{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T17:16:44Z","timestamp":1788283004667,"version":"build-2803163510"},"reference-count":25,"publisher":"Oxford University Press (OUP)","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Dentomaxillofacial Radiology"],"published-print":{"date-parts":[[2022,2,1]]},"abstract":"<jats:sec><jats:title>Objectives:<\/jats:title><jats:p> To compare the severity of external cervical resorption (ECR) observed in periapical (PA) images and cone beam CT (CBCT) using the Heithersay classification system and pulp involvement; and to assess inter- and intraobserver reproducibility for three observers. <\/jats:p><\/jats:sec><jats:sec><jats:title>Methods:<\/jats:title><jats:p> CBCT examination was performed in 245 teeth (in 190 patients, mean age 40 years, range 12\u201382) with ECR diagnosed in PA images. Three observers scored the severity of ECR using the Heithersay classification system (severity class 1\u20134) and pulp involvement (yes\/no) in both PA images and CBCT. Percentage concordance and \u03ba-statistics described observer variation in PA images and CBCT for both inter- and intraobserver reproducibility. <\/jats:p><\/jats:sec><jats:sec><jats:title>Results:<\/jats:title><jats:p> For all three observers, the ECR score was the same in the two modalities in more than half of cases (average 59%; obs1: 54%, obs2: 63%, obs3: 61%). However, in 38% (obs1: 44%, obs2: 33%, obs3: 36%) of the cases, the observers scored more severe ECR in CBCT than in PA images (p &lt; 0.001). The ECR score changed to a less severe score in CBCT only in 3% (obs1: 1%, obs2: 4%, obs3: 4%). For pulp involvement, 14% (obs1: 7%, obs2: 20%, obs3: 15%) of the cases changed from \u201cno\u201d in PA images to \u201cyes\u201d in CBCT. In general, \u03ba values were higher for CBCT than for PA images for both the Heithersay classification score and pulp involvement. <\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions:<\/jats:title><jats:p> ECR was generally scored as more severe in CBCT than PA images using the Heithersay classification and also more cases had pulp involvement in CBCT. <\/jats:p><\/jats:sec>","DOI":"10.1259\/dmfr.20210279","type":"journal-article","created":{"date-parts":[[2021,9,14]],"date-time":"2021-09-14T17:35:43Z","timestamp":1631640943000},"source":"Crossref","is-referenced-by-count":12,"title":["Impact of cone beam CT on diagnosis of external cervical resorption: the severity of resorption assessed in periapical radiographs and cone beam CT. A prospective clinical study"],"prefix":"10.1093","volume":"51","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4719-7157","authenticated-orcid":false,"given":"Julie","family":"Suhr Villefrance","sequence":"first","affiliation":[{"name":"Section for Oral Radiology, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lise-Lotte","family":"Kirkevang","sequence":"additional","affiliation":[{"name":"Section for Oral Radiology, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ann","family":"Wenzel","sequence":"additional","affiliation":[{"name":"Section for Oral Radiology, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael","family":"V\u00e6th","sequence":"additional","affiliation":[{"name":"Department of Public Health, Aarhus University, Aarhus, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Louise Hauge","family":"Matzen","sequence":"additional","affiliation":[{"name":"Section for Oral Radiology, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","reference":[{"key":"b1","doi-asserted-by":"publisher","DOI":"10.1016\/j.joen.2009.01.015"},{"key":"b2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joen.2016.06.007"},{"key":"b3","doi-asserted-by":"publisher","DOI":"10.1016\/j.joen.2016.06.014"},{"key":"b4","first-page":"83","volume":"30","author":"Heithersay GS","year":"1999","journal-title":"Quintessence Int"},{"key":"b5","first-page":"27","volume":"30","author":"Heithersay GS","year":"1999","journal-title":"Quintessence Int"},{"key":"b6","doi-asserted-by":"publisher","DOI":"10.1007\/s00784-018-2592-x"},{"key":"b7","doi-asserted-by":"publisher","DOI":"10.1016\/j.joen.2017.10.001"},{"key":"b8","doi-asserted-by":"publisher","DOI":"10.1111\/iej.12824"},{"key":"b9","doi-asserted-by":"publisher","DOI":"10.1016\/j.joen.2020.03.006"},{"key":"b10","doi-asserted-by":"publisher","DOI":"10.1111\/iej.12942"},{"key":"b11","doi-asserted-by":"publisher","DOI":"10.1111\/iej.13008"},{"key":"b12","doi-asserted-by":"publisher","DOI":"10.1111\/iej.12267"},{"key":"b13","doi-asserted-by":"publisher","DOI":"10.1111\/j.1601-1546.2004.00060.x"},{"key":"b14","first-page":"357","volume":"68","author":"Boyd NF","year":"1982","journal-title":"J Natl Cancer Inst"},{"key":"b15","doi-asserted-by":"publisher","DOI":"10.1016\/j.joen.2021.03.004"},{"key":"b16","doi-asserted-by":"publisher","DOI":"10.1177\/0272989X9101100203"},{"key":"b17","doi-asserted-by":"publisher","DOI":"10.1259\/dmfr.20130228"},{"key":"b18","doi-asserted-by":"publisher","DOI":"10.1016\/j.joen.2018.03.011"},{"key":"b19","doi-asserted-by":"publisher","DOI":"10.1016\/j.joen.2016.09.008"},{"key":"b20","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2591.2009.01592.x"},{"key":"b21","doi-asserted-by":"publisher","DOI":"10.1111\/iej.12946"},{"key":"b22","doi-asserted-by":"publisher","DOI":"10.1259\/dmfr.20190484"},{"key":"b23","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2591.2007.01247.x"},{"key":"b24","doi-asserted-by":"publisher","DOI":"10.1111\/iej.12450"},{"key":"b25","doi-asserted-by":"publisher","DOI":"10.3390\/dj8030064"}],"container-title":["Dentomaxillofacial Radiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.birpublications.org\/doi\/pdf\/10.1259\/dmfr.20210279","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,1,12]],"date-time":"2024-01-12T15:56:39Z","timestamp":1705074999000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/dmfr\/article\/7261220"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,2,1]]},"references-count":25,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2022,2,1]]}},"alternative-id":["10.1259\/dmfr.20210279"],"URL":"https:\/\/doi.org\/10.1259\/dmfr.20210279","relation":{},"ISSN":["0250-832X","1476-542X"],"issn-type":[{"value":"0250-832X","type":"print"},{"value":"1476-542X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,2,1]]},"article-number":"20210279"}}