{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,12]],"date-time":"2026-03-12T13:01:41Z","timestamp":1773320501361,"version":"3.50.1"},"reference-count":24,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2006,4,27]],"date-time":"2006-04-27T00:00:00Z","timestamp":1146096000000},"content-version":"vor","delay-in-days":5017,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Dental Traumatology"],"published-print":{"date-parts":[[1992,8]]},"abstract":"<jats:p><jats:bold>Abstract<\/jats:bold> A previous study of the sensitivity and accuracy of a standardized radiographic technique for the disclosure of root cavities in a cadaver material indicated that it was not possible to perceive small artificial \u201cresorption\u201d cavities. Using the same material, the aim of the present study was to evaluate whether the use of subtraction radiography would improve the detection of root cavities. In an autopsy material of five mandibular blocks each containing two premolars, small, medium, and large cavities were drilled in the cervical, middle, and apical thirds of the proximal and oral root surfaces. Each jaw block was radiographed before (B) and after (A) cavity preparation with three different exposure times resulting in light, medium, and dark film densities. The radiographs were digitized. Digital subtraction was performed between the A\u2010 and B images of varying densities by a computer program developed for dental subtraction radiography. Conventional and reverse contrast modes of the subtraction image were assessed independently by four observers. The results showed small inter\u2010 and intraobserver differences in diagnostic accuracy for assessment of total number of root cavities. Original film density did not influence the diagnostic performance in the resulting subtraction image. Contrast mode in the subtraction image influenced diagnostic performance as the majority of observers did best with the reverse contrast mode (p&lt;0.05). Some of the small root cavities were disclosed by the subtraction technique, but overall accuracy was not increased compared to conventional radiography.<\/jats:p>","DOI":"10.1111\/j.1600-9657.1992.tb00234.x","type":"journal-article","created":{"date-parts":[[2006,4,28]],"date-time":"2006-04-28T17:37:37Z","timestamp":1146245857000},"page":"149-154","source":"Crossref","is-referenced-by-count":26,"title":["Digital subtraction radiography for assessment of simulated root resorption cavities. Performance of conventional and reverse contrast modes"],"prefix":"10.1111","volume":"8","author":[{"given":"Hanne","family":"Hintze","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ann","family":"Wenzel","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Frances M.","family":"Andreasen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ib","family":"Sewerin","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2006,4,27]]},"reference":[{"key":"e_1_2_1_2_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-9657.1987.tb00167.x"},{"key":"e_1_2_1_3_2","unstructured":"Gr\u00f6ndahlK.Computer\u2010assisted subtraction radiography in periodontal diagnosis.Thesis.Swed Dent J1987;Suppl50."},{"key":"e_1_2_1_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/0030-4220(91)90289-O"},{"key":"e_1_2_1_5_2","doi-asserted-by":"publisher","DOI":"10.2214\/ajr.152.2.261"},{"key":"e_1_2_1_6_2","volume-title":"Subtraktion of intraorale rentgenbilleder","author":"Depenau J","year":"1987"},{"key":"e_1_2_1_7_2","volume-title":"Detektion of paradentose","author":"Andersen H","year":"1988"},{"key":"e_1_2_1_8_2","doi-asserted-by":"publisher","DOI":"10.1259\/dmfr.18.4.2701173"},{"key":"e_1_2_1_9_2","first-page":"166","article-title":"Performance for obtaining maximal gain from a program for digital subtraction radiography","volume":"99","author":"Aagaard E","year":"1991","journal-title":"Scand J Dent Res"},{"key":"e_1_2_1_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/0030-4220(91)90441-E"},{"key":"e_1_2_1_11_2","first-page":"421","article-title":"Recommendations for quality assurance in dental radiography","volume":"55","author":"American Academy of Dental Radiology Quality Assurance Committee","year":"1983","journal-title":"Oral Surg Oral Med Oral Pathol"},{"key":"e_1_2_1_12_2","first-page":"527","article-title":"Influence of computerized information technologies on image quality in dental radiographs. 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