喷砂不同工作环境对树脂复合材料修复键强度的影响
Clemens Lechte1, Erik Hohmann1, Annette Wiegand1
1Department of Preventive Dentistry, Periodontology and Cariology, University Medical Center Göttingen, 37075 Göttingen, Germany.
Materials (Basel, Switzerland)
|January 25, 2025
概括
喷砂设置显著提高了树脂复合材料的修复键强度,空气压力和距离是关键因素. 然而,喷砂并没有影响质结合强度,而是减少了牙结合强度.
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:
- 树脂复合材料修复容易磨损和断裂,需要修复.
- 有效的修复需要旧和新复合材料之间的最佳剪接强度 (SBS).
- 喷砂是一种潜在的表面处理方法,可以提高粘合强度.
研究的目的:
- 为了评估各种喷砂参数对修复的树脂复合材料的剪接强度 (SBS) 的影响.
- 为了确定喷砂对质和牙基板的粘合强度的影响.
- 为了确定树脂复合材料修复的最佳喷砂设置.
主要方法:
- 准备了树脂复合物,乳液和牙的样本 (每组n=16个).
- 喷砂参数 (气压,角度,颗粒大小,尖端大小,距离) 是不同的.
- 应用了通用粘合剂和树脂复合材料,随后进行了人工老化.
- 使用ANOVA和后期测试测量和统计分析了切割键强度.
主要成果:
- 空气压力和距离是影响SBS的唯一重要因素 (p ≤0.049).
- 在大多数情况下,喷砂并没有改变质的结合强度 (p ≥ 0.999),但在牙上降低了结合强度 (p ≤ 0.027).
- 在修复后,树脂复合物SBS在所有设置中匹配了增量键强度 (p ≥0.566).
结论:
- 喷砂有效地提高了树脂复合材料的修复键强度.
- 特定的应用参数,如空气压力和距离,不像一般使用喷砂技术那么关键.
- 虽然对复合材料与复合材料的键有好处,但喷砂可能会对牙键强度产生负面影响.
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