Optimum design of reference points distribution in three-dimensional reconstruction of dental model in intercuspal position
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Published:2021-11-03
Issue:1
Volume:21
Page:
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ISSN:1472-6831
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Container-title:BMC Oral Health
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language:en
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Short-container-title:BMC Oral Health
Author:
Wu Yujia,Hu Zhewen,Zhang Xinyue,Bai Hefei,Sun Yuchun,Fan Baolin
Abstract
Abstract
Purpose
The scanning of plaster models for three-dimensional (3D) construction requires their rigid fixation in the intercuspal position. Factors such as installation, motion, and scanning procedures influenced the accuracy of this method, which ultimately influence the results. Therefore, the present study attempted to provide an optimal and accurate method with less complex procedures and a more accessible equipment for determining the intercuspal relation in the 3D occlusal construction of dental models.
Methods
A pair of plastic mounting plates that could be directly attached to a mechanical articulator was designed and 3D printed. Nine axial hemispherical concaves were introduced on the axial surface of each plate. The rigidly fixed maxillary and mandibular dental models were scanned directly. The distances DR between nine pairs of concaves on both mounting plates adhered to the maxillary and mandibular sections of the articulator were measured using the three-coordinate measuring machine Faro Edge as the reference. The present study comprised seven test groups varying in number and location. Assessing the reference points from each of the seven groups performed the 3D construction. The Geomagic Studio software was used to construct the concaves of digital casts, and the distances DM between the pairs of concaves were measured as test values. Variable differences between DR and DM were analyzed.
Results
An optimum distribution scheme was obtained for reference point registration by quantitatively evaluating accuracy levels of the 3D constructions of different reference point distribution patterns. This scheme can serve as a reference for related studies and dental clinic operations.
Conclusions
Three-dimensional construction of the intercuspal relation during scanning of the maxillary and mandibular models with an accuracy of 0.046 mm ± 0.009 mm can be achieved using the improved design of mounting plates.
Funder
National Nature Science Foundation of China
he Capital’s Funds for Health Improvement and Research
the Fund of Peking University Hospital of Stomatology
the Program of New Clinical Techniques and Therapies of Peking University School and Hospital of Stomatology
Publisher
Springer Science and Business Media LLC
Subject
General Dentistry
Reference22 articles.
1. Albuha Al-Mussawi RM, Farid F. Computer-based technologies in dentistry: types and applications. J Dent (Tehran). 2016;13:215–22.
2. Grant GT, Campbell SD, Masri RM, Andersen MR. Glossary of digital dental terms: American College of Prosthodontists. J Prosthodont. 2016;25:S2-9.
3. Van Noort R. The future of dental devices is digital. Dent Mater. 2012;28:3–12.
4. Miyazaki T, Hotta Y, Kunii J, Kuriyama S, Tamaki Y. A review of dental CAD/CAM: current status and future perspectives from 20 years of experience. Dent Mater J. 2009;28:44–56.
5. Jain R, Takkar R, Jain G, Takkar R, Deora N, Jain PR. CAD-CAM the future of digital dentistry: a review. Ann Prosthodont Restor Dent. 2016;2:33–6.
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