Title:
Reamer type root canal instrument
Document Type and Number:
Japanese Patent JP6139413
Kind Code:
B2
Abstract:
A dental reamer root canal instrument has a working area that is substantially cylindrical or conical along a longitudinal axis, the instrument including X helical flutes forming X lips of helical cuts, a cut lip being formed by the intersection of two consecutive flutes, wherein X is equal to or greater than three. Over a cross-section of the instrument, the angles (alphaI, betaI, gammaI) between two consecutive cut lips, measured relative to the longitudinal axis of the instrument, are all different. A method for producing the root canal instrument in a cylindrical or conical rod is also disclosed. The rod is made of a metal or metal alloy material selected for the mechanical bending strength and shape memory properties thereof. The method includes steps for using a grinding wheel to machine a flute to a predefined depth and steps for rotating the rod in front of the machining wheel.
Inventors:
Molduni, Julian
El Abed, Rashid
El Abed, Rashid
Application Number:
JP2013554931A
Publication Date:
May 31, 2017
Filing Date:
February 24, 2012
Export Citation:
Assignee:
MICRO MEGA INTERNATIONAL MANUFACTURES
International Classes:
A61C5/40; A61C5/42
Domestic Patent References:
| JP2000515395A | ||||
| JP2008501541A | ||||
| JP2008520354A | ||||
| JP60129042A |
Foreign References:
| US20040023186 | ||||
| US20070059663 | ||||
| FR2951067A1 | ||||
| FR2935260A1 |
Attorney, Agent or Firm:
Keiichi Ota
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