Introduction: The purpose of this study was to compare the shaping ability of ProTaper, Mtwo, BioRaCe, and BioRaCe + S-Apex instruments in simulated canals with an S-shaped curvature. Methods: Canal transportation and aberrations were assessed by comparing the preinstrumentation and postinstrumentation images under a stereomicroscope. Analysis of variance and post hoc Student-Newman-Keuls test were used for statistical analysis. Results: ProTaper instruments caused more pronounced canal transportation in the apical curvature (P < .01) than all other instruments. The use of ProTaper, Mtwo, and BioRaCe instruments resulted in more canal aberrations compared with BioRaCe + S-Apex (P < .05). Conclusions: NiTi systems including less tapered and more flexible instruments like S-Apex seem to be favorable when preparing S-shaped canals. (J Endod 2009;35:883-886)
Shaping Ability of Four Nickel-Titanium Rotary Instruments in Simulated S-Shaped Canals / Bonaccorso, Antonio; Cantatore, Giuseppe; Condorelli, Guglielmo Guido; Schäfer, Edgar; Tripi, Teresa Roberta. - In: JOURNAL OF ENDODONTICS. - ISSN 0099-2399. - 35:6(2009), pp. 883-886. [10.1016/j.joen.2009.03.007]
Shaping Ability of Four Nickel-Titanium Rotary Instruments in Simulated S-Shaped Canals
Cantatore, Giuseppe
Secondo
Writing – Review & Editing
;
2009-01-01
Abstract
Introduction: The purpose of this study was to compare the shaping ability of ProTaper, Mtwo, BioRaCe, and BioRaCe + S-Apex instruments in simulated canals with an S-shaped curvature. Methods: Canal transportation and aberrations were assessed by comparing the preinstrumentation and postinstrumentation images under a stereomicroscope. Analysis of variance and post hoc Student-Newman-Keuls test were used for statistical analysis. Results: ProTaper instruments caused more pronounced canal transportation in the apical curvature (P < .01) than all other instruments. The use of ProTaper, Mtwo, and BioRaCe instruments resulted in more canal aberrations compared with BioRaCe + S-Apex (P < .05). Conclusions: NiTi systems including less tapered and more flexible instruments like S-Apex seem to be favorable when preparing S-shaped canals. (J Endod 2009;35:883-886)I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
