Date of Award

Spring 1997

Document Type

Thesis - Restricted

Degree Name

Master of Science (MS)



First Advisor

Walia, Harmeet D.

Second Advisor

Dhuru, Virendra

Third Advisor

Austin, Peter B.


Many endodontists agree that biomechanical cleaning and shaping of the root canal system is the key aspect of root canal treatment. Removal of canal contents and affected dentin surrounding the canal system is most commonly accomplished with the use of endodontic files. Different file designs and different alloys have been used to improve cutting efficiency of files. Operator controlled variables such as stroke rate and load also have an influence on the efficiency of the files. There has been a multitude of new file designs incorporating nickel titanium (NiTi). NiTi is used primarily for its superior flexibility compared to the standard stainless steel file. The advent of new NiTi instrumentation though has not been accompanied by sufficient clinical or experimental trials to determine optimal uses for these files. This research will examine cutting efficiency of stainless steel versus NiTi files of similar design and cross sectional shape used at various stroke rates.



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