Effect of light-curing units in shear bond strength of metallic brackets: an in vitro study
J. appl. oral sci
;
18(1): 68-74, Jan.-Feb. 2010. ilus, tab
Artículo
en Inglés
| LILACS
| ID: lil-545029
ABSTRACT
OBJECTIVES:
To determine the influence of the light curing units on the shear bond strength of orthodontic brackets. MATERIAL ANDMETHODS:
Seventy-two premolars were divided into six groups (n=12) Group I brackets bonded with Transbond and polymerization with halogen light; Group II Transbond and LED; Group III Fuji Ortho and halogen light; Group IV Fuji Ortho and LED; Group V Fuji Ortho, without acid and halogen light; Group VI Fuji Ortho, without acid and LED. The groups were tested to shear strength in a universal testing machine at a crosshead speed of 0.5 mm/min. Data were analyzed statistically by ANOVA and Tukey's test.RESULTS:
The composite resin presented higher shear bond strength than the resin-modified glass ionomer cement (p<0.05). The halogen light and LED sources produced similar shear bond strength (p>0.05).CONCLUSION:
The shear bond strength was influenced by the material but not by the light-curing unit. The use of LED reduced the experimental time by approximately 60 percent, with the same curing efficiency.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Recubrimiento Dental Adhesivo
/
Soportes Ortodóncicos
/
Aleaciones Dentales
/
Cementos Dentales
/
Luces de Curación Dental
Tipo de estudio:
Ensayo Clínico Controlado
Límite:
Humanos
Idioma:
Inglés
Revista:
J. appl. oral sci
Asunto de la revista:
Odontología
Año:
2010
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Pontifical Catholic University of Rio Grande do Sul/BR
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