Department of Health of Baghdad Resafa, Iraqi Ministry of Health, Health Center Al-Istiklal, Baghdad, Iraq.
Department of Conservative Dentistry, Mustansiriyah University College of Dentistry, Baghdad, Iraq.
Eur Endod J. 2024 Mar 8;9(2):139 - 145. doi: 10.14744/eej.2023.58070. Epub 2024 Jan 12.
This in vitro study aimed to compare and evaluate the effectiveness of different irrigation solutions, including Triton, 0.5% Chitosan nanoparticles (CNP), and 17% ethylenediaminetetraacetic acid (EDTA), on the smear layer removal of the root canal walls.
Forty extracted sound mandibular premolars were examined; the samples were decoronated to obtain a root length of 14 mm. Each sample was instrumented using ProTaper Next rotary file X4 (40/0.06). The samples were longitudinally sectioned and examined under a scanning electron microscope at 3000x magnification in the coronal, middle, and apical thirds using a four-level scoring system.
Triton demonstrated the lowest mean smear layer removal (p>0.05) compared to the other irrigation solutions at all the levels of the root canal. No significant differences were observed (p>0.05) at the coronal and middle levels of the root canal between the CNP and EDTA groups. CNP demonstrated significantly more smear layer removal at the apical level compared to EDTA.
Smear layer removal was least effective with Triton at all the levels of the root canal compared to the other irrigation solutions tested in this study. CNP demonstrated superior smear layer removal at the apical level compared to the other irrigation solutions.
本体外研究旨在比较和评估不同冲洗液，包括 Triton、0.5%壳聚糖纳米颗粒（CNP）和 17%乙二胺四乙酸（EDTA），对根管壁玷污层去除效果的影响。
检查 40 颗完整的下颌前磨牙，将样本去冠以获得 14mm 的根长。使用 ProTaper Next 旋转锉 X4（40/0.06）对每个样本进行器械预备。使用 4 级评分系统，在根冠、根中 1/3 和根尖 1/3 三个部位，以 3000x 放大倍数对样本进行纵向切割，并在扫描电子显微镜下进行检查。
与其他冲洗液相比，Triton 在根管的所有部位的平均玷污层去除率最低（p>0.05）。在根管的根冠和根中 1/3 部位，CNP 和 EDTA 组之间无显著差异（p>0.05）。与 EDTA 相比，CNP 在根尖部位的玷污层去除效果明显更好。
与本研究中测试的其他冲洗液相比，Triton 在根管的所有部位的玷污层去除效果最差。与其他冲洗液相比，CNP 在根尖部位的玷污层去除效果更好。
