滑剂粘度对分离仪器检索时间和根管曲线中的牙保存的影响:一个体外研究
Pooya Saeedi1, Maryam Forghani2, Siavash Moushekhian2
1Private Practice, Mashhad, Iran.
概括
与乙烯二胺酸 (EDTA) 相比,油没有改善从曲的根通道中去除分离的仪器. 圆束计算机断层扫描 (CBCT) 在测量断裂文件长度方面比周周放射更准确.
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
- 放射学 放射学是一门学科.
背景情况:
- 根通道中的分离仪器在内牙科再处理中构成重大挑战.
- 超声波设备通常用于仪器检索,各种滑剂可能会影响效率.
- 乙烯二胺四酸 (EDTA) 是一种标准的化剂,而不同粘度的油也被作为替代品探索.
研究的目的:
- 评估不同粘度的油 (100,350,1000cSt) 与17%的EDTA在从曲线的口道中去除破碎的- (Ni-Ti) 旋转档的有效性.
- 为了比较与每个滑剂相关的牙损失和检索时间.
- 为了评估圆束计算机断层扫描 (CBCT) 与周围放射扫描在测量断裂仪器长度方面的准确性.
主要方法:
- 用破碎的Ni-Ti文件准备和模拟了48个下牙,这些牙具有曲的口腔道 (15-30度).
- 样品被分为四组,使用EDTA,100 cSt,350 cSt或1000 cSt油作为超声波激活的滑剂.
- 主要结局 (检索时间,牙损失) 和次要结局 (冠状管仪器暴露,测量准确性) 通过CBCT和周周放射测试进行了评估.
主要成果:
- 在分离仪器检索时间,牙损失或冠状仪器暴露方面,在两组之间没有发现统计学上显著的差异.
- 与周周放射相比,CBCT在测量破碎仪器的长度方面显示出明显更高的准确性 (p < 0.001).
- 在这种体外研究中,无论粘度如何,油在仪器移除效率或牙保存方面都没有比EDTA提供额外的好处.
结论:
- 与EDTA相比,油不会增强超声波去除从部牙曲线中分离的仪器.
- 由于EDTA的合性质,它仍然是临床上首选的滑剂,尽管在本研究中检索结果没有显著差异.
- CBCT是一种卓越的成像方式,用于精确测量内牙科手术中破碎的仪器长度.
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