基于树脂的密封剂的增强粘合强度和粘合界面与根牙,使用一种新型单一多功能内牙灌液解决方案
Paulo Oliveira Silva1, Julia Godoi Lopes1, Iago Ramirez1
1Department of Restorative Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.
概括
标准灌方案 (低酸,EDTA,盐水) 与新灌溶液相比,显著提高了推出键强度和肠粘度. 这些发现强调了已建立的内牙灌方法对于有效的根管密封的重要性.
科学领域:
- 牙周内科医院 牙周内科医院 牙周内科医院
- 牙科材料科学 牙科材料科学
- 生物材料是一种生物材料.
背景情况:
- 有效的根管堵塞依赖于最佳的粘合强度和适应良好的粘合界面.
- 传统的灌方案涉及多种溶液,如二酸盐 (NaOCl) 和EDTA.
- 新型单一内牙灌剂正在开发中,以简化程序,但它们的有效性需要彻底评估.
研究的目的:
- 用一种新的多功能灌剂与传统灌协议相比,将gutta-percha与根牙的推出键强度和粘合界面质量进行比较.
- 评估不同灌溶液对以环氧树脂为基础的密封剂的结合强度和适应性的影响.
主要方法:
- 48只人类大犬通过使用WaveOne Gold Large系统进行了根管制备.
- 牙用四种不同的协议进行灌:SHE (NaOCl + EDTA + 盐水),T (Triton + 盐水),TE (Triton + EDTA + 盐水) 和SHT (NaOCl + Triton + 盐水).
- 用单个WaveOne大圆和AH Plus密封器堵塞根通道,然后进行推出键强度测试和扫描电子显微镜 (SEM) 分析.
主要成果:
- 与所有其他组相比,SHE组表现出明显更高的推出键强度 (4.87 ± 0.84 MPa) (p < 0.001).
- 在SHE组中,SEM分析显示了优异的适应性和粘合剂接口中的差距较少.
- 新的灌剂配方 (T,TE,SHT) 导致结合强度降低,肠/密封器接口的适应性较差.
结论:
- 传统的灌协议 (SHE) 在粘合强度和粘合界面质量方面表现出卓越的性能.
- 与标准协议相比,测试的新型灌剂没有增强,在某些情况下降低了结合强度和适应性.
- 需要进一步的研究来优化单个内牙灌剂配方的临床有效性.
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