微切割复合树脂对矿物三氧化物聚合物和酸改性聚碳酸盐水泥的微切割结合强度在两个时间点使用不同的粘合方法:一种体外研究
Alireza Adl1, Zahra Jowkar2, Mahdi Zerafat3
1Biomaterials Research Center, Department of Endodontics, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.
Clinical and experimental dental research
|January 9, 2026
概括
用酸 (PCC/KNO3) 修改的聚碳酸盐水泥与矿物三氧化物聚合物 (MTA) 相比,显示出优越的早期结合强度. 这使得PCC/KNO3成为重要的脉疗法恢复的有希望的替代方案.
科学领域:
- 牙科材料科学 牙科材料科学
- 恢复性牙科 恢复性牙科
- 生物材料是一种生物材料.
背景情况:
- 矿物三氧化物聚合物 (MTA) 是一种常见的材料,用于生命脉治疗.
- 评估MTA的替代品对于改善临床结果至关重要.
- 含有酸 (PCC/KNO3) 的改性聚碳酸盐水泥是一种潜在的替代性脉冲切除材料.
研究的目的:
- 为了比较复合树脂的微切割键强度 (μSBS) 与MTA和PCC/KNO3.
- 评估通过自蚀刻 (SE) 和蚀刻和冲洗 (E&R) 策略应用的通用粘合剂对债券强度的影响.
- 为了评估应用后24小时和7天的结合强度.
主要方法:
- 192个烯酸标本填充了MTA或PCC/KNO.
- 标本根据粘合剂类型,应用方法 (SE与E&R) 和储存时间分为8个子组.
- 微切割键强度 (μSBS) 在100%湿度下在37°C下保存24小时后进行了测试.
主要成果:
- 在24小时和7天的时间里,PCC/KNO3的结合强度明显高于MTA.
- 粘合剂的类型和应用方法并没有显著影响粘合强度.
- 在一些组中,MTA债券的强度随着时间的推移而增加,而在大多数子组中,PCC/KNO3显示下降.
结论:
- 与MTA相比,PCC/KNO3表现出优越的早期债券强度.
- PCC/KNO3与立即恢复兼容,这表明其可用于生命脉治疗的可行性.
- 选择粘合剂策略 (SE或E&R) 没有影响任何材料的粘合强度.
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