Patent ID: 6293794
Filing Date: 2001-09-25
Classification: A61C

Abstract:
A sequential plurality of endodontic instruments comprising a set for extirpating radicular dental canals, each instrument in said set having a working length that includes a shank portion and a tapered end portion, said tapered end portion having a diminishing diameter along a cutting length between a first diameter and second diameter, said first diameter being proximate of a region of integral juncture of said tapered end portion with said shank portion and said second diameter being proximate of a tapered end portion terminus, the second diameter for a first instrument in the sequential plurality of said set substantially being an apex terminus and subsequent instruments in the sequence having a second diameter substantially corresponding to the first diameter of a sequentially adjacent instrument, wherein the working length of each subsequent instrument in said set is less than the working length of a sequentially adjacent instrument by a distance that substantially corresponds to the cutting length of the tapered end portion of said sequentially adjacent instrument.