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Retreatment of XP-endo Shaper and R-Endo files in curved root canals
Hayam Y Hassan1, Fahd M Hadhoud2,3, Ayman Mandorah3
1Endodontic Department, Faculty of Dentistry, Suez Canal University, Ismailia, Egypt. hayam_youssef@dent.suez.edu.eg.
Objectives:
To compare the retreatment efficiency of XP-endo Shaper and R-Endo files in curved root canals using ImageJ software.
Methods:
Forty extracted mandibular first molars with curved mesial canals (25°-35°) were chosen. Access cavities, preparation and obturation of root canals were performed. Roots were randomly distributed into two groups corresponding to the retreatment files used. Group 1 retreated with XP-endo Shaper file, and group 2 retreated with R-Endo files. Each root was sectioned and photographed. ImageJ software was used to estimate the percentage of residual filling material that existed on the three root canal segments. Mann-Whitney U and the Kruskal-Wallis tests were used to compare the percentages of residual filling material between the teeth segments (P < .05).
Results:
The R-Endo group showed a significantly higher median percentage of residual filling material than the XP-endo Shaper group. In both groups, the coronal segments had the highest median of the residual filling material, followed by the middle and apical segments.
Conclusion:
XP-endo Shaper is significantly more effective than R-Endo in removing root canal filling materials in the coronal, middle, and apical segments.
