Biomechanical Evaluation and Factorial Analysis of the 3-Dimensional Printing Self-Designed Metallic Reconstruction Plate for Mandibular Segmental Defect.

Autor:	Lin TS; Associate Professor, Department of Biomedical Engineering, I-Shou University, Kaohsiung, Taiwan. & Director, Biotechnology and Biomedical Engineering Center, I-Shou University, Kaohsiung, Taiwan., Chiu TF; Master Student, School of Dentistry, China Medical University, Taichung, Taiwan., Hsu JT; Professor, School of Dentistry, China Medical University, Taichung, Taiwan. & Joint Professor, Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan., Chen CC; Attending Physician, Department of Plastic Surgery, E-Da Hospital, Kaohsiung, Taiwan., Chang LR; Attending Physician, Department of Plastic Surgery, E-Da Hospital, Kaohsiung, Taiwan., Huang HL; Professor, School of Dentistry, China Medical University, Taichung, Taiwan. & Joint Professor, Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan. Electronic address: henleyh@gmail.com.
Jazyk:	angličtina
Zdroj:	Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons [J Oral Maxillofac Surg] 2022 Apr; Vol. 80 (4), pp. 775-783. Date of Electronic Publication: 2021 Dec 04.
DOI:	10.1016/j.joms.2021.11.022
Abstrakt:	Purpose: Reconstruction plates are frequently used to treat mandibular segmental defects. The aim of this study is to compare the biomechanical performance of a 3-dimensional-printed self-designed titanium alloy reconstruction plate with that of the traditional reconstruction plate in mandible reconstruction. The analyzed parameters of the self-designed reconstruction plate, including plate length (100 mm and 125 mm), plate thickness (2.1, 2.4, and 2.7 mm), and bone mass (100, 75, and 50%), were also evaluated. Methods: An artificial mandible with anatomical geometry was used to develop the self-designed reconstructed plate. Both in vitro experiments and finite element simulations were performed for the biomechanical comparison of the self-designed and traditional reconstruction plates. In finite element analysis, 3 major muscle forces of mandible movement were set as the loading condition, and the displacement of the condyle was fixed in all directions as the boundary condition. Results: The biomechanical performances (stresses in the plate and strains in bone) of the self-designed reconstruction plate were superior to those of the traditional plate. Factorial analysis indicated that plate length and thickness had significant effects on decreasing stresses of the plate and mandibular bone. Conclusions: The self-designed reconstruction plate might have a benefit to reduce the stresses/strains in plate itself and surrounding bone. (Copyright © 2021 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.)
Databáze:	MEDLINE
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