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Cyclic Fatigue of Protaper Instruments

Published byAndreia Maria de Lourdes Palha Gonçalves Modified over 6 years ago

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Presentation on theme: "Cyclic Fatigue of Protaper Instruments"— Presentation transcript:

1 Cyclic Fatigue of Protaper Instruments
Hélio Pereira Lopes, DDS, PhD, Edson Jorge Lima Moreira, DDS, MSc, Carlos Nelson Elias, Eng, PhD, Renata Andriola de Almeida, Mônica Schultz Neves  Journal of Endodontics  Volume 33, Issue 1, Pages (January 2007) DOI: /j.joen Copyright © 2007 American Association of Endodontists Terms and Conditions

2 Figure 1 Schematic drawing of the canals used in the tests. (A) Angle 90 degrees and arc 9.4 mm, and (B) angle 135 degrees and arc 14.1 mm. (C) Surface fracture with ductile morphological characteristics. It is possible to observe the dimples. (D) Surface fracture in the helical shaft of the fractured instrument with an absence of plastic deformation. Journal of Endodontics  , 55-57DOI: ( /j.joen ) Copyright © 2007 American Association of Endodontists Terms and Conditions

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