An In-vitro Comparative Study Of The Efficacy Of Two Preparation Techniques For Doing Nonsurgical Root Canal Retreatment
Keywords:
non-surgical retreatmentnttt, HyFlex Remover, RECIPROCAbstract
Aim:To compare the percentage of space occupied by residual root canal flling material after using HyFlexTMRemover preparation system and RECIPROC® system for non-surgical root canal retreatment.
Materials and methods: 30 mandibular premolars underwent initial root canal treatment and filled using the hydraulic condensation technique then stored in an incubator with 100% humidity and a temperature of 370 for 30 days. The specimen were then removed from the incubator and randomly divided into two groups (N=15), then non-surgical retreatment was performed. Each specimen were cleaved into two longitudinal sections and photographed using a light microscope connected to a digital camera and then analyzed by the computer.
Results:Significant differences (p-value >0.05) were found between the two groups. The mean percentage of the area occupied by remaining filling material was (7%) in the HyFlexTMRemover group which was 32.70% lower than RECIPROC® group which scored (11%).
Conclusion:Within the limitations of this study, it can be concluded that using HyFlexTMRemover for non-surgical retreatment resulted in a more clean root canals regarding the amount of residual flling material compared to RECIPROC®.
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