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Cutting Efficiency of Instruments with Different Movements: a Comparative Study J Oral Maxillofac Res 2015;6(1):e6 doi:10.5037/jomr.2015.6106 |
Cutting Efficiency of Instruments with Different Movements: a Comparative Study
1Department of Endodontics, "Sapienza" University of Rome, Italy.
2Department of Restorative Dental Science, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.
3University of Tor Vergata, Rome, Italy.
4Universidade Paranaense UNIPAR Cascavel, Brasil.
Corresponding Author:
Via San Francesco, 49-04010 Sonnino (LT)
Italy
E-mail: luigi.tocci@libero.it
ABSTRACT
Objectives: The aim of the present study was to evaluate the cutting efficiency of two new reciprocating instruments, Twisted File Adaptive and WaveOne Primary.
Material and Methods: 10 new Twisted File Adaptive (TF Adaptive) (SybronEndo, Glendora, CA, USA) and 10 new WaveOne Primary files (Dentsply Maillefer, Ballaigues, Switzerland) were activated using a torque-controlled motor, respectively TFA motor (SybronEndo, Glendora, CA, USA) and Silver motor (VDW, Munich, Germany). The device used for the cutting test consisted on a mainframe to which a mobile plastic support for the hand-piece is connected and a stainless-steel block containing a Plexiglas block 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. Mean and standard deviations of each group were calculated and data were statistically analyzed with one-way ANOVA and Bonferroni t test (P < 0.05).
Results: TF Adaptive displayed significantly greater maximum penetration depth than WaveOne Primary (P < 0.05). In fact, TF Adaptive instruments (Group 1) cut the Plexiglas block to a mean depth of 8.7 (SD 0.5) mm, while WaveOne Primary instruments cut the Plexiglas block to a mean depth of 6.4 (SD 0.3) mm.
Conclusions: Twisted File Adaptive instruments demonstrated statistically higher cutting efficiency than WaveOne instruments.
J Oral Maxillofac Res 2015;6(1):e6
doi:10.5037/jomr.2015.6106
Accepted for publication: 9 February 2015
Keywords: endodontics; instrumentation; materials testing.
To cite this article: Cutting Efficiency of Instruments with Different Movements: a Comparative Study. J Oral Maxillofac Res 2015;6(1):e6 URL: http://www.ejomr.org/JOMR/archives/2015/1/e6/v6n1e6ht.htm |
Received: 4 November 2014 | Accepted: 9 February 2015 | Published: 30 March 2015
Copyright: © The Author(s). Published by JOMR under CC BY-NC-ND 3.0 licence, 2015.