Evaluation of palatal arches made from low-nickel stainless steel wire
Braz. j. oral sci
;
8(3): 149-153, July-Sept. 2009. ilus, tab
Artigo
em Inglês
| LILACS, BBO
| ID: lil-563324
ABSTRACT
Aim:
To test the hypothesis that there is no difference between stainless steel wires and low-nickel stainless steel ones regarding their mechanical behavior. Force, resilience and elasticity modulus produced by Coffin, W arch, and Quad-helix appliances made of 0.032-inch and 0.036-inch wires were evaluated.Methods:
Fifteen appliances of each type (Coffin, W arch, and Quad-helix) were made according to metal alloy and wire thickness. All arches (12 groups of 15 appliances each) were submitted to mechanical compression test by using an EMIC DL-10000 machine simulating activations of 5, 8, 10, and 12 mm. Analysis of variance with multiple comparisons and Tukeys test were used (P < 0.05) for analyzing statistically force and resilience data.Results:
The results showed that mechanical properties depended on shape of the appliance, diameter of the wire, amount of activation, and metal alloy.Conclusions:
Appliances made from lownickel stainless steel alloy had higher release of force, resilience and elasticity modulus compared to those made of stainless steel alloy.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Fios Ortodônticos
/
Aço Inoxidável
/
Estresse Mecânico
/
Teste de Materiais
/
Fenômenos Mecânicos
/
Módulo de Elasticidade
Idioma:
Inglês
Revista:
Braz. j. oral sci
Assunto da revista:
Odontologia
Ano de publicação:
2009
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Federal University of Rio de Janeiro/BR
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