{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T05:46:50Z","timestamp":1790142410203,"version":"4.0.1"},"reference-count":35,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2024,3,27]],"date-time":"2024-03-27T00:00:00Z","timestamp":1711497600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J Esthet Restor Dent"],"published-print":{"date-parts":[[2024,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Aim<\/jats:title><jats:p>The aim of this study was to compare the accuracy of full\u2010arch conventional implant impressions using two different materials (A\u2010silicone and polyether) to full\u2010arch digital implant impressions produced from two intraoral scanning devices.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>A master model was fabricated representing an edentulous mandible with four implants with internal connection placed at the sites of canines and first molars. The anterior implants were parallel to the residual ridge, while the two posterior implants had an angulation of 15\u00b0 to the distal and 15\u00b0 to the lingual respectively. The conventional technique was performed with open\u2010tray of non\u2010splinted impression copings. Two different impression materials were used, A\u2010silicone and polyether at monophase medium body consistencies. The digital impressions were obtained with the use of two different intraoral scanners, after the connection of scan bodies. A total of 10 impressions were produced for each of the four experimental groups. The conventional models as well as the master model were digitized using a high\u2010resolution laboratory scanner. The STL files of the models and of the intraoral impressions were imported in a powerful superimposition software, for the conduction of measurements in pairs of files. The software calculated the 3D deviations, as well as the linear and angular displacements among scan bodies at the digital files. For \u201ctrueness\u201d measurements every STL file of each experimental group was superimposed to the digital master model, while for \u201cprecision\u201d measurements all STL files of each experimental group were superimposed to each other.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results and Conclusions<\/jats:title><jats:p><jats:list list-type=\"bullet\">\n<jats:list-item><jats:p>The accuracy of full arch mandibular implant impressions was influenced both by the impression technique used (conventional vs. digital) and the impression material used (A\u2010silicone vs. polyether) or the intraoral scanner used (Trios vs. Heron).<\/jats:p><\/jats:list-item>\n<jats:list-item><jats:p>In terms of \u201ctrueness,\u201d A\u2010silicone showed the highest impression accuracy with the lowest deviation values, followed by polyether and Trios, but the differences between the three groups were in the majority not statistically significant. Heron showed statistically lower accuracy results in all measurements compared to the other groups.<\/jats:p><\/jats:list-item>\n<jats:list-item><jats:p>In terms of \u201cprecision\u201d, conventional impressions with the use of A\u2010Silicone or polyether were statistically significantly superior to digital impressions with either scanner. A\u2010Silicone and polyether showed no statistically significant difference between them.<\/jats:p><\/jats:list-item>\n<\/jats:list><\/jats:p><\/jats:sec>","DOI":"10.1111\/jerd.13227","type":"journal-article","created":{"date-parts":[[2024,3,27]],"date-time":"2024-03-27T13:10:21Z","timestamp":1711545021000},"page":"1179-1198","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["In vitro comparison of accuracy between conventional and digital impression using elastomeric materials and two intra\u2010oral scanning devices"],"prefix":"10.1111","volume":"36","author":[{"given":"Eirini","family":"Palantza","sequence":"first","affiliation":[{"name":"Department of Prosthodontics, Dental School National and Kapodistrian University of Athens  Athens Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nikitas","family":"Sykaras","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics, Dental School National and Kapodistrian University of Athens  Athens Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Panagiotis","family":"Zoidis","sequence":"additional","affiliation":[{"name":"Division Prosthodontics, Department of Restorative Dentistry College of Dentistry, University of Florida  Gainsville Florida USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5696-5413","authenticated-orcid":false,"given":"Stefanos","family":"Kourtis","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics, Dental School National and Kapodistrian University of Athens  Athens Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2024,3,27]]},"reference":[{"issue":"4","key":"e_1_2_10_2_1","first-page":"550","article-title":"Accuracy of computerized and conventional impression\u2010making procedures for multiple straight and tilted dental 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