Yancich P P, Hartwell G R, Portell F R
J Endod. 1989 Jun;15(6):257-60. doi: 10.1016/S0099-2399(89)80220-1.
Three groups of extracted teeth were obturated using gutta-percha and lateral condensation. In one group the gutta-percha was dipped in chloroform before condensation. In a second a eucalyptol dip was used. No dip was used in the third group. A dye penetration study was done to compare leakage among the three groups. The teeth were cleared for viewing and measurements of dye penetration were made using a stereomicroscope. Statistical analysis using Kruskal-Wallis one-way analysis of variance of the results showed no significant difference among test groups at the 0.05 level.
三组拔除的牙齿采用牙胶尖和侧向加压法进行根管充填。一组在加压前将牙胶尖浸入氯仿中。第二组使用桉叶油醇浸渍。第三组不使用浸渍剂。进行了染料渗透研究以比较三组之间的渗漏情况。牙齿经过清理以便观察，并使用体视显微镜对染料渗透情况进行测量。对结果进行Kruskal-Wallis单向方差分析的统计分析表明，在0.05水平下，各试验组之间无显著差异。
