Root Canal Area Increase Promoted by the EndoSequence and ProTaper Systems: Comparison by Computed Tomography

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Bernardes, Ricardo Affonso
Rocha, Emerson Antunes
Hungaro Duarte, Marco Antonio
Vivan, Rodrigo Ricci [UNESP]
de Moraes, Ivaldo Gomes
Bramante, Alexandre S.
de Azevedo, Jose Ribamar

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Elsevier B.V.


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. (J Endod 2010;36:1179-1182)



Cone beam CT, EndoSequence, ProTaper, rotary systems

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Journal of Endodontics. New York: Elsevier B.V., v. 36, n. 7, p. 1179-1182, 2010.