Abrading – Abrading process – Drill – thread – thread cutter – reamer – or rotary cutter abrading
Patent
1998-07-21
1999-08-24
Scherbel, David A.
Abrading
Abrading process
Drill, thread, thread cutter, reamer, or rotary cutter abrading
451 28, 433102, A61C 102
Patent
active
059417609
ABSTRACT:
A method of fabricating an endodontic instrument by a machining operation is disclosed, and wherein a wire-like rod composed of a titanium alloy is advanced past a rotating grinding wheel at a relatively slow feed rate, with a sufficient depth of cut to remove all of the material on a given surface without over grinding a previously ground surface, and with the grinding wheel rotating at a relatively slow surface speed. The disclosed method is able to efficiently produce endodontic instruments having a high degree of flexibility, high resistance to torsional breakage, and with sharp cutting edges along the working length.
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Heath Derek E.
Mooneyhan Jerry A.
Banks Derris Holt
Bieber James B.
Dentsply International Inc.
Scherbel David A.
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