Open AccessCutting Efficiency of Instruments with Different Movements: a Comparative Study
Author(s) -
Luigi Tocci,
Gianluca Plotino,
Dina Al-Sudani,
Alessio Giansiracusa Rubini,
Gianpaolo Sannino,
Lucila Piasecki,
Ermanno Putortì,
Luca Testarelli,
Gianluca Gambarini
Publication year - 2015
Publication title -
ejournal of oral and maxillofacial research
Language(s) - English
Resource type - Journals
ISSN - 2029-283X
DOI - 10.5037/jomr.2015.6106
Subject(s) - medicine , dentistry , orthodontics
Objectives: The aim of the present study was to evaluate the cutting efficiency of two new reciprocating instruments, Twisted File Adaptive and WaveOne Primary.\ud\udMaterial 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).\ud\udResults: 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.\ud\udConclusions: Twisted File Adaptive instruments demonstrated statistically higher cutting efficiency than WaveOne instruments