Cutting Efficiency of Instruments with Different Movements: a Comparative Study

• Main Authors: Luigi Tocci (Author), Gianluca Plotino (Author), Dina Al-Sudani (Author), Alessio Giansiracusa Rubini (Author), Gianpaolo Sannino (Author), Lucila Piasecki (Author), Ermanno Putortì (Author), Luca Testarelli (Author), Gianluca Gambarini (Author)
• Format: Book
• Published: Stilus Optimus, 2015-03-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Summary

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.

Item Description

10.5037/jomr.2015.6106
2029-283X