{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T11:36:02Z","timestamp":1791891362499,"version":"4.3.4"},"reference-count":34,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2013,5,7]],"date-time":"2013-05-07T00:00:00Z","timestamp":1367884800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Int Endodontic J"],"published-print":{"date-parts":[[2013,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Aim<\/jats:title><jats:p>To provide a three\u2010dimensional representation of external cervical resorption (<jats:styled-content style=\"fixed-case\">ECR<\/jats:styled-content>) with microscopy, stereo microscopy, cone beam computed tomography (<jats:styled-content style=\"fixed-case\">CT<\/jats:styled-content>), microfocus <jats:styled-content style=\"fixed-case\">CT<\/jats:styled-content> and scanning electron microscopy (<jats:styled-content style=\"fixed-case\">SEM<\/jats:styled-content>).<\/jats:p><\/jats:sec><jats:sec><jats:title>Summary<\/jats:title><jats:p>External cervical resorption is an aggressive form of root resorption, leading to a loss of dental hard tissues. This is due to clastic action, activated by a damage of the covering cementum and stimulated probably by infection. Clinically, it is a challenging situation as it is characterized by a late symptomatology. This is due to the pericanalar protection from a resorption\u2010resistant sheet, composed of pre\u2010dentine and surrounding dentine. The clastic activity is often associated with an attempt to repair, seen by the formation of osteoid tissue.<\/jats:p><\/jats:sec><jats:sec><jats:title>Key learning points<\/jats:title><jats:p>\n<jats:list list-type=\"bullet\">\n\n<jats:list-item><jats:p>Cone beam CT is extremely useful in the diagnoses and treatment planning of ECR.<\/jats:p><\/jats:list-item>\n\n<jats:list-item><jats:p>SEM analyses provide a better insight into the activity of osteoclasts.<\/jats:p><\/jats:list-item>\n\n<jats:list-item><jats:p>The root canal is surrounded by a layer of dentine that is resistant to resorption.<\/jats:p><\/jats:list-item>\n<\/jats:list>\n<\/jats:p><\/jats:sec>","DOI":"10.1111\/iej.12073","type":"journal-article","created":{"date-parts":[[2013,5,7]],"date-time":"2013-05-07T05:34:11Z","timestamp":1367904851000},"page":"877-887","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":48,"title":["External cervical resorption: an analysis 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