Murata H, Hamada T, Toki K, Nikawa H
Department of Prosthetic Dentistry, Hiroshima University, Faculty of Dentistry, Hiroshima, Japan.
J Oral Rehabil. 2001 Jan;28(1):48-54. doi: 10.1046/j.1365-2842.2001.00638.x.
The clinical effectiveness of tissue conditioners is influenced by their gelation characteristics and viscoelastic properties after gelation. The purpose of this study was to evaluate the effect of addition of ethyl alcohol (EtOH) on these properties, and to compare the effect of EtOH with that of the powder/liquid (P/L) ratio. Three tissue conditioners were used in this study. The gelation times were obtained with an oscillating rheometer. The viscoelastic properties after gelation were also evaluated by stress relaxation tests. Addition of greater amounts of EtOH produced the shorter gelation time and the larger flow after gelation. Conversely, although the use of a higher P/L ratio produced a shorter gelation time, this procedure leads to a smaller flow after gelation. The results suggested that the addition of EtOH to the liquids of tissue conditioners is an effective method for controlling gelation times and viscoelastic properties after gelation.
组织调理剂的临床效果受其凝胶化特性及凝胶化后的粘弹性性质影响。本研究的目的是评估添加乙醇（EtOH）对这些性质的影响，并将乙醇的效果与粉液比（P/L）的效果进行比较。本研究使用了三种组织调理剂。通过振荡流变仪获得凝胶化时间。凝胶化后的粘弹性性质也通过应力松弛试验进行评估。添加更多量的乙醇会使凝胶化时间缩短且凝胶化后流动更大。相反，尽管使用更高的P/L比会产生较短的凝胶化时间，但此方法会导致凝胶化后流动更小。结果表明，向组织调理剂的液体中添加乙醇是控制凝胶化时间及凝胶化后粘弹性性质的有效方法。
