Department of Endodontics/Dental Research Center, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
J Endod. 2011 Sep;37(9):1316-9. doi: 10.1016/j.joen.2011.05.002. Epub 2011 Jun 29.
The purpose of this study was to measure the average depth of dentinal tubule sealer penetration in the middle third of teeth obturated with gutta-percha/AH Plus (Dentsply, DeTrey, Konstanz, Germany), Resilon/Epiphany (Pentron Clinical Technologies, Wallingford, CT), and Resilon/Epiphany self-etch (SE) using scanning electron microscopy (SEM).
The root canals of 36 extracted single-rooted human teeth were prepared and randomly divided into three groups. Obturations were performed with the following filling materials using the lateral compaction technique: group 1, gutta-percha/AH Plus; group 2, Resilon/Epiphany; and group 3, Resilon/Epiphany SE. The specimens were prepared for SEM examination. The average depth of sealer penetration into the dentinal tubules was measured. Data were analyzed by one-way analysis of variance and a post hoc Tukey test.
The mean (± standard deviation) values for the average depth of sealer penetration in the middle third of the roots were 22.07 ± 6.92 μm, 31.56 ± 6.80 μm, and 21.50 ± 9.25 μm for AH Plus, Epiphany, and Epiphany SE, respectively. The average penetration depth of Epiphany was significantly higher than that of Epiphany SE and AH Plus (P < .05). There was no significant difference between the penetration depth of Epiphany SE and AH Plus (P > .05).
It could be concluded that the average penetration for Epiphany into dentinal tubules within the middle third of the roots was significantly deeper than that of Epiphany SE and AH Plus.
本研究的目的是使用扫描电子显微镜(SEM)测量用牙胶/AH 加(Dentsply,DeTrey,康斯坦茨,德国)、Resilon/Epiphany(Pentron 临床技术,Wallingford,CT)和 Resilon/Epiphany 自酸蚀(SE)封闭的牙齿中段牙本质小管密封剂的平均渗透深度。
将 36 颗拔出的单根人牙的根管制备并随机分为三组。使用侧向压实技术用以下填充材料进行填充:第 1 组,牙胶/AH 加;第 2 组,Resilon/Epiphany;第 3 组,Resilon/Epiphany SE。对标本进行 SEM 检查。测量牙本质小管内密封剂渗透的平均深度。数据采用单因素方差分析和事后 Tukey 检验进行分析。
根中段牙本质小管内密封剂平均渗透深度的平均值(±标准差)分别为 22.07 ± 6.92 μm、31.56 ± 6.80 μm 和 21.50 ± 9.25 μm,用于 AH Plus、Epiphany 和 Epiphany SE。Epiphany 的平均渗透深度明显高于 Epiphany SE 和 AH Plus(P <.05)。Epiphany SE 和 AH Plus 的渗透深度无显著差异(P >.05)。
可以得出结论,Epiphany 在根中段牙本质小管内的平均渗透深度明显深于 Epiphany SE 和 AH Plus。