Keles Ahmet, Askerbeyli Ors Sevinc, Purali Nuhan, Kucukkaya Eren Selen
Department of Endodontics, Faculty of Dentistry, Hacettepe University, Ankara, Turkey.
Departmant of Biophysics, Faculty of Medicine, Hacettepe University, Ankara, Turkey.
Aust Endod J. 2023 Dec;49(3):470-475. doi: 10.1111/aej.12738. Epub 2023 Feb 1.
The aim of this study was to evaluate the influence of different activation techniques on dentin tubule penetration of root canal sealer. Seventy-five teeth with single canals were chemomechanically prepared. A calcium silicate-based sealer was stained with a fluorescent dye (rhodamine B), placed into the canals and activated according to the following groups: control (no activation), EDDY, EndoActivator, ultrasonic and XP-Endo Finisher. Then, the samples were obturated. The percentages of sealer penetration at various depth levels of root sections were measured with confocal laser scanning microscopy. XP-Endo Finisher presented the highest penetration at 50 μm (p < 0.05). XP-Endo Finisher showed similar penetration with EDDY at 100 and 200 μm (p > 0.05) while presented higher penetration than the other groups (p < 0.05). At 500 μm, XP-Endo Finisher presented higher penetration than EndoActivator (p < 0.05) while similar penetration with the other groups (p > 0.05). XP-Endo Finisher can be recommended for activation during sealer placement for better penetration into dentin tubules.
本研究的目的是评估不同激活技术对根管封闭剂牙本质小管渗透的影响。对75颗单根管牙齿进行化学机械预备。一种硅酸钙基封闭剂用荧光染料（罗丹明B）染色，放入根管中，并根据以下分组进行激活：对照组（未激活）、EDDY、EndoActivator、超声和XP-Endo Finisher。然后，对样本进行充填。用共聚焦激光扫描显微镜测量根管各深度水平封闭剂的渗透百分比。XP-Endo Finisher在50μm处的渗透最高（p<0.05）。XP-Endo Finisher在100和200μm处与EDDY的渗透相似（p>0.05），但比其他组的渗透更高（p<0.05）。在500μm处，XP-Endo Finisher的渗透比EndoActivator更高（p<0.05），而与其他组的渗透相似（p>0.05）。在放置封闭剂时，推荐使用XP-Endo Finisher进行激活，以便更好地渗透到牙本质小管中。
