Importance

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Abstract

The cutting tool for removing a broken endodontic instrument is an attachment for a low rpm dentist's drill. The cutting tool is a hollow shaft having a drill attachment end adapted for attachment to the head of the dentist's drill and a tooth-engaging end. The tooth-engaging end of the hollow shaft has a plurality of cutting teeth for removing dentin, pulp, and other material in the area around the broken endodontic instrument. The cutting teeth may extend axially from the end of the hollow shaft or may extend laterally from the end of the hollow shaft. The cutting teeth may be sharp on both sides or edges so that the hollow shaft may be rotated either clockwise or counterclockwise, as needed. The hollow shaft is preferably made from a flexible, biocompatible material, such as a nickel-titanium alloy.

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First Claim