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Trueness and precision of intraoral scanners in the maxillary dental arch: an in vivo analysis

Intraoral three-dimensional imaging has gained great interest in dentistry as a mean to generate risk-free imprints of the oral cavity. Accurate intraoral models facilitate proper diagnosis, growth assessment, outcome evaluation, and 3D printing applications. Here, in an actual clinical setup on 12...

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Autores principales: Winkler, Jonas, Gkantidis, Nikolaos
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6981254/
https://www.ncbi.nlm.nih.gov/pubmed/31980724
http://dx.doi.org/10.1038/s41598-020-58075-7
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author Winkler, Jonas
Gkantidis, Nikolaos
author_facet Winkler, Jonas
Gkantidis, Nikolaos
author_sort Winkler, Jonas
collection PubMed
description Intraoral three-dimensional imaging has gained great interest in dentistry as a mean to generate risk-free imprints of the oral cavity. Accurate intraoral models facilitate proper diagnosis, growth assessment, outcome evaluation, and 3D printing applications. Here, in an actual clinical setup on 12 subjects, we evaluate the trueness and precision of two widely used intraoral scanners (TRIOS 3, 3Shape and CS 3600, Carestream), using an industrial scanner (Artec Space Spider) as a reference. Surface based matching was implemented using the iterative closest point algorithm (ICP). Trueness of the intraoral scans was analyzed by measuring their distance from the reference scan, in the upper buccal front area. Precision was tested through the distance of repeated scans regarding the whole dental arch, following superimpositions in the buccal front and in the whole dental arch area. TRIOS 3 displayed slightly higher precision (approximately 10 μm) compared to CS 3600, only after superimposition on the whole dental arch (p < 0.05). Both intraoral scanners showed good performance and comparable trueness (median: 0.0154 mm; p> 0.05). However, in individual cases and in various, not spatially defined areas, higher imprecision was evident. Thus, the intraoral scanners’ appropriateness for highly demanding, spatially extended clinical applications remains questionable.
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spelling pubmed-69812542020-01-30 Trueness and precision of intraoral scanners in the maxillary dental arch: an in vivo analysis Winkler, Jonas Gkantidis, Nikolaos Sci Rep Article Intraoral three-dimensional imaging has gained great interest in dentistry as a mean to generate risk-free imprints of the oral cavity. Accurate intraoral models facilitate proper diagnosis, growth assessment, outcome evaluation, and 3D printing applications. Here, in an actual clinical setup on 12 subjects, we evaluate the trueness and precision of two widely used intraoral scanners (TRIOS 3, 3Shape and CS 3600, Carestream), using an industrial scanner (Artec Space Spider) as a reference. Surface based matching was implemented using the iterative closest point algorithm (ICP). Trueness of the intraoral scans was analyzed by measuring their distance from the reference scan, in the upper buccal front area. Precision was tested through the distance of repeated scans regarding the whole dental arch, following superimpositions in the buccal front and in the whole dental arch area. TRIOS 3 displayed slightly higher precision (approximately 10 μm) compared to CS 3600, only after superimposition on the whole dental arch (p < 0.05). Both intraoral scanners showed good performance and comparable trueness (median: 0.0154 mm; p> 0.05). However, in individual cases and in various, not spatially defined areas, higher imprecision was evident. Thus, the intraoral scanners’ appropriateness for highly demanding, spatially extended clinical applications remains questionable. Nature Publishing Group UK 2020-01-24 /pmc/articles/PMC6981254/ /pubmed/31980724 http://dx.doi.org/10.1038/s41598-020-58075-7 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Winkler, Jonas
Gkantidis, Nikolaos
Trueness and precision of intraoral scanners in the maxillary dental arch: an in vivo analysis
title Trueness and precision of intraoral scanners in the maxillary dental arch: an in vivo analysis
title_full Trueness and precision of intraoral scanners in the maxillary dental arch: an in vivo analysis
title_fullStr Trueness and precision of intraoral scanners in the maxillary dental arch: an in vivo analysis
title_full_unstemmed Trueness and precision of intraoral scanners in the maxillary dental arch: an in vivo analysis
title_short Trueness and precision of intraoral scanners in the maxillary dental arch: an in vivo analysis
title_sort trueness and precision of intraoral scanners in the maxillary dental arch: an in vivo analysis
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6981254/
https://www.ncbi.nlm.nih.gov/pubmed/31980724
http://dx.doi.org/10.1038/s41598-020-58075-7
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