Root canal instrument set
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Jan 23, 2003
app pub date -
Jul 23, 2002
filing date -
Jul 23, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The invention relates to a root canal instrument set comprising at least two root canal instruments, each root canal instrument being provided with a collar having a shaft end at one end and a working part including at least one cutting edge on the other end, the working part being shaped conically or crowned, wherein the cone angle of the working parts decrease from the preceding root canal instrument to the subsequent root canal instrument and the working part of the respectively preceding root canal instrument has a larger diameter than the working part of the respectively subsequent root canal instrument. Alternatively, the radii of the crowned working parts may increase from the preceding root canal instrument to the subsequent root canal instrument, and the working part of the preceding root canal instrument may have a larger diameter than the working part of the subsequent root canal instrument.
First Claim
Family
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Cited Art Landscape
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