/jats:p>","DOI":"10.1177\/00220345900690081401","type":"journal-article","created":{"date-parts":[[2010,11,28]],"date-time":"2010-11-28T21:14:56Z","timestamp":1290978896000},"page":"1519-1521","source":"Crossref","is-referenced-by-count":3,"title":["Root Hard-tissue Demineralization Rate Measured by 125I Absorptiometry: Comparison with Lesion-depth Measurements"],"prefix":"10.1177","volume":"69","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"}]}],"member":"179","published-online":{"date-parts":[[1990,8,1]]},"reference":[{"key":"atypb1","doi-asserted-by":"publisher","DOI":"10.1177\/00220345880670091301"},{"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":"10.1088\/0031-9155\/32\/10\/001"},{"key":"atypb4","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."},{"issue":"278","key":"atypb5","volume":"61","author":"Featherstone, M.J.","year":"1982","journal-title":"IADR Progr & Abst"},{"key":"atypb6","first-page":"69","volume":"67","author":"Henrikson, C.-O.","year":"1974","journal-title":"Swed Dent J"},{"key":"atypb7","doi-asserted-by":"publisher","DOI":"10.1177\/00220345860650071101"},{"key":"atypb8","unstructured":"Julin, P. (1975): Quantitative Longitudinal Photon Absorptiometry in vitro on Changes in Enamel Mineral Mass, Thesis, Odontological Faculty, Karolinska Institutet, Stockholm, Sweden, pp. 1-72."},{"key":"atypb9","doi-asserted-by":"publisher","DOI":"10.1159\/000261125"},{"key":"atypb10","doi-asserted-by":"publisher","DOI":"10.1177\/00220345850640060701"},{"key":"atypb11","doi-asserted-by":"publisher","DOI":"10.1016\/0039-9140(68)80097-9"},{"key":"atypb12","unstructured":"Wefel, J.S.; Clarkson, B.H.; and Heilman, J.R. (1987): Histology of Root Surface Caries. In: Dentine and Dentine Reactions in the Oral Cavity, A. Thylstrup, S.A. Leach, and V. Qvist, Eds. Oxford : IRL Press Ltd., pp. 139-146."}],"container-title":["Journal of Dental Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/00220345900690081401","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/00220345900690081401","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T21:01:01Z","timestamp":1777496461000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/00220345900690081401"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1990,8]]},"references-count":12,"journal-issue":{"issue":"8","published-print":{"date-parts":[[1990,8]]}},"alternative-id":["10.1177\/00220345900690081401"],"URL":"https:\/\/doi.org\/10.1177\/00220345900690081401","relation":{},"ISSN":["0022-0345","1544-0591"],"issn-type":[{"value":"0022-0345","type":"print"},{"value":"1544-0591","type":"electronic"}],"subject":[],"published":{"date-parts":[[1990,8]]}}}