3D打印钛合金下颌骨正中联合骨折接骨板的应力分布及静态力学分析

doi:10.13701/j.cnki.kqyxyj.2024.06.009

口腔医学研究 ›› 2024, Vol. 40 ›› Issue (6): 519-524.DOI: 10.13701/j.cnki.kqyxyj.2024.06.009

3D打印钛合金下颌骨正中联合骨折接骨板的应力分布及静态力学分析

王怀升¹, 刘锐¹, 宋振宇¹, 宋颐函¹, 姜婷婷¹, 韩泽奎¹, 孙国姝^2*, 王心彧^1*

1.佳木斯大学口腔医学院,黑龙江省口腔生物医学材料及临床应用重点实验室,佳木斯大学口腔医学工程实验中心,佳木斯大学附属口腔医院黑龙江佳木斯 154000;
2.佳木斯市口腔病防治院黑龙江佳木斯 154002

收稿日期:2024-01-08 出版日期:2024-06-28 发布日期:2024-06-19
通讯作者: * 孙国姝,E-mail:37251670@qq.com王心彧,E-mail:wxysgs123@226.com
作者简介:王怀升(1998~ ),男,黑龙江大兴安岭人,硕士,医师,主要从事口腔颌面外科临床与基础研究。
基金资助:
黑龙江省卫生健康委科研课题(2020-314)

Stress Distribution and Static Mechanical Analysis of 3D Printed Titanium Alloy Mandible Median Joint Fracture Plate

WANG Huaisheng¹, LIU Rui¹, SONG Zhenyu¹, SONG Yihan¹, JIANG Tingting¹, HAN Zekui¹, SUN Guoshu^2*, WANG Xinyu^1*

1. School of Stomatology, Heilongjiang Provincial Key Laboratory of Oral Biomedical Materials and Clinical Applications, Stomatology Engineering Experimental Center,Jiamusi University, Affiliated Stomatological Hospital,Jiamusi University, Jiamusi 154000, China;
2. Jiamusi Oral Disease Prevention and Control Hospital, Jiamusi 154002, China

Received:2024-01-08 Online:2024-06-28 Published:2024-06-19

摘要/Abstract

摘要： 目的:分析下颌骨正中联合骨折使用钛板固定过程中钛板的应力分布情况,再评估3D打印钛板的厚度、表面缺陷、表面粗糙度和机械性能。方法:分别数字化设计并建模,以有限元分析与静态力学分析所用钛板的外形,先模拟下颌骨正中联合骨折经钛板固定承受单侧咬合力的情况,并进行有限元分析,再对成品钛板与3D打印钛板进行厚度、粗糙度以及静态力学性能检测。结果:下颌接骨板应力集中部位主要在桥接部位;静态力学试验结果显示,3D打钛板的屈服载荷、最大载荷均显著大于成品微型和小型钛板(P<0.001);3D打印钛板经打磨抛光后厚度、粗糙度接近成品钛板。结论:3D打印钛板经打磨抛光后其厚度、精准度、粗糙度、机械性能均较佳。

关键词: 有限元, 3D打印, 三点弯曲

Abstract: Objective: To analyze the stress distribution of titanium plate during the fixation process of mandible median combined fracture, and to evaluate the thickness, surface defects, surface roughness, and mechanical properties of 3D printed titanium plate. Methods: The shape of titanium plate used for finite element analysis and static mechanical analysis was digitally designed and modeled. Firstly, the middle joint fracture of mandible was simulated and fixed with titanium plate under unilateral biting force. Then, the thickness, roughness, and static mechanical properties of finished titanium plate and 3D printed titanium plate were tested. Results: By finite element analysis, the stress concentration of mandibular bone plate was mainly in the bridge part. The yield load and maximum load of 3D titanium plate were significantly greater than that of finished micro and small titanium plate. The thickness and roughness of the 3D printed titanium plate after grinding and polishing were close to that of the finished titanium plate. Conclusion: After 3D printed titanium plate is polished, its thickness parameters are accurate, and roughness and mechanical properties are better, which can meet clinical requirements.

Key words: finite element, 3D-printed, three-point bending

王怀升, 刘锐, 宋振宇, 宋颐函, 姜婷婷, 韩泽奎, 孙国姝, 王心彧. 3D打印钛合金下颌骨正中联合骨折接骨板的应力分布及静态力学分析[J]. 口腔医学研究, 2024, 40(6): 519-524.

WANG Huaisheng, LIU Rui, SONG Zhenyu, SONG Yihan, JIANG Tingting, HAN Zekui, SUN Guoshu, WANG Xinyu. Stress Distribution and Static Mechanical Analysis of 3D Printed Titanium Alloy Mandible Median Joint Fracture Plate[J]. Journal of Oral Science Research, 2024, 40(6): 519-524.

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3D打印钛合金下颌骨正中联合骨折接骨板的应力分布及静态力学分析

Stress Distribution and Static Mechanical Analysis of 3D Printed Titanium Alloy Mandible Median Joint Fracture Plate

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