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喷砂提高了树脂和硬化牙之间的微拉伸键强度在非性宫病变中

Guilian Zhang¹, Wensheng He², Ning Ding²

¹Department of Stomatology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China.

American journal of dentistry

|June 20, 2024

概括

喷砂硬化牙显著改善树脂复合材料的结合强度和寿命. 这种微创手术提高了牙科修复的耐用性和患者的舒适性.

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
恢复性牙科恢复性牙科

背景情况:

硬化牙由于其透性降低,对树脂复合材料的粘附具有挑战.
非致病性宫病变 (NCCLs) 需要有效的恢复性治疗来确保长期的成功.
优化牙的表面处理对于提高牙粘合剂的粘合强度至关重要.

研究的目的:

为了研究喷砂对硬化牙和树脂复合材料之间的微拉伸键强度 (μTBS) 的影响.
为了评估牙表面特征的变化,包括开放的牙管道 (OT) 和表面粗度,在喷砂后.
为了确定喷砂是否改善树脂复合材料对NCCLs的粘附性.

主要方法:

有NCCL的32个前被分为对照组和喷砂组 (75 psi的110微米Al2O3颗粒).
扫描电子显微镜 (SEM) 和IPP6.0软件用于分析牙表面形态和OT的相对面积.
测量了表面粗度 (Ra),并在树脂复合材料恢复后确定了微拉伸键强度 (μTBS).

主要成果:

与对照组 (14.23 MPa) 相比,吹沙组的μTBS显著更高 (17.9 MPa).
喷砂使牙管的相对面积增加到69.74%,表面粗度增加到1.01微米.
这些发现表明,喷砂提高了硬化牙的表面准备,以改善树脂粘合.

结论:

喷砂有效地增加了硬化牙的微拉伸强度,导致NCCL中的树脂粘附寿命延长.
该程序提供了一种最少的侵入性方法,也可能减少患者在治疗期间的不适.
这种表面处理技术有望改善牙科修复的临床结果.

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