Rohde T R, Bramwell J D, Hutter J W, Roahen J O
Naval Dental School, Bethesda, MD, USA.
J Endod. 1996 Jul;22(7):365-8. doi: 10.1016/S0099-2399(96)80220-2.
An in vitro dye leakage study was performed to compare the apical microleakage of Ketac-Endo root canal sealer with that of Roth's 801E and AH26 sealers. Sixty-four single-rooted human teeth were instrumented and randomly divided into four groups. Three groups were obturated with laterally condensed gutta-percha and either Roth's 801E, AH26, or Ketac-Endo as the sealer. A fourth group was obturated using a single master cone and the Ketac-Endo sealer. The teeth were suspended in 1% methylene blue dye for 6 days. The teeth were then longitudinally sectioned and evaluated for linear apical dye penetration. In general, Ketac-Endo root canal sealer showed greater dye penetration than Roth's 801E and AH26. There was no statistical difference in leakage between the laterally condensed Ketac-Endo group and the single-cone-obturated Ketac-Endo group.
进行了一项体外染料渗漏研究，以比较Ketac-Endo根管封闭剂与Roth's 801E和AH26封闭剂的根尖微渗漏情况。64颗单根人牙经过预备后随机分为四组。三组用侧向加压热牙胶充填，分别使用Roth's 801E、AH26或Ketac-Endo作为封闭剂。第四组用单根主尖和Ketac-Endo封闭剂充填。将牙齿悬浮于1%亚甲蓝染料中6天。然后将牙齿纵向切片，评估根尖染料线性渗透情况。总体而言，Ketac-Endo根管封闭剂的染料渗透比Roth's 801E和AH26更大。侧向加压充填的Ketac-Endo组与单根主尖充填的Ketac-Endo组之间的渗漏无统计学差异。
