Gintaute, A, Keeling, AJ orcid.org/0000-0003-4598-3744, Osnes, CA orcid.org/0000-0003-4652-3854 et al. (3 more authors) (2020) Precision of maxillo-mandibular registration with intraoral scanners in vitro. Journal of Prosthodontic Research, 64 (2). pp. 114-119. ISSN 1883-1958
Abstract
Purpose: To compare the precision of maxillo-mandibular registration and resulting full arch occlusion produced by three intraoral scanners in vitro.
Methods: Six dental models (groups A–F) were scanned five times with intraoral scanners (CEREC, TRIOS, PLANMECA), producing both full arch and two buccal maxillo-mandibular scans. Total surface area of contact points (defined as regions within 0.1 mm and all mesh penetrations) was measured, and the distances between four pairs of key points were compared, each two in the posterior and anterior.
Results: Total surface area of contact points varied significantly among scanners across all groups. CEREC produced the smallest contact surface areas (5.7–25.3 mm2), while PLANMECA tended to produce the largest areas in each group (22.2–60.2 mm2). Precision of scanners, as measured by the 95% CI range, varied from 0.1–0.9 mm for posterior key points. For anterior key points the 95% CI range was smaller, particularly when multiple posterior teeth were still present (0.04–0.42 mm). With progressive loss of posterior units (groups D–F), differences in the anterior occlusion among scanners became significant in five out of six groups (D–F left canines and D, F right canines, p < 0.05).
Conclusions: Maxillo-mandibular registrations from three intraoral scanners created significantly different surface areas of occlusal contact. Posterior occlusions revealed lower precision for all scanners than anterior. CEREC tended towards incorrect posterior open bites, whilst TRIOS was most consistent in reproducing occluding units.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 Japan Prosthodontic Society. Published by Elsevier Ltd. All rights reserved. This is an author produced version of an article published in Journal of Prosthodontic Research. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Intraoral optical scan (IOS); Dental occlusion [MeSH]; Bite registration; Digital dentistry; Precision |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Medicine and Health (Leeds) > School of Dentistry (Leeds) > Restorative Dentistry (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 29 Oct 2019 16:01 |
Last Modified: | 04 Aug 2020 00:38 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.jpor.2019.05.006 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:152693 |
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