Dental and medical instruments comprising titanium

  • US 8,562,341 B2
  • Filed: 12/23/2011
  • Issued: 10/22/2013
  • Est. Priority Date: 06/08/2004
  • Status: Active Grant
First Claim
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1. A method for manufacturing or modifying a dental instrument or device, the method comprising:

  • (a) providing a dental instrument or device including an elongated shank comprising a superelastic nickel titanium alloy, and(b) after step (a), heat-treating the entire instrument or device at a temperature from 400°

    C up to but not equal to the melting point of the superelastic nickel titanium alloy,wherein the heat-treated instrument or device has an angle greater than 10 degrees of permanent deformation after torque at 45°

    of flexion when tested in accordance with ISO Standard 3630-1.

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