effect of light-curing units in shear bond strength of metallic brackets: an in vitro study

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ID: 231524
2010
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Abstract
OBJECTIVES: To determine the influence of the light curing units on the shear bond strength of orthodontic brackets. MATERIAL AND METHODS: 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%, with the same curing efficiency.
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retamoso2010journaleffect Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Luciana Borges Retamoso, Niége Michelle Lazzari Onofre, Luciane Hann, Ernani Menezes Marchioro
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Journal journal of animal and plant sciences
Year 2010
DOI
10.1590/S1678-77572010000100012
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572010000100012
Keywords
LED shear bond strength bracketsdentistry

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