![]() Results: No significant difference was found between the surface changes and debris/smear layer scores based on root canal preparation technique and irrigant solution (P>0.05). All data were analyzed statistically using the Kruskal-Wallis and Mann-Whitney U tests. ![]() Surface change, the debris/smear layer remaining after instrumentation/irrigation, and the tubular penetration of root canal sealers were evaluated using SEM. The roots were randomly distributed into four groups, according to instrumentation techniques and irrigation solutions employed. ![]() Materials and Methods: The widest roots of 120 recently extracted human primary second molars were used. Objectives: To evaluate canal surface changes and the remaining debris/smear after canal preparation, and the subsequent penetration of root canal sealers into dentinal tubules in extracted primary second molars, using scanning electron microscopy (SEM). ![]()
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