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Effect of saliva contamination on cementation of orthodontic brackets using different adhesive systems

BACKGROUND: The enamel condition and the quality of surface are points that need to be considered for achieving optimal efficiency in the treatment with orthodontic brackets. The aim of this study was to assess the immediate bond strength of metallic brackets cemented to dental. MATERIAL AND METHODS...

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Autores principales: Robaski, Aliden-Willian, Pamato, Saulo, Tomás-de Oliveira, Marcelo, Pereira, Jefferson-Ricardo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medicina Oral S.L. 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5549592/
https://www.ncbi.nlm.nih.gov/pubmed/28828161
http://dx.doi.org/10.4317/jced.53576
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author Robaski, Aliden-Willian
Pamato, Saulo
Tomás-de Oliveira, Marcelo
Pereira, Jefferson-Ricardo
author_facet Robaski, Aliden-Willian
Pamato, Saulo
Tomás-de Oliveira, Marcelo
Pereira, Jefferson-Ricardo
author_sort Robaski, Aliden-Willian
collection PubMed
description BACKGROUND: The enamel condition and the quality of surface are points that need to be considered for achieving optimal efficiency in the treatment with orthodontic brackets. The aim of this study was to assess the immediate bond strength of metallic brackets cemented to dental. MATERIAL AND METHODS: Forty human premolars were double-sectioned, placed in PVC matrices and randomly divided into 10 groups (n=8). They received artificial saliva contamination before or after the application of adhesive systems, except for the control groups. The metallic brackets were cemented using two orthodontic cements (Transbond™ Plus Color Change, 3M Unitek e Transbond™ XT Light, 3M Unitek). The specimens were subjected to mechanical shear bond strength testing and classified according to the fracture pattern. The results were analyzed using a two-way ANOVA and Tukey’s test for multiple comparisons (p<0.05). RESULTS: ANOVA analysis showed statistically significant differences between the groups (p=0.01). The Tukey’s multiple comparison test indicated statistically significant difference between G6 and G7 groups (p<0.05). A high prevalence of adhesive failure in the groups receiving the hydrophobic adhesive system. CONCLUSIONS: The saliva contamination prior to the application of a hydrophobic simplified conventional adhesive system was responsible for decreasing the immediate bond strength values of brackets cemented on the dental enamel. Key words:Bonding, orthodontic brackets, shear bond strength, saliva, adhesive systems.
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spelling pubmed-55495922017-08-21 Effect of saliva contamination on cementation of orthodontic brackets using different adhesive systems Robaski, Aliden-Willian Pamato, Saulo Tomás-de Oliveira, Marcelo Pereira, Jefferson-Ricardo J Clin Exp Dent Research BACKGROUND: The enamel condition and the quality of surface are points that need to be considered for achieving optimal efficiency in the treatment with orthodontic brackets. The aim of this study was to assess the immediate bond strength of metallic brackets cemented to dental. MATERIAL AND METHODS: Forty human premolars were double-sectioned, placed in PVC matrices and randomly divided into 10 groups (n=8). They received artificial saliva contamination before or after the application of adhesive systems, except for the control groups. The metallic brackets were cemented using two orthodontic cements (Transbond™ Plus Color Change, 3M Unitek e Transbond™ XT Light, 3M Unitek). The specimens were subjected to mechanical shear bond strength testing and classified according to the fracture pattern. The results were analyzed using a two-way ANOVA and Tukey’s test for multiple comparisons (p<0.05). RESULTS: ANOVA analysis showed statistically significant differences between the groups (p=0.01). The Tukey’s multiple comparison test indicated statistically significant difference between G6 and G7 groups (p<0.05). A high prevalence of adhesive failure in the groups receiving the hydrophobic adhesive system. CONCLUSIONS: The saliva contamination prior to the application of a hydrophobic simplified conventional adhesive system was responsible for decreasing the immediate bond strength values of brackets cemented on the dental enamel. Key words:Bonding, orthodontic brackets, shear bond strength, saliva, adhesive systems. Medicina Oral S.L. 2017-07-01 /pmc/articles/PMC5549592/ /pubmed/28828161 http://dx.doi.org/10.4317/jced.53576 Text en Copyright: © 2017 Medicina Oral S.L. http://creativecommons.org/licenses/by/2.5/ 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 Research
Robaski, Aliden-Willian
Pamato, Saulo
Tomás-de Oliveira, Marcelo
Pereira, Jefferson-Ricardo
Effect of saliva contamination on cementation of orthodontic brackets using different adhesive systems
title Effect of saliva contamination on cementation of orthodontic brackets using different adhesive systems
title_full Effect of saliva contamination on cementation of orthodontic brackets using different adhesive systems
title_fullStr Effect of saliva contamination on cementation of orthodontic brackets using different adhesive systems
title_full_unstemmed Effect of saliva contamination on cementation of orthodontic brackets using different adhesive systems
title_short Effect of saliva contamination on cementation of orthodontic brackets using different adhesive systems
title_sort effect of saliva contamination on cementation of orthodontic brackets using different adhesive systems
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5549592/
https://www.ncbi.nlm.nih.gov/pubmed/28828161
http://dx.doi.org/10.4317/jced.53576
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