Cutting Efficiency of Reciproc and WaveOne Reciprocating Instruments

Authors: G. Plotino, A. Giansiracusa Rubini, N. M. Grande, L. Testarelli, G. Gambarini
Year: 2014
Journal:
Rubrics:
Keywords: cutting efficiency, cutting test, NiTi instruments, reciprocation

Introduction: The aim of the present study was to evaluate the cutting efficiency of 2 new reciprocating instruments, Reciproc and WaveOne.

Methods: Twenty-four new Reciproc R25 and 24 new WaveOne Primary files were activated by using a torque-controlled motor (Silver Reciproc) and divided into 4 groups (n = 12): group 1, Reciproc activated by Reciproc ALL program; group 2, Reciproc activated by  WaveOne ALL program; group 3, WaveOne activated by Reciproc ALL program; and group 4, WaveOne activated by WaveOne ALL program. The device used for the  cutting test consisted of a main frame to which a mobile plastic support for the handpiece is connected and a stainless steel block containing a Plexiglas block  (inPlexiglass, Rome, Italy) against which the cutting efficiency of the instruments was tested. The length of the block cut in 1 minute was measured in a computerized program with a precision of 0.1 mm. Means and standard deviations of each group were calculated, and data were statistically analyzed with one-way analysis of  variance and Bonferroni test (P < .05).

Results: Reciproc R25 displayed greater cutting efficiency than WaveOne Primary for both the movements used (P < .05); in particular, Reciproc instruments used with  their proper reciprocating motion presented a statistically significant higher cutting efficiency than WaveOne instruments used with their proper reciprocating motion (P  < .05). There was no statistically significant difference between the 2 movements for  both instruments (P > .05).

Conclusions: Reciproc instruments demonstrated statistically higher cutting efficiency than WaveOne instruments. (J Endod 2014;-:1–3)

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