Optimum design of reference points distribution in three-dimensional reconstruction of dental model in intercuspal position

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,...

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Autores principales:	Yujia Wu, Zhewen Hu, Xinyue Zhang, Hefei Bai, Yuchun Sun, Baolin Fan
Formato:	article
Lenguaje:	EN
Publicado:	BMC 2021
Materias:	3D scanning Dental models Digital technology Imaging Three-dimensional Intercuspal relation Dentistry RK1-715
Acceso en línea:	https://doaj.org/article/43ba02822a6b410f9cc4200ecc7dab20
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spelling	oai:doaj.org-article:43ba02822a6b410f9cc4200ecc7dab202021-11-08T11:04:02ZOptimum design of reference points distribution in three-dimensional reconstruction of dental model in intercuspal position10.1186/s12903-021-01919-z1472-6831https://doaj.org/article/43ba02822a6b410f9cc4200ecc7dab202021-11-01T00:00:00Zhttps://doi.org/10.1186/s12903-021-01919-zhttps://doaj.org/toc/1472-6831Abstract 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 D R 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 D M between the pairs of concaves were measured as test values. Variable differences between D R and D M 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.Yujia WuZhewen HuXinyue ZhangHefei BaiYuchun SunBaolin FanBMCarticle3D scanningDental modelsDigital technologyImagingThree-dimensionalIntercuspal relationDentistryRK1-715ENBMC Oral Health, Vol 21, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	3D scanning Dental models Digital technology Imaging Three-dimensional Intercuspal relation Dentistry RK1-715
spellingShingle	3D scanning Dental models Digital technology Imaging Three-dimensional Intercuspal relation Dentistry RK1-715 Yujia Wu Zhewen Hu Xinyue Zhang Hefei Bai Yuchun Sun Baolin Fan Optimum design of reference points distribution in three-dimensional reconstruction of dental model in intercuspal position
description	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 D R 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 D M between the pairs of concaves were measured as test values. Variable differences between D R and D M 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.
format	article
author	Yujia Wu Zhewen Hu Xinyue Zhang Hefei Bai Yuchun Sun Baolin Fan
author_facet	Yujia Wu Zhewen Hu Xinyue Zhang Hefei Bai Yuchun Sun Baolin Fan
author_sort	Yujia Wu
title	Optimum design of reference points distribution in three-dimensional reconstruction of dental model in intercuspal position
title_short	Optimum design of reference points distribution in three-dimensional reconstruction of dental model in intercuspal position
title_full	Optimum design of reference points distribution in three-dimensional reconstruction of dental model in intercuspal position
title_fullStr	Optimum design of reference points distribution in three-dimensional reconstruction of dental model in intercuspal position
title_full_unstemmed	Optimum design of reference points distribution in three-dimensional reconstruction of dental model in intercuspal position
title_sort	optimum design of reference points distribution in three-dimensional reconstruction of dental model in intercuspal position
publisher	BMC
publishDate	2021
url	https://doaj.org/article/43ba02822a6b410f9cc4200ecc7dab20
work_keys_str_mv	AT yujiawu optimumdesignofreferencepointsdistributioninthreedimensionalreconstructionofdentalmodelinintercuspalposition AT zhewenhu optimumdesignofreferencepointsdistributioninthreedimensionalreconstructionofdentalmodelinintercuspalposition AT xinyuezhang optimumdesignofreferencepointsdistributioninthreedimensionalreconstructionofdentalmodelinintercuspalposition AT hefeibai optimumdesignofreferencepointsdistributioninthreedimensionalreconstructionofdentalmodelinintercuspalposition AT yuchunsun optimumdesignofreferencepointsdistributioninthreedimensionalreconstructionofdentalmodelinintercuspalposition AT baolinfan optimumdesignofreferencepointsdistributioninthreedimensionalreconstructionofdentalmodelinintercuspalposition
_version_	1718442417387995136

Optimum design of reference points distribution in three-dimensional reconstruction of dental model in intercuspal position

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