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A comparative evaluation of root canal area increase using three different nickel-titanium rotary systems: An ex vivo
Adrija Deka1, A C Bhuyan1, Darpana Bhuyan1
1Department of Conservative Dentistry and Endodontics, Regional Dental College and Hospital, Guwahati, Assam, India.
Background And Objectives:
The present study was undertaken to compare and evaluate the area increase of root canals with ProTaper, iRaCe and Revo-S systems using cone beam computed tomography for analysis.
Materials And Methodology:
Forty five extracted human mandibular premolars having single canal and straight root were collected. Teeth were randomly assigned to three groups (n=15). Samples were decoronized by maintaining root length at 14 mm. Pre-instrumentation cone beam computed tomography scan was done after stabilizing the samples on wax blocks. The working length was determined at 1 mm short from the apical foramen by using a ISO 15 K-file tip protruding at apical foramen. Preparation was carried out according to the manufacturer's instructions. Finally, canals were instrumented upto 30/.06 apically for each group. After each instrumentation, root canals were irrigated with 2ml of 3% sodium hypochlorite solution followed by 2 ml of 17% EDTA solution. Final irrigation was done with 5ml of saline. Post instrumentation cone beam computed tomography scans of all samples in the 3 groups were acquired.
Results:
Mean percentage of area increase in different thirds of the canal was highest for ProTaper followed by i-RaCe and Revo-s system which was statistically significant.
Interpretation And Conclusion:
Root canal area increase was highest for ProTaper followed by i-Race and Revo-S systems.
