Comparison of Two Types of Patient Specific Implants (PSI) and Quad Zygoma Implant (QZI) for Rehabilitation of Post-COVID Maxillary Mucormycosis Defect (PCMMD): Finite Element Analysis.

IF 0.8 Q4 DENTISTRY, ORAL SURGERY & MEDICINE

Journal of Maxillofacial & Oral Surgery Pub Date : 2023-09-01 Epub Date: 2023-06-18 DOI:10.1007/s12663-023-01950-3

Varsha Sunil Manekar, Abhay N Datarkar, Ashlesha Ghormode, Surendra Daware, Prashant Pandilwar, Pranav Sapkal

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引用次数: 0

Abstract

Introduction: The residual post-COVID maxillary mucormycosis defect (PCMMD) were extensive, due to unilateral or bilateral maxillectomies. The Goal of rehabilitation of PCMMD is to deliver a prosthetically driven reconstruction. FEA was to evaluate the biomechanical response of PSI struts (PSI 1), PSI Screw retained (PSI 2) and QZI to masticatory load on virtual simulation to improve accuracy and enhance the design.

Aim: To validate and compare the Biomechanical benefit of the PSI struts, PSI Screw retained, QZI in a case of rehabilitation of post-COVID maxillary mucormycosis defect (PCMMD) by FEA study.

Methodology: The result of stress to masticatory load on virtual simulation for (1) Maximum and minimum stress (Von Mises stress); (2) the Displacement (in three positions) and (3) the Deformation (Plastic strain) was compared on virtual simulation for PSI 1 and PSI 2 and QZI.

Conclusion: The FEA and comparative evaluation of PSI 1, PSI 2 and QZI showed a good resistance to displacement. The stress and strain values are low and acceptable. In comparison QZI shows more stress in the anterior region.

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两种类型的患者特异性种植体（PSI）和四Zygoma种植体（QZI）用于新冠肺炎后上颌毛霉菌病缺陷（PCMMD）康复的比较：有限元分析。

引言：由于单侧或双侧上颌骨切除术，新冠肺炎后残留的上颌骨毛霉菌病缺损（PCMMD）是广泛的。PCMMD的康复目标是提供假肢驱动的重建。有限元分析是在虚拟模拟上评估PSI支柱（PSI 1）、PSI螺钉固定（PSI 2）和QZI对咀嚼负荷的生物力学响应，以提高准确性并增强设计。目的：通过有限元分析研究验证和比较PSI支柱、保留PSI螺钉、QZI在新冠肺炎后上颌毛霉菌病缺损（PCMMD）康复中的生物力学益处。方法：在虚拟模拟上对（1）最大和最小应力（Von Mises应力）的咀嚼负荷的应力结果；（2）对PSI1、PSI2和QZI的位移（三个位置）和变形（塑性应变）进行了虚拟仿真比较。应力和应变值低且可接受。相比之下，QZI在前部区域显示出更多的应力。

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

Journal of Maxillofacial & Oral Surgery DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

1.90

自引率

0.00%

发文量

138

期刊介绍： This journal offers comprehensive coverage of new techniques, important developments and innovative ideas in Oral and Maxillofacial Surgery. Practice-applicable articles help develop the methods used to handle dentoalveolar surgery, facial injuries and deformities, TMJ disorders, oral cancer, jaw reconstruction, anesthesia and analgesia. The journal also includes specifics on new instruments, diagnostic equipment’s and modern therapeutic drugs and devices. Journal of Oral and Maxillofacial Surgery is recommended for first or priority subscription by the Dental Section of the Medical Library Association. Specific topics covered recently have included: ? distraction osteogenesis ? synthetic bone substitutes ? fibroblast growth factors ? fetal wound healing ? skull base surgery ? computer-assisted surgery ? vascularized bone grafts Benefits to authorsWe also provide many author benefits, such as free PDFs, a liberal copyright policy, special discounts on Elsevier publications and much more. Please click here for more information on our author services.