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氧化锆基台原厂和售后市场基台螺丝对牙种植体装配的生物力学影响。

Biomechanical effects of original equipment manufacturer and aftermarket abutment screws in zirconia abutment on dental implant assembly.

机构信息

Department of Dentistry, Chang Gung Memorial Hospital and College of Medicine, Chang Gung University, Kaohsiung, 833, Taiwan.

Mechanical Engineering, Cheng Shiu University, Kaohsiung, 833, Taiwan.

出版信息

Sci Rep. 2020 Oct 27;10(1):18406. doi: 10.1038/s41598-020-75469-9.

DOI:10.1038/s41598-020-75469-9
PMID:33110137
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7591477/
Abstract

The use of aftermarket computer-aided design/computer-assisted manufacturing (CAD/CAM) prosthesis components in dental implants has become popular. This study aimed to (1) compare the accuracy of aftermarket CAD/CAM screws with that of original equipment manufacturer (OEM) abutment screws and (2) examine the biomechanical effects of different abutment screws used with zirconia abutment in an implant fixture by using three-dimensional finite element analysis (FEA). Significantly different measurements were obtained for the aftermarket CAD/CAM and OEM screws. The FEA results indicated that under the same loading condition, the maximum stress of the aftermarket CAD/CAM screws was 15.9% higher than that of the OEM screws. Moreover, the maximum stress position occurred in a wide section of the OEM screws but in the narrowest section of the aftermarket screws. The stress of the OEM zirconia abutment was 14.9% higher when using the aftermarket screws than when using the OEM screws. The effect of the manufacturing differences between aftermarket and OEM screws on the clinical effect of aftermarket screws is unpredictable. Therefore, aftermarket screws should be cautiously used clinically.

摘要

使用售后市场计算机辅助设计/计算机辅助制造 (CAD/CAM) 义齿修复体组件在牙科植入物中变得越来越流行。本研究旨在：(1) 比较售后市场 CAD/CAM 螺钉与原始设备制造商 (OEM) 基台螺钉的准确性，(2) 通过三维有限元分析 (FEA) 检查不同基台螺钉与氧化锆基台一起在种植体修复体中的生物力学效应。售后市场 CAD/CAM 和 OEM 螺钉的测量值存在显著差异。FEA 结果表明，在相同的加载条件下，售后市场 CAD/CAM 螺钉的最大应力比 OEM 螺钉高 15.9%。此外，OEM 螺钉的最大应力位置出现在较宽的部分，而售后市场螺钉的最大应力位置出现在最窄的部分。使用售后市场螺钉时，OEM 氧化锆基台的应力比使用 OEM 螺钉时高 14.9%。售后市场和 OEM 螺钉制造差异对售后市场螺钉临床效果的影响是不可预测的。因此，应谨慎在临床上使用售后市场螺钉。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9c68/7591477/ba6c503951d6/41598_2020_75469_Fig10_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9c68/7591477/de0cb7ad67a1/41598_2020_75469_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9c68/7591477/385c010792fb/41598_2020_75469_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9c68/7591477/ba6c503951d6/41598_2020_75469_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9c68/7591477/58e3ecfe13da/41598_2020_75469_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9c68/7591477/a64a32b07d5a/41598_2020_75469_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9c68/7591477/5df8227464c5/41598_2020_75469_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9c68/7591477/41c94a009df5/41598_2020_75469_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9c68/7591477/b206bcc43443/41598_2020_75469_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9c68/7591477/74f23d1e91d9/41598_2020_75469_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9c68/7591477/641e45d77a27/41598_2020_75469_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9c68/7591477/de0cb7ad67a1/41598_2020_75469_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9c68/7591477/385c010792fb/41598_2020_75469_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9c68/7591477/ba6c503951d6/41598_2020_75469_Fig10_HTML.jpg

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