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Investigating inlay designs of class II cavity with deep margin elevation using finite element method
BACKGROUND: This study evaluates the mechanical performance of deep margin elevation technique for carious cavities by considering the shape designs and material selections of inlay using a computational approach combined with the design of experiments method. The goal is to understand the effects o...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8127254/ https://www.ncbi.nlm.nih.gov/pubmed/33993877 http://dx.doi.org/10.1186/s12903-021-01630-z |
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author | Chen, Yung-Chung Lin, Chi-Lun Hou, Chun-Hsien |
author_facet | Chen, Yung-Chung Lin, Chi-Lun Hou, Chun-Hsien |
author_sort | Chen, Yung-Chung |
collection | PubMed |
description | BACKGROUND: This study evaluates the mechanical performance of deep margin elevation technique for carious cavities by considering the shape designs and material selections of inlay using a computational approach combined with the design of experiments method. The goal is to understand the effects of the design parameters on the deep margin elevation technique and provide design guidelines from the biomechanics perspective. METHODS: Seven geometric design parameters for defining an inlay’s shape of a premolar were specified, and the influence of cavity shape and material selection on the overall stress distribution was investigated via automated modelling. Material selection included composite resin, ceramic, and lithium disilicate. Finite element analysis was performed to evaluate the mechanical behavior of the tooth and inlay under a compressive load. Next, the analysis of variance was conducted to identify the parameters with a significant effect on the stress occurred in the materials. Finally, the response surface method was used to analyze the stress responses of the restored tooth with different design parameters. RESULTS: The restored tooth with a larger isthmus width demonstrated superior mechanical performance in all three types of inlay materials, while the influence of other design parameters varied with the inlay material selection. The height of the deep margin elevation layer insignificantly affected the mechanical performance of the restored tooth. CONCLUSIONS: A proper geometric design of inlay enhances the mechanical performance of the restored tooth and could require less volume of the natural dentin to be excavated. Furthermore, under the loading conditions evaluated in this study, the deep margin elevation layer did not extensively affect the strength of the tooth structure. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12903-021-01630-z. |
format | Online Article Text |
id | pubmed-8127254 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-81272542021-05-17 Investigating inlay designs of class II cavity with deep margin elevation using finite element method Chen, Yung-Chung Lin, Chi-Lun Hou, Chun-Hsien BMC Oral Health Research BACKGROUND: This study evaluates the mechanical performance of deep margin elevation technique for carious cavities by considering the shape designs and material selections of inlay using a computational approach combined with the design of experiments method. The goal is to understand the effects of the design parameters on the deep margin elevation technique and provide design guidelines from the biomechanics perspective. METHODS: Seven geometric design parameters for defining an inlay’s shape of a premolar were specified, and the influence of cavity shape and material selection on the overall stress distribution was investigated via automated modelling. Material selection included composite resin, ceramic, and lithium disilicate. Finite element analysis was performed to evaluate the mechanical behavior of the tooth and inlay under a compressive load. Next, the analysis of variance was conducted to identify the parameters with a significant effect on the stress occurred in the materials. Finally, the response surface method was used to analyze the stress responses of the restored tooth with different design parameters. RESULTS: The restored tooth with a larger isthmus width demonstrated superior mechanical performance in all three types of inlay materials, while the influence of other design parameters varied with the inlay material selection. The height of the deep margin elevation layer insignificantly affected the mechanical performance of the restored tooth. CONCLUSIONS: A proper geometric design of inlay enhances the mechanical performance of the restored tooth and could require less volume of the natural dentin to be excavated. Furthermore, under the loading conditions evaluated in this study, the deep margin elevation layer did not extensively affect the strength of the tooth structure. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12903-021-01630-z. BioMed Central 2021-05-16 /pmc/articles/PMC8127254/ /pubmed/33993877 http://dx.doi.org/10.1186/s12903-021-01630-z Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/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/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://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 Chen, Yung-Chung Lin, Chi-Lun Hou, Chun-Hsien Investigating inlay designs of class II cavity with deep margin elevation using finite element method |
title | Investigating inlay designs of class II cavity with deep margin elevation using finite element method |
title_full | Investigating inlay designs of class II cavity with deep margin elevation using finite element method |
title_fullStr | Investigating inlay designs of class II cavity with deep margin elevation using finite element method |
title_full_unstemmed | Investigating inlay designs of class II cavity with deep margin elevation using finite element method |
title_short | Investigating inlay designs of class II cavity with deep margin elevation using finite element method |
title_sort | investigating inlay designs of class ii cavity with deep margin elevation using finite element method |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8127254/ https://www.ncbi.nlm.nih.gov/pubmed/33993877 http://dx.doi.org/10.1186/s12903-021-01630-z |
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