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Computer-aided design of polyetheretherketone for application to removable pediatric space maintainers
BACKGROUND: The premature loss of primary teeth is a common problem in pediatric dentistry, resulting in disruption of the arch integrity. Hence, space maintainers (SM) used for maintaining spaces are necessary. However, current methods of making removable space maintainers (RSM) have some limitatio...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7353737/ https://www.ncbi.nlm.nih.gov/pubmed/32650758 http://dx.doi.org/10.1186/s12903-020-01184-6 |
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author | Guo, Hui Wang, Yong Zhao, Yijiao Liu, He |
author_facet | Guo, Hui Wang, Yong Zhao, Yijiao Liu, He |
author_sort | Guo, Hui |
collection | PubMed |
description | BACKGROUND: The premature loss of primary teeth is a common problem in pediatric dentistry, resulting in disruption of the arch integrity. Hence, space maintainers (SM) used for maintaining spaces are necessary. However, current methods of making removable space maintainers (RSM) have some limitations. METHODS: Digital models of dentition defects were obtained by using a scanning technique coupled with laser medical image reconstruction. The digital RSMs were designed using the 3Shape software. They were manufactured using two methods: polyetheretherketone (PEEK), and conventional methods (20 RSMs per group). For qualitative evaluation, the Likert five-point scale was used by 10 experts to obtain a score for 40 RSMs. The spaces between the tissue surfaces of the RSMs and the models were replaced using silicone, and the maximum and mean distances, as well as the standard deviation, were measured. A three-dimensional variation analysis was used to measure these spaces. The student’s t-test and Satterthwaite t-test were used to compare the differences in the spaces for the various materials. RESULTS: The PEEK RSMs were found to fit the models well. In the qualitative assessment, the mean experts’ scores for the PEEK and conventional groups were 1.80 ± 0.40 and 1.82 ± 0.40, and there was no significant difference between the two groups (p = 0.875). In the quantitative assessment, the mean spaces for the PEEK digital RSMs and the conventional RSMs were 44.32 ± 1.75 μm, and 137.36 ± 18.63 μm, respectively, and the differences were statistically significant (p < 0.001). In addition, there were significant differences in the maximum space and the standard deviation between the two groups. CONCLUSION: Digitally designed and integrated RSMs were found to be superior to those produced using the conventional method. 3D variation analysis results showed that the mean distances and standard deviations of the PEEK groups were significantly smaller than those of conventional group (p < 0.01). A PEEK-manufactured RSM produced using CAD/CAM would be extremely suitable for clinical applications. |
format | Online Article Text |
id | pubmed-7353737 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-73537372020-07-15 Computer-aided design of polyetheretherketone for application to removable pediatric space maintainers Guo, Hui Wang, Yong Zhao, Yijiao Liu, He BMC Oral Health Research Article BACKGROUND: The premature loss of primary teeth is a common problem in pediatric dentistry, resulting in disruption of the arch integrity. Hence, space maintainers (SM) used for maintaining spaces are necessary. However, current methods of making removable space maintainers (RSM) have some limitations. METHODS: Digital models of dentition defects were obtained by using a scanning technique coupled with laser medical image reconstruction. The digital RSMs were designed using the 3Shape software. They were manufactured using two methods: polyetheretherketone (PEEK), and conventional methods (20 RSMs per group). For qualitative evaluation, the Likert five-point scale was used by 10 experts to obtain a score for 40 RSMs. The spaces between the tissue surfaces of the RSMs and the models were replaced using silicone, and the maximum and mean distances, as well as the standard deviation, were measured. A three-dimensional variation analysis was used to measure these spaces. The student’s t-test and Satterthwaite t-test were used to compare the differences in the spaces for the various materials. RESULTS: The PEEK RSMs were found to fit the models well. In the qualitative assessment, the mean experts’ scores for the PEEK and conventional groups were 1.80 ± 0.40 and 1.82 ± 0.40, and there was no significant difference between the two groups (p = 0.875). In the quantitative assessment, the mean spaces for the PEEK digital RSMs and the conventional RSMs were 44.32 ± 1.75 μm, and 137.36 ± 18.63 μm, respectively, and the differences were statistically significant (p < 0.001). In addition, there were significant differences in the maximum space and the standard deviation between the two groups. CONCLUSION: Digitally designed and integrated RSMs were found to be superior to those produced using the conventional method. 3D variation analysis results showed that the mean distances and standard deviations of the PEEK groups were significantly smaller than those of conventional group (p < 0.01). A PEEK-manufactured RSM produced using CAD/CAM would be extremely suitable for clinical applications. BioMed Central 2020-07-10 /pmc/articles/PMC7353737/ /pubmed/32650758 http://dx.doi.org/10.1186/s12903-020-01184-6 Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data. |
spellingShingle | Research Article Guo, Hui Wang, Yong Zhao, Yijiao Liu, He Computer-aided design of polyetheretherketone for application to removable pediatric space maintainers |
title | Computer-aided design of polyetheretherketone for application to removable pediatric space maintainers |
title_full | Computer-aided design of polyetheretherketone for application to removable pediatric space maintainers |
title_fullStr | Computer-aided design of polyetheretherketone for application to removable pediatric space maintainers |
title_full_unstemmed | Computer-aided design of polyetheretherketone for application to removable pediatric space maintainers |
title_short | Computer-aided design of polyetheretherketone for application to removable pediatric space maintainers |
title_sort | computer-aided design of polyetheretherketone for application to removable pediatric space maintainers |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7353737/ https://www.ncbi.nlm.nih.gov/pubmed/32650758 http://dx.doi.org/10.1186/s12903-020-01184-6 |
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