The Heat Treatment of Wires: A Preliminary Report

Author:

Waters N. E.1,Houston W. J. B.1,Stephens C. D.2

Affiliation:

1. The Royal Dental Hospital School of Dental Surgery, Leicester Square, London WC2H 7LJ

2. The Department of Dental Surgery, University of Bristol

Abstract

The changes induced by a heat treatment have been examined on a standard 18/8 Stainless Steel wire (grade 302 S25 of BS 970: Part 4), and a heat treatable wire of cobalt—chrome—nickel alloy. The flexural rigidity, elastic properties after forming over a wide strain range, resistance to failure in bending and elastic recovery after a heat treatment were examined. The optimal heat treatments were found to be 400–450°C and 475–525°C for the 18/8 and cobalt—chrome—nickel alloy respectively. These optima were unchanged for heat-treatment times between 1 and 16 minutes.

Publisher

SAGE Publications

Subject

General Medicine

Reference13 articles.

1. Heat treating stainless steel for orthodontics

2. CoombeE. C. (1975) ‘Notes on Dental Materials’, 2nd Edition, Edinburgh and London: Churchill, Livingstone.

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1. Bending stiffness of two aesthetic orthodontic archwires: An in vitro comparative study;Clinical Materials;1994-01

2. Metal release from heat-treated orthodontic archwires;Acta Odontologica Scandinavica;1987-01

3. Comparative range of orthodontic wires;American Journal of Orthodontics and Dentofacial Orthopedics;1986-10

4. The characterization of arch wires for the initial alignment of irregular teeth;American Journal of Orthodontics;1981-04

5. Dental materials: 1976 literature review Part I I;Journal of Dentistry;1978-06

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