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Biomechanical Analysis of Grafted and Nongrafted Maxillary Sinus Augmentation in the Atrophic Posterior Maxilla with Three-Dimensional Finite Element Method

This study is aimed at determining the optimal sinus augmentation approach considering the poor bone condition in the zone of atrophic posterior maxilla. A series of simplified maxillary segment models varying in residual bone height (RBH) and bone quality were established. A 10 mm standard implant...

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Autores principales: Wang, Xuan, Zhang, Tianqi, Yang, Enli, Gong, Zhiyuan, Shen, Hongzhou, Wu, Haiwei, Zhang, Dongsheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7556061/
https://www.ncbi.nlm.nih.gov/pubmed/33093935
http://dx.doi.org/10.1155/2020/8419319
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author Wang, Xuan
Zhang, Tianqi
Yang, Enli
Gong, Zhiyuan
Shen, Hongzhou
Wu, Haiwei
Zhang, Dongsheng
author_facet Wang, Xuan
Zhang, Tianqi
Yang, Enli
Gong, Zhiyuan
Shen, Hongzhou
Wu, Haiwei
Zhang, Dongsheng
author_sort Wang, Xuan
collection PubMed
description This study is aimed at determining the optimal sinus augmentation approach considering the poor bone condition in the zone of atrophic posterior maxilla. A series of simplified maxillary segment models varying in residual bone height (RBH) and bone quality were established. A 10 mm standard implant combined with two types of maxillary sinus augmentation methods was applied with the RBH, which was less than 10 mm in the maxilla. The maximal equivalent von Mises (EQV) stress in residual bone was evaluated. Bone quality had an enormous impact on the stress magnitude of supporting bone. Applying sinus augmentation combined with grafts was suitable for stress distribution, and high-stiffness graft performed better than low-stiffness one. For 7 mm and 5 mm atrophic maxilla, nongrafted maxillary sinus augmentation was feasible in D3 bone. Poor bone quality was a negative factor for the implant in the region of atrophic posterior maxilla, which could be improved by grafts. Meanwhile, the choice of maxillary sinus augmentation approaches should be determined by the RBH and quality.
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spelling pubmed-75560612020-10-21 Biomechanical Analysis of Grafted and Nongrafted Maxillary Sinus Augmentation in the Atrophic Posterior Maxilla with Three-Dimensional Finite Element Method Wang, Xuan Zhang, Tianqi Yang, Enli Gong, Zhiyuan Shen, Hongzhou Wu, Haiwei Zhang, Dongsheng Scanning Research Article This study is aimed at determining the optimal sinus augmentation approach considering the poor bone condition in the zone of atrophic posterior maxilla. A series of simplified maxillary segment models varying in residual bone height (RBH) and bone quality were established. A 10 mm standard implant combined with two types of maxillary sinus augmentation methods was applied with the RBH, which was less than 10 mm in the maxilla. The maximal equivalent von Mises (EQV) stress in residual bone was evaluated. Bone quality had an enormous impact on the stress magnitude of supporting bone. Applying sinus augmentation combined with grafts was suitable for stress distribution, and high-stiffness graft performed better than low-stiffness one. For 7 mm and 5 mm atrophic maxilla, nongrafted maxillary sinus augmentation was feasible in D3 bone. Poor bone quality was a negative factor for the implant in the region of atrophic posterior maxilla, which could be improved by grafts. Meanwhile, the choice of maxillary sinus augmentation approaches should be determined by the RBH and quality. Hindawi 2020-10-02 /pmc/articles/PMC7556061/ /pubmed/33093935 http://dx.doi.org/10.1155/2020/8419319 Text en Copyright © 2020 Xuan Wang et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Wang, Xuan
Zhang, Tianqi
Yang, Enli
Gong, Zhiyuan
Shen, Hongzhou
Wu, Haiwei
Zhang, Dongsheng
Biomechanical Analysis of Grafted and Nongrafted Maxillary Sinus Augmentation in the Atrophic Posterior Maxilla with Three-Dimensional Finite Element Method
title Biomechanical Analysis of Grafted and Nongrafted Maxillary Sinus Augmentation in the Atrophic Posterior Maxilla with Three-Dimensional Finite Element Method
title_full Biomechanical Analysis of Grafted and Nongrafted Maxillary Sinus Augmentation in the Atrophic Posterior Maxilla with Three-Dimensional Finite Element Method
title_fullStr Biomechanical Analysis of Grafted and Nongrafted Maxillary Sinus Augmentation in the Atrophic Posterior Maxilla with Three-Dimensional Finite Element Method
title_full_unstemmed Biomechanical Analysis of Grafted and Nongrafted Maxillary Sinus Augmentation in the Atrophic Posterior Maxilla with Three-Dimensional Finite Element Method
title_short Biomechanical Analysis of Grafted and Nongrafted Maxillary Sinus Augmentation in the Atrophic Posterior Maxilla with Three-Dimensional Finite Element Method
title_sort biomechanical analysis of grafted and nongrafted maxillary sinus augmentation in the atrophic posterior maxilla with three-dimensional finite element method
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7556061/
https://www.ncbi.nlm.nih.gov/pubmed/33093935
http://dx.doi.org/10.1155/2020/8419319
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