{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,14]],"date-time":"2026-09-14T01:04:33Z","timestamp":1789347873198,"version":"build-2803163510"},"reference-count":36,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2026,1,9]],"date-time":"2026-01-09T00:00:00Z","timestamp":1767916800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,9]],"date-time":"2026-01-09T00:00:00Z","timestamp":1767916800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100002322","name":"Coordena\u00e7\u00e3o de Aperfei\u00e7oamento de Pessoal de N\u00edvel Superior","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100002322","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Int Endodontic J"],"published-print":{"date-parts":[[2026,4]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>Photon\u2010counting computed tomography (PCCT) represents a major innovation in X\u2010ray detection technology, offering improved signal efficiency and reduced electronic noise compared with cone\u2010beam computed tomography (CBCT), which can enhance image quality. This study aimed to evaluate the diagnostic performance of PCCT in detecting vertical root fractures (VRF), in comparison with four CBCT devices.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methodology<\/jats:title>\n                    <jats:p>\n                      Eighteen single\u2010rooted teeth were endodontically treated, and VRF was induced in eight of them. Each tooth was individually placed into the mandibular first premolar empty socket of an anthropomorphic phantom and scanned under three conditions: without a metal post, with a nickel\u2010chromium metal post (Ni\u2010Cr), and with a cobalt\u2010chromium metal post (Co\u2010Cr) in five CT devices: the NAEOTOM Alpha PCCT (Siemens Healthineers) device and four CBCT devices (3D Accuitomo 170\u2014Morita, Veraview X800\u2014Morita, NewTom VGi evo\u2014NewTom, and Carestream 9600\u2014Carestream). The highest\u2010resolution protocol available on each device was used, resulting in a total of 270 scans. Five experienced dentomaxillofacial radiologists independently and blindly evaluated the scans using a five\u2010point confidence scale. Diagnostic accuracy was assessed by calculating the area under the ROC curve (AUC), sensitivity, and specificity, with results compared by two\u2010way ANOVA with post hoc Tukey's test (\n                      <jats:italic>\u03b1<\/jats:italic>\n                      \u2009=\u20090.05).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      NewTom VGi and PCCT devices showed significantly higher AUC values than the Veraview X800, regardless of the metal post material (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.05). CS9600 and PCCT devices exhibited significantly higher sensitivity values in diagnosing with Ni\u2010Cr posts than the Accuitomo 3D and Veraview X800 devices (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.05). With the Co\u2010Cr metal post, the NewTom VGi, CS9600, and PCCT devices showed significantly higher sensitivity values compared to the Veraview X800 device (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.05). There were no statistically significant differences in specificity, regardless of the CT device or metal post material (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&gt;\u20090.05).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>The NEAOTOM Alpha PCCT showed high diagnostic accuracy for VRF detection in an ex\u00a0vivo model, comparable to high\u2010resolution CBCT devices, highlighting its diagnostic performance under controlled ex\u00a0vivo conditions.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/iej.70095","type":"journal-article","created":{"date-parts":[[2026,1,9]],"date-time":"2026-01-09T10:40:32Z","timestamp":1767955232000},"page":"718-727","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Photon\u2010Counting CT for Diagnosing Vertical Root Fractures in Teeth With Metal Posts: An Ex\u00a0Vivo Comparative Analysis With Four CBCT Devices"],"prefix":"10.1111","volume":"59","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8448-6671","authenticated-orcid":false,"given":"Renata M. S.","family":"Leal","sequence":"first","affiliation":[{"name":"Department of Restorative Dentistry Federal University of Paran\u00e1  Paran\u00e1 Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9777-4197","authenticated-orcid":false,"given":"Fernanda B.","family":"Fagundes","sequence":"additional","affiliation":[{"name":"Department of Oral Diagnosis, Area of Dental Radiology, Piracicaba Dental School State University of Campinas (UNICAMP)  S\u00e3o Paulo Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2300-3143","authenticated-orcid":false,"given":"Maria F. S. A.","family":"Bortoletto","sequence":"additional","affiliation":[{"name":"Department of Oral Diagnosis, Area of Dental Radiology, Piracicaba Dental School State University of Campinas (UNICAMP)  S\u00e3o Paulo Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2096-0688","authenticated-orcid":false,"given":"Samuel C.","family":"Kluthcovsky","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering Federal University of Paran\u00e1  Paran\u00e1 Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6406-7496","authenticated-orcid":false,"given":"Walter","family":"Coudyzer","sequence":"additional","affiliation":[{"name":"Department of Radiology University Hospitals Leuven  Leuven Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3203-0899","authenticated-orcid":false,"given":"Bruno 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