Cargando…

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

OBJECTIVE: 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...

Descripción completa

Detalles Bibliográficos
Autores principales: RETAMOSO, Luciana Borges, ONOFRE, Niége Michelle Lazzari, HANN, Luciane, MARCHIORO, Ernani Menezes
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Faculdade de Odontologia de Bauru da Universidade de São Paulo 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5349030/
https://www.ncbi.nlm.nih.gov/pubmed/20379684
http://dx.doi.org/10.1590/S1678-77572010000100012
_version_ 1782514383923970048
author RETAMOSO, Luciana Borges
ONOFRE, Niége Michelle Lazzari
HANN, Luciane
MARCHIORO, Ernani Menezes
author_facet RETAMOSO, Luciana Borges
ONOFRE, Niége Michelle Lazzari
HANN, Luciane
MARCHIORO, Ernani Menezes
author_sort RETAMOSO, Luciana Borges
collection PubMed
description OBJECTIVE: 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.
format Online
Article
Text
id pubmed-5349030
institution National Center for Biotechnology Information
language English
publishDate 2010
publisher Faculdade de Odontologia de Bauru da Universidade de São Paulo
record_format MEDLINE/PubMed
spelling pubmed-53490302017-03-17 Effect of light-curing units in shear bond strength of metallic brackets: an in vitro study RETAMOSO, Luciana Borges ONOFRE, Niége Michelle Lazzari HANN, Luciane MARCHIORO, Ernani Menezes J Appl Oral Sci Original Articles OBJECTIVE: 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. Faculdade de Odontologia de Bauru da Universidade de São Paulo 2010 /pmc/articles/PMC5349030/ /pubmed/20379684 http://dx.doi.org/10.1590/S1678-77572010000100012 Text en http://creativecommons.org/licenses/by/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Articles
RETAMOSO, Luciana Borges
ONOFRE, Niége Michelle Lazzari
HANN, Luciane
MARCHIORO, Ernani Menezes
Effect of light-curing units in shear bond strength of metallic brackets: an in vitro study
title Effect of light-curing units in shear bond strength of metallic brackets: an in vitro study
title_full Effect of light-curing units in shear bond strength of metallic brackets: an in vitro study
title_fullStr Effect of light-curing units in shear bond strength of metallic brackets: an in vitro study
title_full_unstemmed Effect of light-curing units in shear bond strength of metallic brackets: an in vitro study
title_short Effect of light-curing units in shear bond strength of metallic brackets: an in vitro study
title_sort effect of light-curing units in shear bond strength of metallic brackets: an in vitro study
topic Original Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5349030/
https://www.ncbi.nlm.nih.gov/pubmed/20379684
http://dx.doi.org/10.1590/S1678-77572010000100012
work_keys_str_mv AT retamosolucianaborges effectoflightcuringunitsinshearbondstrengthofmetallicbracketsaninvitrostudy
AT onofreniegemichellelazzari effectoflightcuringunitsinshearbondstrengthofmetallicbracketsaninvitrostudy
AT hannluciane effectoflightcuringunitsinshearbondstrengthofmetallicbracketsaninvitrostudy
AT marchioroernanimenezes effectoflightcuringunitsinshearbondstrengthofmetallicbracketsaninvitrostudy