Title:
幅狭のラジアルランドを有する歯内治療用器具
Document Type and Number:
Japanese Patent JP6472446
Kind Code:
B2
Abstract:
An improved endodontic instrument has a uniform tapered working length with at least two helical shaped flutes and spiraled lands having a land width no greater than 0.101 mm as measured in a plane perpendicular the central axis of rotation of instrument. The land width is preferably constant along the working length but may vary provided it does not exceed 0.101 mm. The instrument resists mid-root transportation and exhibits superior fatigue performance and cutting efficiency compared to prior art instruments.
Inventors:
Jeun Belgins Andris
Application Number:
JP2016527069A
Publication Date:
February 20, 2019
Filing Date:
July 16, 2014
Export Citation:
Assignee:
Jeun Belgins Andris
International Classes:
A61C5/42
Domestic Patent References:
| JP58501854A | ||||
| JP2009502349A |
Foreign References:
| US20070184406 | ||||
| US20060210947 | ||||
| US4934934 |
Attorney, Agent or Firm:
Masayuki Masabayashi
Hayashi Ichiyoshi
Tetsuo Shiba
Iwaike Mitsuru
Hayashi Ichiyoshi
Tetsuo Shiba
Iwaike Mitsuru