Evaluation of Stress and Fatigue on Different Implant Lengths in the Rehabilitation of Atrophic Mandibles with Full-Arch Fixed Prosthesis Using Finite Element Method.

IF 1.7 4区医学 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

International Journal of Oral & Maxillofacial Implants Pub Date : 2022-09-01 DOI:10.11607/jomi.9514

Jéssyca Maria França de Oliveira Melo, Ramiro Brito Willmersdorf, Athos de Siqueira Lages, Andre Vajgel Fernandes, Fernanda Benevides Viana de Amorim, Bruna de Carvalho Farias Vajgel

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引用次数: 5

Abstract

Purpose: This research aimed to evaluate the stress and fatigue generated in short implants compared to regular implants in rehabilitation with fixed full-arch implant-supported prostheses in atrophic mandibles using the finite element method (FEM).

Materials and methods: Four models were constructed with different implants lengths: 4, 6, 8, and 10 mm. A 100-N oblique load was applied to evaluate the stress on the bone, implant, and prosthetic components.

Results: Similar behavior was observed for all groups, except for 4 mm, which showed more discrepant values. During the fatigue test, all the groups exhibited infinite lives except G4.

Conclusion: Based on the similarity of all the models, it is suggested that all short implants investigated are seemingly viable alternatives for the rehabilitation of atrophic mandibles. However, the 6-mm-long and 8-mm-long implants evinced more favorable mechanical behavior than the 4-mm-long type.

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应用有限元法评价不同种植体长度对萎缩下颌骨全弓固定修复的应力和疲劳影响。

目的:采用有限元法评价短种植体与常规种植体在萎缩性下颌骨全弓固定种植体康复中产生的应力和疲劳。材料与方法:种植体长度分别为4、6、8、10 mm，构建4个模型。施加100-N的斜载荷来评估骨、种植体和假体部件的应力。结果:除4 mm外，各组行为相似，差异值较大。在疲劳试验中，除G4组外，其余各组均表现出无限寿命。结论:基于所有模型的相似性，提示所研究的所有短种植体似乎都是萎缩下颌骨康复的可行选择。然而，6mm和8mm的植入物比4mm的植入物表现出更有利的力学行为。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Oral & Maxillofacial Implants 医学-牙科与口腔外科

CiteScore

3.30

自引率

5.00%

发文量

115

审稿时长

6 months

期刊介绍： Edited by Steven E. Eckert, DDS, MS ISSN (Print): 0882-2786 ISSN (Online): 1942-4434 This highly regarded, often-cited journal integrates clinical and scientific data to improve methods and results of oral and maxillofacial implant therapy. It presents pioneering research, technology, clinical applications, reviews of the literature, seminal studies, emerging technology, position papers, and consensus studies, as well as the many clinical and therapeutic innovations that ensue as a result of these efforts. The editorial board is composed of recognized opinion leaders in their respective areas of expertise and reflects the international reach of the journal. Under their leadership, JOMI maintains its strong scientific integrity while expanding its influence within the field of implant dentistry. JOMI’s popular regular feature "Thematic Abstract Review" presents a review of abstracts of recently published articles on a specific topical area of interest each issue.