Fios ortodônticos superelásticos e sua aplicabilidade na clínica ortodôntica: revisão da literatura

• Autor(a) principal: Jacob, Vanessa Peret [UNESP]
• Data de Publicação: 2010
• Outros Autores: Oliveira, Derly Tescaro Narcizo de [UNESP], Bigliazzi, Renato [UNESP], Bertoz, André Pinheiro de Magalhães [UNESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://www.livrosodonto.com.br/artigo/86/fios-ortodonticos-uperelasticos-e-sua-aplicabilidade-na-clinica-ortodontica-revisao-da-literatura.html#.VqZhp_krK9I; http://hdl.handle.net/11449/133409
• topic: Orthodontic wires; Superelasticity; Biomechanics; Fios ortodônticos; Superelasticidade; Biomecânica

During clinical routine, the orthodontist uses several materials, which include metallic alloys in the form of metallic wires. However, it is necessary that the professional has some knowledge of the properties of those wires. Different types of wires are commercially available: stainless steel wires, chrome-cobalt wires, nickel-titanium wires and beta-titanium wires. Among the nickel-titanium wires, there are three subdivisions: a conventional alloy and two superelastic alloys. The superelasticity, associated to the effect of form memory, is a property used in orthodontics to initiate the dental movement in the first phase of the orthodontic treatment. This property is considered to be biologically compatible with the effective dental movement. These wires are available at the market in different transformation temperatures, and they offer the best adaptation in the groove of the bracket, simplicity and a faster treatment. However, they present little formability, and they don’t accept solder. They are also more onerous than other wires. Moreover, the low rigidity of these wires doesn’t allow them to be used for the retraction of the anterior teeth or closing of spaces. Therefore, the coherent use of superelastic orthodontic wires is recommended, accompanied by a detailed diagnosis and planning, so the result will be an efficient orthodontic correction, accomplished in a shorter period of time.