Evaluation of austenitic-ferritic stainless steel wires for orthodontic applications


Autoria(s): ITMAN FILHO, A.; SILVA, R. V.; GOUVEA, C. A. R.; CASTELETTI, L. C.
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

18/10/2012

18/10/2012

2008

Resumo

Several studies have shown that austenitic stainless steels are suitable for use in the final phases of orthodontic treatments, such as finishing and retention. These steels demonstrate appropriate mechanical properties, such as high ultimate tensile strength and good corrosion resistance. A new class of materials, the austenic-ferritic stainless steels, is substituting for austenitic stainless steels in several industrial applications where these properties are necessary. This work supports the hypothesis that orthodontic wires of austenic-ferritic stainless steels can replace austenitic stainless steels. The advantages are cost reduction and decrease of the nickel hypersensitivity effect in patients undergoing orthodontic treatments. The object of this study was to evaluate wires of austenitic-ferritic stainless steel SEW 410 Nr. 14517 (Cr26Ni6Mo3Cu3) produced by cold working through rolling and drawing processes. Tests were performed to evaluate the ultimate tensile strength, hardness, ductility, and formability. In accordance with technical standards the wires exhibited ultimate tensile strength and ductility suitable for orthodontic clinical applications. These austenitie-ferritic wires can be an alternative to substitute the common commercial wires of austenic stainless steels with the advantage of decreasing the nickel content.

Identificador

JOURNAL OF TESTING AND EVALUATION, v.36, n.2, p.198-200, 2008

0090-3973

http://producao.usp.br/handle/BDPI/18034

http://apps.isiknowledge.com/InboundService.do?Func=Frame&product=WOS&action=retrieve&SrcApp=EndNote&UT=000256947600011&Init=Yes&SrcAuth=ResearchSoft&mode=FullRecord

Idioma(s)

eng

Publicador

AMER SOC TESTING MATERIALS

Relação

Journal of Testing and Evaluation

Direitos

restrictedAccess

Copyright AMER SOC TESTING MATERIALS

Palavras-Chave #orthodontic wires #duplex stainless steel #nickel hypersensitivity #Materials Science, Characterization & Testing
Tipo

article

original article

publishedVersion