COMPARATIVE CONE-BEAM COMPUTED TOMOGRAPHY ASSESSMENT OF ROOT CANAL PREPARATION WITH TWO NICKEL-TITANIUM ROTARY SYSTEMS IN MAXILLARY MOLARS
Abstract:
The objective of our study was to compare and assess the outcome of root canal preparation of maxillary molars with two nickel-titanium (NiTi) rotary systems using CBCT. Ten maxillary molars were selected for this study, randomly divided into 2 groups with respect to the angle of canal curvature and submitted to standardized radiographs and CBCT, before and after instrumentation with ProTaper Next (group 1) and One Shape (group 2). The canals were three-dimensionally reconstructed and evaluated for the following parameters: changes in canal volume, percentage of shaped canal walls and degree of canal transportation. Friedman One way ANOVA at 2mm, 5m and 8mm was used for the statistical analysis. There was no significant difference between the two groups before or after instrumentation. Both rotary systems were efficient and safe in shaping the root canals, without deviation of the original pathway of the canals.
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