Nickel-titanium alloys: a systematic review
Dental press j. orthod. (Impr.)
; 17(3): 71-82, May-June 2012. ilus, tab
Article
em En
| LILACS
| ID: lil-646352
Biblioteca responsável:
BR1.1
ABSTRACT
OBJECTIVE:
A systematic review on nickel-titanium wires was performed. The strategy was focused on Entrez-PubMed-OLDMEDLINE, Scopus and BioMed Central from 1963 to 2008.METHODS:
Papers in English and French describing the behavior of these wires and laboratorial methods to identify crystalline transformation were considered. A total of 29 papers were selected.RESULTS:
Nickel-titanium wires show exceptional features in terms of elasticity and shape memory effects. However, clinical applications request a deeper knowledge of these properties in order to allow the professional to use them in a rational manner. In addition, the necessary information regarding each alloy often does not correspond to the information given by the manufacturer. Many alloys called "superelastic" do not present this effect; they just behave as less stiff alloys, with a larger springback if compared to the stainless steel wires.CONCLUSIONS:
Laboratory tests are the only means to observe the real behavior of these materials, including temperature transition range (TTR) and applied tensions. However, it is also possible to determine in which TTR these alloys change the crystalline structure.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
LILACS
Tipo de estudo:
Systematic_reviews
Idioma:
En
Revista:
Dental press j. orthod. (Impr.)
Assunto da revista:
ORTODONTIA
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Brasil