Dentistry – Apparatus – Tool bit
Patent
1995-10-20
1998-01-06
Wilson, John J.
Dentistry
Apparatus
Tool bit
433119, 427250, 427299, A61C 306
Patent
active
057047871
ABSTRACT:
An ultrasonic dental tip that is hardened by a novel process that includes roughing the tip and then applying a metal nitride coating, such as titanium nitride (Ti--N) or zirconium nitride (Zr--N). The roughing is preferably accomplished by sandblasting the tip with a microblaster. Optionally the tip may be heat treated after it has been roughened and prior to being coated in order to further increase its hardness.
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Hickok Teresa R.
Martin Claude E.
San Diego Swiss Machining Inc.
Wilson John J.
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