A - Human Necessities – 61 – C
Patent
A - Human Necessities
61
C
83/15, 83/16
A61C 3/06 (2006.01) A61C 5/02 (2006.01)
Patent
CA 1164254
ABSTRACT OF THE DISCLOSURE A dental file is disclosed which is useful in endodontia for removing dead or damaged tissue from a curved tooth root canal while minimizing the tendency to form ledges and slits. The file has a flexible tapered shank which has a cutting surface on its periphery and a pilot projecting from the tapered end of the file for guiding the shank along the curved root canal preventing the cut- ting surface near the end of the shank from gouging into the wall of the curved root canal or penetrating too far through the apical foramen of the root canal. A set of dental files is also disclosed in which the files in the set increase in diameter from one file to the next larger file in the set. In such a set the diameter of the pilot on each file is substantially the same for all files in the set.
383699
Gowling Lafleur Henderson Llp
Inventive Technology International Inc.
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