{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T19:26:26Z","timestamp":1792005986405,"version":"4.4.0"},"reference-count":29,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2024,5,15]],"date-time":"2024-05-15T00:00:00Z","timestamp":1715731200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Clin Implant Dent Rel Res"],"published-print":{"date-parts":[[2024,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>To assess a newly developed intraoral scan protocol in enhancing the accuracy of complete\u2010arch implant impressions.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>Four impression approaches were applied to the same maxillary edentulous model with 6 implants: (1) intraoral scan (IOS), (2) intraoral scan with scan aid (IOS\u2010SA), (3) calibrated intraoral scan protocol (CISP), and (4) conventional splinted open\u2010tray impression (CONV). Each approach was repeated 10 times, and a direct scan of the model with a desktop scanner was used as a reference model. The alignment of scans and the reference model was conducted by two methods: (a) aligning all scan bodies to evaluate the overall fit, and (b) aligning the first and second scan bodies to simulate the Sheffield fit test for passive fitting of multiple implant\u2010supported prostheses. Linear deviations from the reference model (trueness) and within each group (precision) were analyzed using Python scripts.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>When aligned by all scan bodies, the CISP group exhibited comparable mean trueness (38.33\u2009\u03bcm) and precision (45.97\u2009\u03bcm) to the CONV group (44.30 and 47.92\u2009\u03bcm respectively), both of which significantly outperformed the IOS group (86.82 and 83.17\u2009\u03bcm, respectively). Furthermore, in the virtual Sheffield fit test, the CISP group achieved the highest levels of mean trueness at the end span (121.7\u2009\u03bcm), making a linear deviation reduction of 36.7%, 60%, and 41.4% when compared to the CONV, the IOS, and the IOS\u2010SA groups, respectively. Moreover, the CISP group (104.3\u2009\u03bcm) displayed a remarkable 65, 182, and 86\u2009\u03bcm advantage in precision over the CONV, IOS, and IOS\u2010SA groups, respectively.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>CISP demonstrated comparable accuracy to the gold standard, the conventional splinted open\u2010tray impression. Furthermore, it excelled\u00a0in the virtual passive fitting test.<\/jats:p><\/jats:sec>","DOI":"10.1111\/cid.13338","type":"journal-article","created":{"date-parts":[[2024,5,15]],"date-time":"2024-05-15T12:13:49Z","timestamp":1715775229000},"page":"879-888","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":27,"title":["Calibrated intraoral scan protocol (<scp>CISP<\/scp>) for full\u2010arch implant impressions: An in vitro comparison to conventional impression, intraoral scan, and intraoral scan with scan\u2010aid"],"prefix":"10.1111","volume":"26","author":[{"given":"Junying","family":"Li","sequence":"first","affiliation":[{"name":"Department of Biologic and Materials Sciences, Division of Prosthodontics, School of Dentistry University of Michigan  Ann Arbor Michigan 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