{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,9]],"date-time":"2026-06-09T10:20:49Z","timestamp":1781000449721,"version":"3.54.1"},"reference-count":24,"publisher":"The Angle Orthodontist (EH Angle Education & Research Foundation)","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2013,3]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n        <jats:sec>\n          <jats:title>Objective: <\/jats:title>\n          <jats:p>To compare the diagnostic accuracy between cone-beam computed tomography (CBCT) and periapical radiography for detecting simulated external apical root resorption (EARR) in vitro.<\/jats:p>\n        <\/jats:sec>\n        <jats:sec>\n          <jats:title>Materials and Methods: <\/jats:title>\n          <jats:p>The study sample consisted of 160 single-rooted premolar teeth for simulating EARR of varying degrees according to four setups: no (intact teeth), mild (cavity of 1.0\u00a0mm in diameter and depth on root surface), moderate (0.4\u00a0mm, 0.8\u00a0mm, 1.2\u00a0mm, and 1.6\u00a0mm root shortening), and severe (2.4\u00a0mm, 2.8\u00a0mm, 3.2\u00a0mm, and 3.6\u00a0mm root shortening). Two groups of radiographic images were obtained via CBCT and periapical radiography. The absence or presence and the severity for all resorption lesions were evaluated blindly by two calibrated observers.<\/jats:p>\n        <\/jats:sec>\n        <jats:sec>\n          <jats:title>Results: <\/jats:title>\n          <jats:p>With the CBCT method, the rates of correct classification of no, mild, moderate, and severe EARR were 96.3%, 98.8%, 41.3%, and 87.5%, respectively; with the periapical radiography method, the rates were 82.5%, 41.3%, 68.8%, and 92.5%, respectively. Highly significant differences were found between the two imaging methods for detection of mild (<jats:italic>P<\/jats:italic> &lt; .001), moderate (<jats:italic>P<\/jats:italic> &lt; .001), and all EARR (<jats:italic>P<\/jats:italic> &lt; .001). For detection of all EARR, the sensitivity and specificity values were 75.8% and 96.3% for CBCT, compared with 67.5% and 82.5% for periapical radiography.<\/jats:p>\n        <\/jats:sec>\n        <jats:sec>\n          <jats:title>Conclusion: <\/jats:title>\n          <jats:p>CBCT is a reliable diagnostic tool to detect simulated EARR, whereas periapical radiography underestimates it. However, if a periapical radiograph is already available to the diagnosis of EARR, CBCT should be used with extreme caution to avoid additional radiation exposure.<\/jats:p>\n        <\/jats:sec>","DOI":"10.2319\/050512-372.1","type":"journal-article","created":{"date-parts":[[2012,8,14]],"date-time":"2012-08-14T15:22:01Z","timestamp":1344957721000},"page":"189-195","source":"Crossref","is-referenced-by-count":73,"title":["Comparison of cone-beam computed tomography and periapical radiography for detecting simulated apical root resorption"],"prefix":"10.2319","volume":"83","author":[{"given":"Hongyu","family":"Ren","sequence":"first","affiliation":[{"name":"Student, Department of Orthodontics, College of Stomatology, Chongqing Medical University, Chongqing, PR China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jun","family":"Chen","sequence":"additional","affiliation":[{"name":"Resident, Department of Orthodontics, College of Stomatology, Chongqing Medical University, Chongqing, PR China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Feng","family":"Deng","sequence":"additional","affiliation":[{"name":"Doctor, Department of Orthodontics, College of Stomatology, Chongqing Medical University, Chongqing, PR China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Leilei","family":"Zheng","sequence":"additional","affiliation":[{"name":"Department Head, Department of Orthodontics, College of Stomatology, Chongqing Medical University, Chongqing, PR China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiong","family":"Liu","sequence":"additional","affiliation":[{"name":"Professor and Department Head, Department of Radiology, College of Stomatology, Chongqing Medical University, Chongqing, PR China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yanling","family":"Dong","sequence":"additional","affiliation":[{"name":"Student, Department of Orthodontics, College of Stomatology, Chongqing Medical University, Chongqing, PR China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1164","reference":[{"key":"i0003-3219-83-2-189-b01","series-title":"Angle Orthod","first-page":"480","article-title":"Apical root resorption during orthodontic treatment","volume":"82","author":"Lund\n              H ,","year":"2012","unstructured":"Lund\n              H , \n            \n              Grondahl\n              K , \n            \n              Hansen\n              K ,  and GrondahlHG . \n          Apical root resorption during orthodontic treatment . 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