{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T00:00:51Z","timestamp":1791158451118,"version":"4.1.0"},"reference-count":37,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2021,5,26]],"date-time":"2021-05-26T00:00:00Z","timestamp":1621987200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Ministry of Trade, Industry and Energy(MOTIE) and Korea Institute for Advancement of Tech-nology(KIAT)","award":["P0015338"],"award-info":[{"award-number":["P0015338"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>The purpose of this in vitro study was to compare the accuracy of the proximal and occlusal contacts of single implant crowns fabricated with four data capture methods. The resin models were mounted on an articulator, digitized using a laboratory scanner, and saved as a standard tessellation language (STL) file to serve as the master reference model (MRM). Two different intraoral scan body (ISB) systems were evaluated: polyetheretherketone (PEEK) short scan body (SSB) and PEEK long scan body (LSB) (n = 12). The digital impressions (SSB and LSB) were acquired using an intraoral scanner with ISB. Two different conventional techniques were also evaluated: PEEK short scan body with coping plastic cap (CPC) and pick-up coping (PUC) (n = 12). The implant impressions (CPC and PUC) were recorded using a conventional impression technique. The crown and abutment were fabricated with a milling machine and then placed on the resin model and scanned using a laboratory scanner. The scanned files were saved as STL files to serve as test datasets. The MRM and test datasets were superimposed, and the mesial, distal, and occlusal distances were calculated using a 3D inspection software and statistically analyzed using the Kruskal\u2013Wallis H test (\u03b1 = 0.05). The direct data capture group had more accurate contact points on the three surfaces, with mesial contact of 64.7 (12.8) \u00b5m followed by distal contact of 65.4 (15) \u00b5m and occlusal contact of 147 (35.8) \u00b5m in the SSB group, and mesial contact of 84.9 (22.6) \u00b5m followed by distal contact of 69.5 (19.2) \u00b5m and occlusal contact of 115.9 (27.7) \u00b5m in the LSB group (p &lt; 0.001). The direct data capture groups are closer to the ideal proximal and occlusal contacts for single implant crowns than the indirect data capture groups. There was no difference in the accuracy between the two types of scan body (SSB and LSB).<\/jats:p>","DOI":"10.3390\/ma14112843","type":"journal-article","created":{"date-parts":[[2021,5,26]],"date-time":"2021-05-26T10:30:32Z","timestamp":1622025032000},"page":"2843","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Accuracy of Proximal and Occlusal Contacts of Single Implant Crowns Fabricated Using Different Digital Scan Methods: An In Vitro Study"],"prefix":"10.3390","volume":"14","author":[{"given":"Xi","family":"Ren","sequence":"first","affiliation":[{"name":"Department of Prosthodontics, School of Dentistry, Kyungpook National University, Daegu 41940, Korea"},{"name":"Department of Prosthodontics, Shanghai YuJia Dental Clinic, 370 Luochuan East Road, Jing\u2019an District, Shanghai 200002, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3177-8005","authenticated-orcid":false,"given":"Keunbada","family":"Son","sequence":"additional","affiliation":[{"name":"Advanced Dental Device Development Institute, Kyungpook National University, Daegu 41940, Korea"},{"name":"Department of Dental Science, Graduate School, Kyungpook National University, Daegu 41940, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kyu-Bok","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics, School of Dentistry, Kyungpook National University, Daegu 41940, Korea"},{"name":"Advanced Dental Device Development Institute, Kyungpook National University, Daegu 41940, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,5,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"7S","DOI":"10.14219\/jada.archive.2006.0398","article-title":"The evolution of the CEREC system","volume":"137","year":"2006","journal-title":"J. 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Cancer"}],"container-title":["Materials"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1996-1944\/14\/11\/2843\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T06:08:06Z","timestamp":1760162886000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1996-1944\/14\/11\/2843"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,5,26]]},"references-count":37,"journal-issue":{"issue":"11","published-online":{"date-parts":[[2021,6]]}},"alternative-id":["ma14112843"],"URL":"https:\/\/doi.org\/10.3390\/ma14112843","relation":{},"ISSN":["1996-1944"],"issn-type":[{"value":"1996-1944","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,5,26]]}}}