Evaluating the accuracy of three intraoral scanners using models containing different numbers of crown-prepared abutments
| Autor: | Huiqiang Sun, Xiaojie Yin, Ting Zhang, Ting Wei, Yawen Zhao, Mengyang Jiang |
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| Rok vydání: | 2022 |
| Předmět: |
Dental models
Scanner Computer science medicine.medical_treatment Computer-aided design RK1-715 Data accuracy 030206 dentistry Prosthodontics Crown (dentistry) 03 medical and health sciences Dental arch 0302 clinical medicine medicine.anatomical_structure Dentistry 030220 oncology & carcinogenesis medicine Original Article Dental impression technique General Dentistry Anterior teeth Biomedical engineering |
| Zdroj: | Journal of Dental Sciences Journal of Dental Sciences, Vol 17, Iss 1, Pp 204-210 (2022) |
| ISSN: | 1991-7902 |
| DOI: | 10.1016/j.jds.2021.04.017 |
| Popis: | Background/purpose The scanning accuracy of intraoral scanners’ data collection plays a key role in the success of the final treatment. However, few studies start from scanning technology itself to directly evaluate it. The aim of this study was to evaluate the scanning accuracy of three intraoral scanners, to provide a reference for relevant research and clinical applications. Materials and methods Six types of resin models containing different numbers of crown-prepared abutments were three-dimensionally printed, and a model scanner, as well as three intraoral scanners, were used to digitally scan the six models. The obtained data were uploaded to three-dimensional reverse software for registration and comparison, and the accuracy of the models were analyzed. Results When scanning the six groups of models, the Omnicam outperformed both the TRIOS and iTero in terms of accuracy in all groups except the second molar group. The TRIOS and iTero scanners also exhibited decreased degrees of accuracy when scanning the long dental arch. The accuracy decreased as the scanning scope increased; however, the Omnicam scanner exhibited a relatively high degree of accuracy when scanning the three-unit fixed bridge and anterior areas. All scanners exhibited the lowest degree of accuracy when scanning the full-arch model. Certain deviations were observed, and the scanning areas at the incisal edges of the anterior teeth and end of the dental arch exhibited relatively large deviations. Conclusion With the model scanner data as reference, the scanning accuracy of the three scanners exhibited differences and certain deviations, which were within clinical tolerance. |
| Databáze: | OpenAIRE |
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