激光蚀刻在重新 Nickel-Chromium合金和牙科陶之间的切割键强度上的作用:一项实验研究

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Janardanan Sriman¹, Ahila Singaravel Chidembaranathan¹, Muthukumar Balasubramanium¹

¹Department of Prosthodontics, SRM Dental College, Bharathi Salai, Ramapuram, Chennai, India.

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概括

与酸蚀刻或空气中的颗粒磨损相比,激光蚀刻显著提高了重新 Nickel Chromium合金和牙科陶之间的剪接强度. 这种表面调节改善了牙科修复的粘合.

科学领域:

材料科学材料科学材料科学
生物材料工程生物材料工程
牙科材料牙科材料

背景情况:

牙假体经常使用 (NiCr) 合金和牙陶.
确保这些材料之间的牢固纽带对于恢复寿命至关重要.
重复造合金由于其改变的微观结构而存在独特的粘合挑战.

研究的目的:

为了评估不同表面处理对重新造的NiCr合金对牙科陶的剪接强度的影响.
为了比较激光蚀刻,空气颗粒磨损和酸蚀刻作为表面调节方法的有效性.

主要方法:

准备了40个重新造的NiCr合金样本,并分为四组:对照组,10%的盐酸 (HCl) 蚀刻,空气中的颗粒磨损和脉冲Nd:YAG激光蚀刻.
使用通用测试机器测量了剪接键强度.
解锁模式通过扫描电子显微镜 (SEM) 进行分析.
统计分析包括单向ANOVA和Tukey的HSD后期测试.

主要成果:

平均SBS值为:对照 (22.69±2.63 MPa),HCl蚀刻 (27.05±2.15 MPa),空气中的颗粒磨损 (34.46±2.46 MPa) 和激光蚀刻 (39.54±2.16 MPa).
与对照组相比,所有测试的表面处理都显著改善了SBS (P<0.001).
激光蚀刻产生了最高的平均SBS,表明了卓越的表面调节.

结论:

脉冲Nd:YAG激光表面调节显著增加了重新造的NiCr合金的表面粗度.
这种增强的粗性导致重新造的NiCr合金和牙科陶之间的剪接强度明显提高.
激光蚀刻为优化牙科修复中的粘接界面提供了一种有前途的方法.

关键词:

酸蚀刻, 牙科牙科牙科陶陶是一种陶.合金是一种合金.激光激光器激光器激光器尼克尔尼克尔是什么意思剪刀强度剪刀强度

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