{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,4]],"date-time":"2026-11-04T00:40:52Z","timestamp":1793752852657,"version":"4.6.1"},"reference-count":18,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2025,8,9]],"date-time":"2025-08-09T00:00:00Z","timestamp":1754697600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2025,8,9]],"date-time":"2025-08-09T00:00:00Z","timestamp":1754697600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"DOI":"10.13039\/501100018936","name":"Universit\u00e4tsklinikum Heidelberg","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100018936","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Int J Implant Dent"],"abstract":"<jats:title>Abstract<\/jats:title>\n          <jats:sec>\n            <jats:title>Purpose<\/jats:title>\n            <jats:p>To assess the diagnostic performance of photon-counting computed tomography (PCCT) in the imaging of peri-implant bone structures and to compare it quantitatively and qualitatively to cone-beam computed tomography (CBCT).<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Methods<\/jats:title>\n            <jats:p>Thirty titanium implants were placed in ten porcine mandibles. CBCT and PCCT scans were acquired and compared quantitatively regarding image noise and CT-values. Additionally bone thickness was compared to a gold standard at 60 standardized locations by one calibrated investigator in both modalities. Measurement accuracy was assessed by Bland\u2013Altman analysis. Two experienced raters performed qualitative assessments of anatomic structures around the implant using a 5-point visibility scale. These included the bone-implant interface around the implant surface, the bone at the implant shoulder as well as the oral and vestibular bone lamella. Inter-rater agreement was assessed using ICC.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results<\/jats:title>\n            <jats:p>Across all evaluated implants, CT-values in a soft-tissue region of interest adjacent to the implant increased by 11.7\u2009\u00b1\u20093.9% for CBCT acquisitions, whereas they decreased by 5.3\u2009\u00b1\u20091.3% for PCCT acquisitions. Similarly, image noise in the respective ROIs is increased by a factor of 63\u2009\u00b1\u200913% in case of CBCT acquisitions and only by 23\u2009\u00b1\u20095% in case of PCCT acquisitions. Bone thickness deviations were smaller for PCCT (mean\u2009\u00b1\u2009SD: 0.06\u2009\u00b1\u20090.08\u00a0mm) than for CBCT (0.39\u2009\u00b1\u20090.34\u00a0mm). Qualitative assessments consistently favored PCCT (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.05) with excellent inter-rater reliability (ICC\u2009&gt;\u20090.75 ) in almost all categories.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusions<\/jats:title>\n            <jats:p>PCCT enables superior visualization of peri-implant bone structures with fewer artifacts and improved diagnostic accuracy.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1186\/s40729-025-00640-8","type":"journal-article","created":{"date-parts":[[2025,8,9]],"date-time":"2025-08-09T06:48:26Z","timestamp":1754722106000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Dental photon-counting computed tomography for the assessment of peri-implant structures"],"prefix":"10.1186","volume":"11","author":[{"given":"Maurice","family":"Ruetters","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christian","family":"Mertens","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Holger","family":"Gehrig","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sinan","family":"Sen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ti-Sun","family":"Kim","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hans-Peter","family":"Schlemmer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stefan","family":"Schoenberg","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matthias","family":"Froelich","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marc","family":"Kachelrie\u00df","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stefan","family":"Sawall","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2025,8,9]]},"reference":[{"key":"640_CR1","doi-asserted-by":"crossref","unstructured":"Schlemmer HP. The eye of the CT scanner: the story of learning to see the invisible or from the fluorescent screen to the photon-counting detector. Rofo. 2021.","DOI":"10.1055\/a-1308-2693"},{"issue":"1","key":"640_CR2","doi-asserted-by":"publisher","first-page":"7125","DOI":"10.1038\/s41598-022-11281-x","volume":"12","author":"M Ruetters","year":"2022","unstructured":"Ruetters M, Sen S, Gehrig H, Bruckner T, Kim TS, Lux CJ, et al. Dental imaging using an ultra-high resolution photon-counting CT system. Sci Rep. 2022;12(1):7125.","journal-title":"Sci Rep"},{"issue":"1","key":"640_CR3","doi-asserted-by":"publisher","first-page":"6266","DOI":"10.1038\/s41598-023-33322-9","volume":"13","author":"RC Fontenele","year":"2023","unstructured":"Fontenele RC, Picoli FF, Pinto JC, Coudyzer W, de Faria Vasconcelos K, Farias Gomes A, et al. Feasibility of photon-counting computed tomography as a novel imaging modality for challenging endodontic diagnostic tasks. Sci Rep. 2023;13(1):6266.","journal-title":"Sci Rep"},{"issue":"1","key":"640_CR4","doi-asserted-by":"publisher","first-page":"2978","DOI":"10.1038\/s41598-025-87081-w","volume":"15","author":"S Rau","year":"2025","unstructured":"Rau S, Pichotka MP, Rau A, Reisert M, Altenburger MJ, Schmelzeisen R, et al. Photon-counting-detector CT outperforms state-of-the-art cone-beam and energy-integrated-detector CT in delineation of dental root canals. Sci Rep. 2025;15(1):2978.","journal-title":"Sci Rep"},{"key":"640_CR5","doi-asserted-by":"publisher","first-page":"104859","DOI":"10.1016\/j.jdent.2024.104859","volume":"142","author":"S Sawall","year":"2024","unstructured":"Sawall S, Maier J, Sen S, Gehrig H, Kim TS, Schlemmer HP, et al. Dental imaging in clinical photon-counting CT at a quarter of DVT dose. 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Artefacts in CBCT: a review. Dentomaxillofac Radiol. 2011;40(5):265\u201373.","journal-title":"Dentomaxillofac Radiol"},{"issue":"3","key":"640_CR9","doi-asserted-by":"publisher","first-page":"03TR1","DOI":"10.1088\/1361-6560\/abc5a5","volume":"66","author":"M Danielsson","year":"2021","unstructured":"Danielsson M, Persson M, Sjolin M. Photon-counting x-ray detectors for CT. Phys Med Biol. 2021;66(3):03TR1.","journal-title":"Phys Med Biol"},{"key":"640_CR10","doi-asserted-by":"crossref","unstructured":"Wehrse E, Klein L, Rotkopf LT, Wagner WL, Uhrig M, Heussel CP et al. Photon-counting detectors in computed tomography: from quantum physics to clinical practice. Radiologe. 2021.","DOI":"10.1007\/s00117-021-00812-8"},{"issue":"2","key":"640_CR11","doi-asserted-by":"publisher","first-page":"111","DOI":"10.1097\/RLI.0000000000000616","volume":"55","author":"L Klein","year":"2020","unstructured":"Klein L, Dorn S, Amato C, Heinze S, Uhrig M, Schlemmer HP, et al. 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