In vitro study of effect of solvent on root canal retreatment

Brazilian Dental Journal

Kazumi Onaga Nagayama Oyama¹  Evandro Luiz Siqueira¹  Marcelo Dos Santos¹ 

[1] ,USP Faculty of Dentistry Discipline of EndodonticsSão Paulo SP ,Brazil

关键词: gutta-percha solvents;    organic solvents;    root canal retreatment;    solventes de guta percha;    solventes orgânicos;    retratamento de canal radicular;   

DOI  :  10.1590/S0103-64402002000300014

来源: SciELO

【 摘 要 】

The aim of this study was to assess the effectiveness of five different solvents: xylol, eucalyptol, halothane, chloroform and orange oil on softening gutta-percha in simulated root canals. One drop of solvent was placed into a reservoir made in a simulated canal whose channel was previously instrumented and filled with gutta-percha and N-Rickert sealer. After 5 min, softening was evaluated for each solvent by the penetration of a spreader while applying force with a 442 Instron apparatus to reach a depth of 5 mm. The results were analyzed statistically by the Kruskal-Wallis test. Xylol and orange oil were better in softening gutta-percha than the other solvents. There was no significant difference between xylol and orange oil, but these were statistically different from eucalyptol, halothane and chloroform (p<0.01).

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License