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用于牙修复的Hydroxyapatite牙插件:压力和位移分析

Maja Lezaja Zebic¹, Aleksandar Bodic², Djordje Veljovic³

¹School of Dental Medicine, University of Belgrade, Nebojsina 35, 11000 Belgrade, Serbia.

Journal of functional biomaterials

|March 26, 2025

概括

酸 (HAP) 插件显著减少了牙移位和牙修复过程中复合材料收缩引起的压力. 这有助于保存牙结构并防止骨折,特别是在经过内牙治疗的牙中.

科学领域:

生物材料科学生物材料科学
牙科材料牙科材料
机械工程机械工程

背景情况:

复合修复在聚合过程中导致体积收缩,导致牙组织的压力和位移.
酸 (HAP) 插件用于最大限度地减少修复收缩,但它们对牙组织压力的影响尚未得到充分评估.

研究的目的:

研究HAP插件在复合物聚合和随后的闭塞负荷过程中对牙组织的应力和位移的影响.
评估HAP插件在保存准备好的牙,特别是经过内牙治疗的牙中的潜力.

主要方法:

用有限元分析 (FEA) 模拟聚合缩小 (3.7%的收缩率) 和闭塞负荷.
厚度为1.7毫米和4.7毫米的HAP插件被模拟为牙替代品.
分析了牙,牙和恢复中的压力和位移.

主要成果:

HAP插件使收缩诱导的位移减少了44.4%66.7%,最大应力减少了8.1%52%.
随着HAP插件的使用,闭口负荷显示出减少位移 (12.1%33.3%) 和质应力 (32.8%40.6%).
虽然牙应力减轻是最小的 (3%8.8%),但在腔底部的应力,特别是深腔的应力显著减少.

结论:

HAP插件有效地减少了牙修复中的压力和位移,有助于牙的保存.
在修复性牙科中,HAP插件的使用是有益的,特别是在经过内牙治疗的牙中预防垂直根骨折.

关键词:

有限元分析是有限元分析.基亚帕酸盐插入物恢复失败是因为恢复失败.恢复过程中的压力和位移.牙修复牙修复牙修复

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