Review article

Mechanical Properties and Clinical Applications of Orthodontic Wires

Senka Rajić-Meštrović ; School of Dental Medicine, University of Zagreb, Zagreb, Croatia
Marina Lapter ; School of Dental Medicine, University of Zagreb, Zagreb, Croatia

Abstract

This review article describes the mechanical properties and clinical application of stainless steel, cobalt-chromium, nickel-titanium, beta-titanium and multistrained wires. Consolidation of this literature will provide the clinician with a basic working knowledge of orthodontic wire characteristics and usage. The characteristics desirable in an orthodontic wire are large springback, low rigidity, good formability high stored energy, biocompatibility, low surface friction and the possibility of being welded or soldered to auxilaries. Stainless steel wires have remained popular since their introduction to orthodontics because of their formability, biocompatibility and environmental stability, rigidity, resilience, and low cost. Cobalt-chromium wires can be manipulated in a softened state and then subjected to heat treatment. Heat treatment of Co-Cr wires results in a wire with properties similar to those of stainless steel. Nitiniol wires have a good springback and low rigidity. This alloy, however, has poor formability and joinability. Beta- titanium wires provide a combination of adequate springback, average stiffness, good formability, and can be welded to auxilaries. Multi- stranded wires have high springback and low stiffness when compared with solid stainless steel wires.

Keywords

orthodontic wires; characteristics; clinical application

Hrčak ID:

98714

URI

https://hrcak.srce.hr/98714

Publication date:

15.12.1996.

Article data in other languages: croatian

Visits: 3.189 *