HyFlex CM : Tip Evaluation (1st 3mm)

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DETAILS:

FILE NAME: HyFlex CM
COMPANY: Coltene
MANUFACTURER: D&S Dental
MADE IN: USA
WEBSITE: HyFlexCM.com

 

CHARACTERISTICS:

SIZE: 25/04
FLUTES: 3
SPIRALS PER 16MM: 2.4
HELIX ANGLE: 8.3º (at apical 1/3) [fig. 2]
CUTTING ANGLE: (-)35º [fig. 1]
DEBRIS REMOVING AREA: 52% [fig. 1]
ROTATION TO FAILURE: 860º
PEAK TORQUE AT FAILURE: 1.93 gf/cm
60 ̊ DEFLECTION: 3.97 g
PLASTIC DEFORMATION: 0º
FILE CORE AREA RELATIVE TO CIRCUMFERENCE AREA: 32%
FILE CORE AREA RELATIVE TO FILE X-SECTION AREA: 67%

 

DISCUSSION:

  • The Hyflex is heat-treated. The result is a very flexible file with little memory. However the rotation to failure and the peak torque at failure is low when compared to most files.

    Tip SEM

    Tip SEM

    Fig. 1

    Fig. 1

    Fig. 2

    Fig. 2

     

     

     

     

     

     

     

    SEMs are provided by Dr. Franklin Garcia-Godoy, Professor and Senior Executive Associate Dean for Research Director, Bioscience Research Center University of Tennessee Health Science Center