Endodontic files and obturator devices and methods of manufacturing same
First Claim
1. An endodontic file comprising:
- a tip;
a shank; and
a working length disposed between the tip and the shank, the working length having a helical cutting edge defining a rake angle, wherein the rake angle varies between the tip and the shank, and wherein the taper configuration of the file includes at least two different rates of taper, the taper configuration of the file arranged such that a rate of taper closer to the shank is smaller than a rate of taper closer to the tip, wherein the rake angle continuously increases along the working length from the tip to the shank.
1 Assignment
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Accused Products
Abstract
An endodontic file, or a series of endodontic files, and an endodontic obturator or series of obturators, and methods of manufacturing same. Regarding the endodontic files, they may include a file body extending from a tip region to a shank region, at least one helical flute extending from the tip region towards the shank region. Each helical flute may have an up-sharp cutting edge without a land. For one such set of endodontic files, there is included at least a first and a second file, each one of the files having a tip and a shank, the first file having a tip size that is substantially the same as a tip size of the second file, wherein the first file has a different taper configuration relative to the taper configuration of the second file. The taper configurations of each one of the first and second files include at least two different rates of taper, the taper configurations of each one of the first and second files arranged such that at least one rate of taper closer to the shank of the file is smaller than at least one rate of taper closer to a tip of the file.
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Citations
27 Claims
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1. An endodontic file comprising:
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a tip; a shank; and a working length disposed between the tip and the shank, the working length having a helical cutting edge defining a rake angle, wherein the rake angle varies between the tip and the shank, and wherein the taper configuration of the file includes at least two different rates of taper, the taper configuration of the file arranged such that a rate of taper closer to the shank is smaller than a rate of taper closer to the tip, wherein the rake angle continuously increases along the working length from the tip to the shank. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification