Cobankara Funda Kont, Orucoglu Hasan, Sengun Abdülkadir, Belli Sema
Department of Endodontics, Faculty of Dentistry, Selçuk University, Campus 42075, Konya, Turkey.
J Endod. 2006 Jan;32(1):66-8. doi: 10.1016/j.joen.2005.10.019.
The aim of this in vitro study was to evaluate the apical seal obtained with four root canal sealers: Rocanal 2, Sealapex, AH Plus, and RC Sealer. Forty root canals were prepared using the step-back technique. The specimens were divided into four groups of 10 samples and obturated by laterally condensed gutta-percha with one of the tested sealers. The computerized fluid filtration method was used for evaluation of apical sealing properties. The quantitative apical leakage of each specimen was measured after 7, 14, and 21 days. Statistical analysis indicated that the apical leakage of all sealers used in this study decreased gradually from 7 days to 21 days (p < 0.05). Sealapex showed better apical sealing than the other sealers at 7, 14, and 21 days (p < 0.05). RC Sealer, AH Plus, and Rocanal 2 showed similar apical leakage values at every period (p > 0.05).
Rocanal 2、Sealapex、AH Plus和RC封闭剂的根尖封闭效果。使用逐步后退技术预备40个根管。将标本分为四组，每组10个样本，并用侧向加压牙胶尖与其中一种受试封闭剂进行根管充填。采用计算机流体过滤法评估根尖封闭性能。在7天、14天和21天后测量每个标本的定量根尖微渗漏。统计分析表明，本研究中使用的所有封闭剂的根尖微渗漏从7天到21天逐渐减少（p<0.05）。在7天、14天和21天时，Sealapex显示出比其他封闭剂更好的根尖封闭效果（p<0.05）。RC封闭剂、AH Plus和Rocanal 2在每个时间段的根尖微渗漏值相似（p>0.05）。
