<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>In Australia, the history of materials engineering for orthodontic wires is generally related to the development of the Begg appliance. Therefore, until recently, it has helped in the search for <italic>light resilient forces</italic> produced by fine high-tensile stainless steel wires. Recently there has been added the desire to include wires of a low modulus of elasticity which also produce light forces but in larger diameter rectangular wires. There have been three periods of development, namely, up to and including the Second World War, up to Dr Begg’s passing, and subsequently.</p>
<p>A general metallurgical background for archwire selection and use is given including the following considerations: stiffness, flexibility, zero stress relaxation, formability, resiliency, high yield phenomena, and wire fracture and crack propagation; and how some of these may be <italic>evaluated by the fingers.</italic></p>
</abstract>

In Australia, the history of materials engineering for orthodontic wires is generally related to the development of the Begg appliance. Therefore, until recently, it has helped in the search for light resilient forces produced by fine high-tensile stainless steel wires. Recently there has been added the desire to include wires of a low modulus of elasticity which also produce light forces but in larger diameter rectangular wires. There have been three periods of development, namely, up to and including the Second World War, up to Dr Begg’s passing, and subsequently.
A general metallurgical background for archwire selection and use is given including the following considerations: stiffness, flexibility, zero stress relaxation, formability, resiliency, high yield phenomena, and wire fracture and crack propagation; and how some of these may be evaluated by the fingers.

Applied materials engineering for orthodontic wires

Australasian Orthodontic Journal

This work is licensed under the Creative Commons Attribution 4.0 International License.

{"article-title":"Applied materials engineering for orthodontic wires"}

In Australia, the history of materials engineering for orthodontic wires is generally related to the development of the Begg appliance. Therefore, until...

Applied materials engineering for orthodontic wires

Published Online: Jan 19, 2024

Page range: 22 - 29

DOI: https://doi.org/10.2478/aoj-1989-0005

Keywords
Begg appliance, wire stiffness, wire flexibility, zero stress relaxation, wire fracture and crack propogation

© 1989 Arthur J. Wilcock, published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Applied materials engineering for orthodontic wires

Published Online: Jan 19, 2024

Page range: 22 - 29

DOI: https://doi.org/10.2478/aoj-1989-0005

KeywordsBegg appliance, wire stiffness, wire flexibility, zero stress relaxation, wire fracture and crack propogation

© 1989 Arthur J. Wilcock, published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
Begg appliance, wire stiffness, wire flexibility, zero stress relaxation, wire fracture and crack propogation