Does ambient light affect the accuracy and scanning time of intraoral scans?

Computer-Aided Design Dental Arch Dental Impression Technique Imaging, Three-Dimensional Models, Dental

Journal

The Journal of prosthetic dentistry
ISSN: 1097-6841
Titre abrégé: J Prosthet Dent
Pays: United States
ID NLM: 0376364

Informations de publication

Date de publication:
Jun 2021
Historique:
received: 19 11 2019
revised: 22 03 2020
accepted: 23 03 2020
pubmed: 4 6 2020
medline: 3 6 2021
entrez: 4 6 2020
Statut: ppublish

Résumé

Intraoral scanners (IOSs) are based on light-optical imaging methods. However, little is known about whether the ambient light in dental practices influences the accuracy and scanning time of the IOS. The purpose of this in vitro study was to investigate the influence of different illuminations on the accuracy of 4-unit and complete-arch scans of 6 IOSs. In addition, the required scanning time was evaluated. A reference structure was attached to the first premolars (P) and second molars (M) in both quadrants (L/R) of a maxillary model. The resulting measured distances were M1-P1, M2-P2, P1-P2, and M1-M2. The investigation included 6 IOSs: TRIOS 3 (TRI), Cerec Omnicam (OC), iTero Element (ITE), CS 3600 (CS), Planmeca Emerald (EME), and GC Aadva (AAD). With each IOS, 17 scans at different illuminances (100, 500, 1000, and 5000 lux) were performed (N = 408). The precision and trueness for all distances were determined, and the scanning time was recorded. For statistical analyses, the Levene tests (precision) and 1-way analysis of variance with the post hoc Tukey honestly significant difference and Games-Howell tests (trueness) were calculated. Illuminance significantly influenced the trueness of 4-unit scans for OC, EME, and AAD. TRI, OC, ITE, and CS demonstrated comparable results. AAD (>96 ±22 μm; 1000 lux) and EME (>248 ±88 μm; 500 lux) revealed greater deviations. For complete-arch scans, illuminance did not influence TRI and AAD, but significant variations were detected for ITE, CS, EME, and AAD. The least deviations were achieved with TRI and OC. The scanning time was extended for all IOSs except ITE at more than 500 lux. The shortest scanning times with OC and EME were recorded at 100 lux; with TRI, CS, and AAD at 500 lux; and with ITE at both 100 and 5000 lux. At all illuminances, the fastest scans were obtained with TRI. Ambient light was found to influence the accuracy and scanning time of IOSs. This influence varies depending on the device. For 4-unit scans, the effect was not clinically relevant, but for complete-arch scans, accuracy and scanning time can be improved with appropriate lighting.

Identifiants

DOI: 10.1016/j.prosdent.2020.03.021 PMID: 32487348
pubmed: 32487348
pii: S0022-3913(20)30239-0
doi: 10.1016/j.prosdent.2020.03.021
pii:
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

924-931

Informations de copyright

Copyright © 2020 Editorial Council for the Journal of Prosthetic Dentistry. Published by Elsevier Inc. All rights reserved.

Auteurs

Christian Wesemann (C)

Research Associate, Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders and Department of Orthodontics, Dentofacial Orthopedics and Pedodontics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany. Electronic address: christian.wesemann@charite.de.

Henriette Kienbaum (H)

Doctoral student, Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health and Mesantis 3D Dental-Radiology, Berlin, Germany.

Magdalena Thun (M)

Doctoral student, Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health and Mesantis 3D Dental-Radiology, Berlin, Germany.

Benedikt C Spies (BC)

Associate Professor, Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.

Florian Beuer (F)

Professor and Chair, Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.

Axel Bumann (A)

Professor and Director of 3D Imaging, Mesantis 3D Dental-Radiology, Berlin, Germany.

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Classifications MeSH

questionsmedicales.fr › Sciences de l'information › Affichage de données › Infographie › Conception assistée par ordinateur › Does ambient light affect the accuracy and...
questionsmedicales.fr › Système stomatognathique › Mâchoire › Arcade dentaire › Does ambient light affect the accuracy and...
questionsmedicales.fr › Technique de prise d'empreinte › Does ambient light affect the accuracy and...
questionsmedicales.fr › Sciences de l'information › Méthodologies informatiques › Traitement d'image par ordinateur › Imagerie tridimensionnelle › Does ambient light affect the accuracy and...
questionsmedicales.fr › Sciences de l'information › Sources d'information › Moyens de communication › Matériel d'enseignement › Supports audiovisuels › Maquettes de structure › Modèles anatomiques › Modèles dentaires › Does ambient light affect the accuracy and...