Koskinen K P, Meurman J H, Stenvall H
Scand J Dent Res. 1980 Dec;88(6):505-12. doi: 10.1111/j.1600-0722.1980.tb01260.x.
The dissolving effects of seven endodontic solutions on unprepared root canal walls of young intact human premolars were evaluated with the scanning electron microscopy. After incubation at 37 degrees C in distilled water or isotonic saline for 10 min the predentinal surfaces showed no changes as compared with untreated controls. The demineralizers Decal and Largal Ultra had little effect on the organic tissues but caused some decalification where mineralized dentin was exposed. Nelex caused concentration-dependent coagulation of the residual pulp tissue, making typical ring structures on the surfaces. Sodium hypochlorite at 2.5% and 5.0% dissolved most of the predentin, exposing the globular appearance of the mineralizing front. Salvizol produced small globules on otherwise intact surfaces. Dissolution of both the organic and inorganic tissue of the root canal wall would require the combined use of two of the solutions studied.
采用扫描电子显微镜评估了七种根管治疗溶液对未预备的年轻完整人类前磨牙根管壁的溶解作用。在37℃下于蒸馏水或等渗盐水中孵育10分钟后，与未处理的对照相比，前期牙本质表面未显示出变化。脱矿剂Decal和Largal Ultra对有机组织影响较小，但在矿化牙本质暴露处引起了一些脱钙。Nelex导致残留牙髓组织发生浓度依赖性凝固，在表面形成典型的环状结构。2.5%和5.0%的次氯酸钠溶解了大部分前期牙本质，使矿化前沿呈现出球状外观。Salvizol在原本完整的表面产生了小球体。根管壁有机和无机组织的溶解需要联合使用所研究的两种溶液。
