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模拟不同的填充方法中的粘合剂损伤,用于聚合缩小和遮力下的V类修复

Youxin Li^1,2, Bingmei Shao^2,3, Zhan Liu^1,2

¹Key Lab for Biomechanical Engineering of Sichuan Province, Sichuan University, Chengdu, China.

Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.]

|October 23, 2025

概括

增量填充技术可以减少聚合物收缩和闭合力造成的粘合损伤. 平行增量填充 (PI) 技术是抵御联合负载损伤的最佳方法,而斜增量牙 (OIG) 则抵御闭合力.

科学领域:

牙科材料科学牙科材料科学
生物材料工程生物材料工程
计算机牙科计算机牙科

背景情况:

在牙科修复中,粘合损伤是一个重要的临床问题.
了解填充技术对粘合剂完整性的影响,对于改善修复寿命至关重要.
有限元分析 (FEA) 为模拟复杂的生物力学现象提供了一个强大的工具.

研究的目的:

评估不同牙填充技术对粘合剂损伤的影响.
为了比较散装填充与各种增量填充策略.
使用FEA和凝聚区模型分析聚合收缩和闭塞负荷下的损伤.

主要方法:

使用凝聚区模型来模拟空洞恢复接口的粘合损伤,FEA被采用.
一个下第一个前与一个V类腔被建模.
填充技术包括散装填充 (控制),并行增量填充 (PI),斜增量切口 (OII) 和斜增量牙 (OIG).
模拟涉及聚合缩小和随后的闭合力.

主要成果:

增量填充技术减轻了聚合物缩小造成的损害扩张,但不是程度.
与散装填充相比,增量技术,特别是OIG,有效地减少了阻塞引起的损伤.
在合负载条件下 (收缩和阻塞),PI技术显示了最少的粘合损伤.

结论:

斜增量牙 (OIG) 技术显示出对因闭合力引起的粘合损伤的有效性.
建议采用平行增量填充 (PI) 技术,作为在组合加载场景下抵抗粘合剂损坏的最佳方法.

关键词:

粘合剂是一种粘合剂.这是一个V类空洞.凝聚性区域模型填充技术填充技术封闭的力量是封闭的力量.聚合物化的收缩缩减.

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