环氧树脂根运河密封器原型的粘合强度
Matthias J Roggendorf1, Hubert C Roggendorf2, Markus Müller-Krott3
1Clinic for Operative Dentistry, Endodontics, and Pediatric Dentistry, University Dental Medicine, Philipps University Marburg and University Hospital Giessen and Marburg, Campus Marburg, Georg-Voigt-Straße 3, 35039 Marburg, Germany.
Dentistry journal
|September 26, 2025
概括
这项研究比较了AH Plus Jet的结合强度和一个新的环氧树脂密封器原型. 对于这两种密封器来说,热阻塞的结合强度明显高于冷阻塞.
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
- 生物材料工程 生物材料工程
背景情况:
- 评估根管密封剂的结合强度对于内牙治疗成功至关重要.
- AH Plus Jet是一种广泛使用的以环氧树脂为基础的密封剂.
- 一个基于环氧树脂的新型密封器原型 (K-0189) 已开发用于评估.
研究的目的:
- 为了比较AH Plus Jet (AH) 和环氧树脂密封器原型 (K-0189) 的推出键强度 (POBS).
- 在遵守三个不同的封闭点时评估债券强度:ConformFit X5 (PTN),ProTaper Universal F5 (PTU) 和GuttaCore X5 (GC).
- 为了确定冷堵塞 (CO) 与热堵塞 (WO) 对密封体结合强度的影响.
主要方法:
- 使用ProTaper Next (PTN) X5.5文件对120颗单根牙进行了仪器仪表.
- 牙被分为两个密封组 (AH和K-0189) 和三个闭塞子组 (PTN-CO,PTU-CO,GC-WO).
- 在模拟体液 (SBF) 中储存30天后,分析了推出键强度 (POBS).
主要成果:
- 热封闭 (WO) 导致POBS显著更高 (p < 0.001) 与冷封闭 (CO) 相比,对于两种密封器.
- 两组WO之间没有发现POBS的显著差异 (p = 0.508).
- 拥有PTU积分 (G2B) 的K-0189密封器显示出明显高于其他CO组的POBS.
结论:
- 在使用热阻塞时,环氧树脂密封器原型 (K-0189) 展示了与AH Plus Jet相比的POBS.
- 热堵塞显著提高了两个测试密封器的粘合强度.
- K-0189密封器显示出有希望的结果,特别是使用热阻塞的ProTaper Universal F5点.
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