在水紧固件应用后,在水泥接口上的表面粗度.
Ezgi Erden Kayalidere1, Merve Sahin1, Bora Korkut2
1Department of Restorative Dentistry, Faculty of Dentistry, Istanbul Kent University, Istanbul, Türkiye.
概括
不同的接类型和应用时间会影响水泥接口表面的粗度. 金属具比塑料具造成的损伤更多,长时间使用会增加缺陷.
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
- 保守的牙科 保守的牙科
背景情况:
- 堤隔离在修复性牙科中至关重要.
- 收缩用于固定,但它们对牙结构的影响尚未完全理解.
- 水泥结的表面完整性对于长期牙健康至关重要.
研究的目的:
- 评估不同类型的塞和应用时间对水泥结 (CEJ) 表面粗度的影响.
- 为了比较由聚合物和金属带引起的表面形态变化.
- 为了确定应用时间是否会影响表面变化的程度.
主要方法:
- 54个提取的人类牙被 subjected到三种类型的塞 (聚合物,平边金属,边金属) 应用30分钟,1小时和2小时.
- 表面粗度被测量,使用前和后的形计.
- 扫描电子显微镜 (SEM) 用于评估表面形态变化.
- 统计分析包括单向ANOVA和克鲁斯卡尔-瓦利斯试验.
主要成果:
- 在应用1个小时和2个小时后,所有类型的表面粗度都显著增加.
- 状边缘金属子显示,即使在30分钟后,粗度也显著增加.
- 随着应用时间的增加,SEM分析显示了渐进的微观结构缺陷,包括金属的裂,随着应用时间的增加.
- 与金属相比,聚合物的表面变化较小,特别是在1小时的应用后.
结论:
- 塞的应用可能会对CEJ造成损伤,损伤的程度取决于的类型.
- 与聚合物紧件相比,金属紧件,特别是带有状边缘的紧件,具有较高的表面损伤风险.
- 虽然更长的应用时间通常会导致更多的表面变化,但类型在确定损伤严重程度方面是一个更重要的因素.
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