In vitro comparison of the accuracy of four intraoral scanners and three conventional impression methods for two neighboring implants
Author
Roig, Elena
Garza Garza, Luis Carlos
Maldonado, Natalia
Maia, Paulo
Costa, Santiago
Roig, Miguel
ESPONA, JOSE
Publication date
2020ISSN
1932-6203
Abstract
Purpose: To determine whether the accuracy of two-implant model impressions taken with optical scanners was inferior to that of those taken with elastomeric materials. Materials and Methods: Impressions of a resin reference model with two almost parallel implants were taken using three elastomeric impressions (closed tray technique, open tray nonsplinted technique and open tray splinted technique) and scanned with four optical scanners (CEREC Omnicam, 3M True Definition Scanner, 3Shape TRIOS3 and Carestream CS 3600). STL files of the different methods were superimposed and analyzed with control software (Geomagic Control X, 3D systems) to determine the mean deviation between scans. Results: Compared to elastomeric impressions, optical impressions showed a significantly improved mean precision. TRIOS3 and CS3600 showed a significantly improved mean trueness compared to that of closed tray, CEREC Omnicam and TrueDefinition. All methods showed a certain degree of implant rotation over their axes, which was significantly higher in the closed tray and the open tray nonsplinted techniques. Conclusions: Optical impressions, taken under these in vitro conditions, showed improved accuracy compared with that of elastomeric impressions.
Document Type
Article
Document version
Published version
Language
English
Subject (CDU)
616.3 - Pathology of the digestive system. Complaints of the alimentary canal
Keywords
Implants dentals
Escàners òptics
Resina
Pròtesis d'implants
Implantes dentales
Escáneres ópticos
Resina
Prótesis de implantes
Dental implants
Optical scanners
Resin
Implant prostheses
Pages
16
Publisher
Public Library of Science
Collection
15;2
Is part of
PLoS ONE
Citation
Roig, Elena; Garza, Luis Carlos; Álvarez-Maldonado, Natalia [et al.]. In vitro comparison of the accuracy of four intraoral scanners and three conventional impression methods for two neighboring implants. PLoS ONE, 2020, 15(2), e0228266. Disponible en: <https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0228266>. Fecha de acceso: 21 dic. 2021. DOI: 10.1371/journal.pone.0228266
This item appears in the following Collection(s)
- Odontologia [234]
Rights
© 2020 Roig et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Except where otherwise noted, this item's license is described as https://creativecommons.org/licenses/by/4.0/