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Root canal area increase promoted by the EndoSequence and ProTaper systems: comparison by computed tomography
Ricardo Affonso Bernardes1, Emerson Antunes Rocha, Marco Antonio Hungaro Duarte
1CPO SL Mandic Brasiliense Dental School, Brasília, DF, Brazil. dr.ricardoaffonso@uol.com.br
Introduction:
The aim of this study was to compare the increase of the root canal area after instrumentation with EndoSequence or ProTaper rotary systems.
Methods:
Twenty-two mesial root canals from mandibular molars were instrumented. Teeth were mounted on a base, numbered, and divided into 2 groups; teeth from 1-11 (PT group) were instrumented by using the ProTaper system, and teeth from 12-22 (ES group) were instrumented by using the EndoSequence system. Cone beam computed tomography was performed on all teeth before and after instrumentation. Measurements at 3, 5, and 7 mm as well as differences in instrument performance were statistically compared by the Student t test at 5% significance level.
Results:
Both systems increased significantly the root canal area (P < .05) at all levels. Comparison between the rotary systems showed significantly greater increase (P < .05) for EndoSequence at 3 mm, with no statistically significant difference (P < .05) at the other levels.
Conclusions:
Both rotary systems increased significantly the root canal area.
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