TF™ Twisted Files

Shape

NiTi Endo Files

QUANTUM LEAP IN FILE DESIGN AND MANUFACTURING

The Twisted File is the first and only file to combine three unique and proprietary processes to deliver optimal strength and flexibility:

R-PHASE™ HEAT TREATMENT TECHNOLOGY

TF is produced with Kerr Endodontics proprietary R-Phase Technology. This patented technology is used to optimize the molecular phase and properties of nickel titanium (NiTi). R-Phase increases file flexibility and resistance to cyclic fatigue.

TWISTED DESIGN, NOT GROUND

Twisting helps preserve grain structure and reduces formation of microfractures, making the file even more durable. Other endodontic files are made by grinding flutes into the file. Grinding weakens the metal’s structure at the molecular level and creates microfractures on the metal’s surface – both of which can lead to file separation.

TF-Thumbnail-R-Phase

STRENGTH AND FLEXIBILITY THAT CAN BE MEASURED

In a torsional stress comparison, Twisted Files absorbed more energy before fracture than ground blanks1. Twisted files can withstand approximately 60% more torque than files made using a traditional manufacturing process. A recent study showed that Twisted File is up to 70% more flexible than the other NiTi files tested2.

1 Nicoll T, Oestreich L, Tang C, Ravi VA. Evaluation of product properties resulting from a new NiTi endodontic file manufacturing process. Chemical and Materials Engineering
Department, California State Polytechnic University, 2006
2 JOE — Volume 40, Number 11, November 2014 - Assessment of the Mechanical Properties of ProTaper Next Nickel-Titanium Rotary Files

TF

TF  .25/.10 23mm
822-0253TF .25/.10 23mm
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TF  .25/.10 27mm
822-0257TF .25/.10 27mm
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TF  .25/.12 23mm
822-2253TF .25/.12 23mm
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TF  .25/.04 23mm
822-4253TF .25/.04 23mm
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TF  .25/.04 27mm
822-4257TF .25/.04 27mm
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TF  .40/.04 23mm
822-4403TF .40/.04 23mm
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TF  .40/.04 27mm
822-4407TF .40/.04 27mm
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TF  .50/.04 23mm
822-4503TF .50/.04 23mm
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TF  .50/.04 27mm
822-4507TF .50/.04 27mm
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TF  .25/.06 23mm
822-6253TF .25/.06 23mm
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TF  .25/.06 27mm
822-6257TF .25/.06 27mm
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TF  .30/.06 23mm
822-6303TF .30/.06 23mm
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TF  .30/.06 27mm
822-6307TF .30/.06 27mm
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TF  .35/.06 23mm
822-6353TF .35/.06 23mm
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TF  .35/.06 27mm
822-6357TF .35/.06 27mm
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TF  .25/.08 23mm
822-8253TF .25/.08 23mm
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TF  .25/.08 27mm
822-8257TF .25/.08 27mm
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TF Obturators

822-3025TF Obturator Size #25 - 6 PC
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822-3030TF Obturator Size #30 - 6 PC
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822-3035TF Obturator Size #35 - 6 PC
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822-3040TF Obturator Size #40 - 6 PC
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822-3045TF Obturator Size #45 - 6 PC
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822-3050TF Obturator Size #50 - 6 PC
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TF Verifiers

822-3125TF Verifier Size #25 - 6 PCS
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822-3130TF Verifier Size #30 - 6 PCS
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822-3135TF Verifier Size #35 - 6 PCS
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822-3140TF Verifier Size #40 - 6 PCS
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822-3145TF Verifier Size #45 - 6 PCS
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822-3150TF Verifier Size #50 - 6 PCS
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TF Obturators Economy Pack

822-3625TF Obturator Economy Pack Size
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822-3630TF Obturator Economy Pack Size
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822-3635TF Obturator Economy Pack Size
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822-3640TF Obturator Economy Pack Size
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822-3645TF Obturator Economy Pack Size
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822-3650TF Obturator Economy Pack Size
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TF Procedure Packs

TF Anterior Asst Pack 23mm
822-3864TF Anterior Asst Pack 23mm
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TF Posterior Asst Pack 23mm
822-3866TF Posterior Asst Pack 23mm
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TF Anterior Asst Pack 27mm
822-7864TF Anterior Asst Pack 27mm
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TF Posterior Asst Pack 27mm
822-7866TF Posterior Asst Pack 27mm
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TF Assortments

TF Small Asst  .25  23mm
822-4683TF Small Asst .25 23mm
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TF Small Asst  .25 27mm
822-4687TF Small Asst .25 27mm
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TF Apical  Large Asst  (.30/.0
822-6643TF Apical Large Asst (.30/.0
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TF Large Asst  .25 23mm
822-6803TF Large Asst .25 23mm
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TF Large Asst  .25 27mm
822-6807TF Large Asst .25 27mm
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TF Apical  Small Asst  (.25/.0
822-8663TF Apical Small Asst (.25/.0
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*During the checkout process you will have the opportunity to select your preferred dealer. Once you submit your order, a Kerr Sales Representative will place the order with your preferred dealer.