Dental and Medical Instruments Comprising Titanium
First Claim
1. A method for manufacturing or modifying a dental or medical instrument or device, the method comprising:
- (a) providing a dental or medical instrument or device comprising a titanium alloy, and(b) heat-treating the entire instrument or device at a temperature from 400°
C. up to but not equal to the melting point of the titanium alloy in an atmosphere consisting essentially of a gas unreactive with the instrument or device.
1 Assignment
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Accused Products
Abstract
Endodontic instruments for use in performing root canal therapy on a tooth are disclosed. In one form, the instruments include an elongate shank having a cutting edge extending from a distal end of the shank along an axial length of the shank. The shank comprises a titanium alloy, and the shank is prepared by heat-treating the shank at a temperature above 25° C. in an atmosphere consisting essentially of a gas unreactive with the shank. In another form, the endodontic instruments have an elongate shank having a cutting edge extending from a distal end of the shank along an axial length of the shank. The shank consists essentially of a titanium alloy selected from alpha-titanium alloys, beta-titanium alloys, and alpha-beta-titanium alloys. The instruments solve the problems encountered when cleaning and enlarging a curved root canal.
16 Citations
15 Claims
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1. A method for manufacturing or modifying a dental or medical instrument or device, the method comprising:
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(a) providing a dental or medical instrument or device comprising a titanium alloy, and (b) heat-treating the entire instrument or device at a temperature from 400°
C. up to but not equal to the melting point of the titanium alloy in an atmosphere consisting essentially of a gas unreactive with the instrument or device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification