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描述一种新的形状记忆复合材料用于正义牙对齐器 - - 一项初步研究

Kang-Jie Cheng^1,2,3, Ang Wang^1,2,3, Yu-Xuan Ma^1,2,3

¹College of Mechanical Engineering, Zhejiang University of Technology, 288 Liuhe Rd, Hangzhou, 310023, China.

Clinical oral investigations

|August 7, 2025

概括

一种新的多样乳酸和酸 (PDLLA/HA) 复合物显示出对清晰的正对齐器的承诺. 这种形状记忆材料在模拟的口腔条件下提供稳定的恢复力,支持美学正牙治疗.

科学领域:

生物材料科学生物材料科学
矯正牙科矯正牙科是一種矯正牙科.
聚合物科学聚合物科学

背景情况:

对于美学和舒适性而言,更喜欢透明的正牙仪器.
需要新的材料来提高透明对齐器的性能.

研究的目的:

为了研究一种新的形状记忆聚氨 (SMP) 复合材料,多样乳酸和酸 (PDLLA/HA),用于正牙应用.
在模拟口腔条件下评估PDLLA/HA复合物的机械性能和形状恢复力.

主要方法:

使用有限元 (FE) 分析,利用粘性弹性和相位过渡理论来建模复合物的机械行为.
实验性表征包括确定玻璃过渡温度 (Tg),拉伸性能和爬行行为.
在Abaqus中,一个定制的UMAT子程序模拟了形状记忆效应,并使用由复合材料制造的对齐器测量了正力.

主要成果:

在水中浸泡后,SMP样品的玻璃过渡温度 (Tg) 逐渐下降,在15天后达到35°C.
牙调整器产生的正牙力使牙0.1mm,0.2mm和0.3mm的面部移位,分别约为0.16,0.17和0.35N.
这些实验力与FE模拟结果一致85.3%.

结论:

在模拟的口腔条件下,PDLLA/HA复合物表现出适合和稳定的形状恢复力,用于在模拟口腔条件下进行正牙治疗.
FE分析可以预测清晰对齐器的正牙力量,有助于优化各种不良闭塞的治疗计划.

关键词:

有限元素分析的研究.ортодонтическая 强力使用牙科.这是一种PDLLA/HA复合物.热热型形状记忆聚氨聚氨粘性弹性粘性弹性

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