Assessment of Stress Distribution Around Traditional and Sleeve Fixed Partial Denture Designs: Finite Element Analysis.

Q1 Dentistry
Mohiddin R Dimashkieh, Salah A Yousief, Amir M Demachkia, Mohammad Zakaria Nassani, Abdulaziz Samran, Ali Barakat, Yash Pal Singh, Reda M Dimashkieh, Hend Mohamed El Sayed, Rami M Galal, Mohammed Noushad, Monika Saini
{"title":"Assessment of Stress Distribution Around Traditional and Sleeve Fixed Partial Denture Designs: Finite Element Analysis.","authors":"Mohiddin R Dimashkieh, Salah A Yousief, Amir M Demachkia, Mohammad Zakaria Nassani, Abdulaziz Samran, Ali Barakat, Yash Pal Singh, Reda M Dimashkieh, Hend Mohamed El Sayed, Rami M Galal, Mohammed Noushad, Monika Saini","doi":"10.1055/s-0044-1791761","DOIUrl":null,"url":null,"abstract":"<p><strong>Objectives: </strong> The aim of this research is to evaluate/compare the use of traditional versus sleeve fixed partial denture (PD) designs made from different materials on supporting structures. The comparison included three- and four-unit PD cases.</p><p><strong>Materials and methods: </strong> Four finite element models are used in the research. The three-unit PD consists of the mandibular second premolar, first molar (as a pontic), and second molar. The four-unit PD includes the first premolar. The PD materials assessed were zirconia, E-max, and Celtra Duo. Bone has been simplified representing it as two cuboids. Each PD has been loaded to two cases over the pontic's central fossa: 300 N compressive, 150 N obliquely applied with 45 degrees forming 24 cases.</p><p><strong>Results: </strong> The three-unit traditional and sleeve PDs material change showed a slight change in cortical bone stress under vertical loading. Under oblique loading, cortical bone Von Mises stresses were higher by about 12 to 15% more than vertical loading. On the other hand, the four-unit PDs showed minor effect by changing PD material, while using sleeve design PD can reduce the cortical bone stresses up to 20% in comparison to traditional PD design. The mucosa and spongy bone were negligibly affected by changing PD material, and the traditional and sleeve designs showed close values to each other. Superiority of sleeve design appeared by reducing cement layer stresses dramatically, while PD body material rigidity affects its response.</p><p><strong>Conclusion: </strong> Within the limitations of this study, the higher rigid PD material can dissipate loadings over it more preferably regarding its effect on the underlying structures. Sleeve PD design is equivalent to the traditional one for three-unit PDs, while it showed better performance with four-unit PDs. Zirconia three-unit PDs' bodies received the lowest stresses and redistributed and transferred the applied load to the underneath structures better than the other two tested materials. This finding was reversed with four-unit PDs.</p>","PeriodicalId":12028,"journal":{"name":"European Journal of Dentistry","volume":" ","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"European Journal of Dentistry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1055/s-0044-1791761","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Dentistry","Score":null,"Total":0}
引用次数: 0

Abstract

Objectives:  The aim of this research is to evaluate/compare the use of traditional versus sleeve fixed partial denture (PD) designs made from different materials on supporting structures. The comparison included three- and four-unit PD cases.

Materials and methods:  Four finite element models are used in the research. The three-unit PD consists of the mandibular second premolar, first molar (as a pontic), and second molar. The four-unit PD includes the first premolar. The PD materials assessed were zirconia, E-max, and Celtra Duo. Bone has been simplified representing it as two cuboids. Each PD has been loaded to two cases over the pontic's central fossa: 300 N compressive, 150 N obliquely applied with 45 degrees forming 24 cases.

Results:  The three-unit traditional and sleeve PDs material change showed a slight change in cortical bone stress under vertical loading. Under oblique loading, cortical bone Von Mises stresses were higher by about 12 to 15% more than vertical loading. On the other hand, the four-unit PDs showed minor effect by changing PD material, while using sleeve design PD can reduce the cortical bone stresses up to 20% in comparison to traditional PD design. The mucosa and spongy bone were negligibly affected by changing PD material, and the traditional and sleeve designs showed close values to each other. Superiority of sleeve design appeared by reducing cement layer stresses dramatically, while PD body material rigidity affects its response.

Conclusion:  Within the limitations of this study, the higher rigid PD material can dissipate loadings over it more preferably regarding its effect on the underlying structures. Sleeve PD design is equivalent to the traditional one for three-unit PDs, while it showed better performance with four-unit PDs. Zirconia three-unit PDs' bodies received the lowest stresses and redistributed and transferred the applied load to the underneath structures better than the other two tested materials. This finding was reversed with four-unit PDs.

传统和套筒固定局部义齿设计的应力分布评估:有限元分析。
目的:本研究的目的是评估/比较由不同材料制成的传统和套筒固定局部义齿(PD)在支持结构上的使用。比较包括三个和四个单位的PD病例。材料和方法:研究中使用了四种有限元模型。三单元PD由下颌第二前磨牙,第一磨牙(作为桥状)和第二磨牙组成。四单元PD包括第一前臼齿。评估的PD材料为氧化锆、E-max和Celtra Duo。骨被简化为两个长方体。每个PD已加载到两个病例在桥的中央窝:300牛的压缩,150牛斜应用45度形成24例。结果:三单元传统和套筒pd材料改变在垂直载荷下皮质骨应力变化不大。斜向加载下,骨皮质Von Mises应力比垂直加载高约12 ~ 15%。另一方面,改变PD材料对四单元PD的影响较小,而套筒设计PD与传统PD设计相比,可减少高达20%的皮质骨应力。改变PD材料对粘膜和海绵状骨的影响可以忽略不计,传统设计与套筒设计值相近。套管设计的优越性在于显著降低水泥层应力,而PD体材料刚度影响其响应。结论:在本研究的限制范围内,考虑到其对底层结构的影响,高刚性PD材料可以更好地消散载荷。套筒式PD设计相当于传统的三单元PD设计,而四单元PD设计则表现出更好的性能。与其他两种测试材料相比,氧化锆三单元pd体承受的应力最低,并能更好地将施加的载荷重新分配和转移到下部结构。这一发现与四单位pd相反。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
European Journal of Dentistry
European Journal of Dentistry Dentistry-Dentistry (all)
CiteScore
5.10
自引率
0.00%
发文量
161
期刊介绍: The European Journal of Dentistry is the official journal of the Dental Investigations Society, based in Turkey. It is a double-blinded peer-reviewed, Open Access, multi-disciplinary international journal addressing various aspects of dentistry. The journal''s board consists of eminent investigators in dentistry from across the globe and presents an ideal international composition. The journal encourages its authors to submit original investigations, reviews, and reports addressing various divisions of dentistry including oral pathology, prosthodontics, endodontics, orthodontics etc. It is available both online and in print.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信