大量填充复合材料和通用粘合剂在具有高C因子的I类空洞中的粘性
Erik Eichler1, Kirstin Vach1, Nadine Schlueter1
1Hannover Medical School, Department of Conservative Dentistry, Periodontology and Preventive Dentistry, OE 7740, Carl-Neuberg-Straße 1, Hannover 30625, Germany.
Journal of dentistry
|January 20, 2024
概括
在高C因子腔的散装复合材料中,表现出较低的牙粘附度与自我蚀刻应用和缩短的聚合. 通过蚀刻和冲洗的既定分层技术提供了优越的粘合强度,即使在老化后.
科学领域:
- 牙科材料科学 牙科材料科学
- 粘合式牙科 粘合式牙科
- 恢复性牙科 恢复性牙科
背景情况:
- 在高C因子腔中,粘合剂修复是一个重大挑战.
- 有各种各样的散装复合材料和应用技术可用,需要对其临床疗效进行评估.
- 牙粘附性对于修复的长寿至关重要,尤其是在具有挑战性的条件下.
研究的目的:
- 为了比较大量填充复合材料在高C因子I类腔中的牙粘附.
- 为了评估热循环之前和之后的粘附性.
- 将批量填充技术与传统的增量分层技术进行比较.
主要方法:
- 人类牙经历了标准化的I类腔室准备.
- 使用自蚀刻或蚀刻和冲洗模式应用了通用粘合剂.
- 用各种散装复合材料或控制增量分层复合材料填充腔;在初始和热循环后测试微拉伸键强度.
主要成果:
- 蚀刻和冲洗对照组在老化前后表现出最高的平均结合强度.
- 使用蚀刻和冲洗的批量填充组通常显示较高的结合强度与自我蚀刻相比.
- 缩短的聚合时间和自我粘合的修复材料导致键强度显著降低,以及大量的预测失败.
结论:
- 大量填充复合材料在使用自蚀刻应用时,在高C因子腔中显示牙粘附性降低.
- 不建议在高C因子腔内缩短聚合方案,因为结合强度受到损害.
- 在考虑新的散装填充技术时,需要进行批判性评估,而不是在苛刻的腔室准备中建立了增量分层.
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