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Effect of bracket base design on shear bond strength to feldspathic porcelain

OBJECTIVES: This study sought to assess the effect of bracket base design on the shear bond strength (SBS) of the bracket to feldspathic porcelain. MATERIALS AND METHODS: This in vitro, experimental study was conducted on 40 porcelain-fused-to-metal restorations and four different bracket base desig...

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Autores principales: Dalaie, Kazem, Mirfasihi, Armin, Eskandarion, Solmaz, Kabiri, Sattar
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4926587/
https://www.ncbi.nlm.nih.gov/pubmed/27403052
http://dx.doi.org/10.4103/1305-7456.184161
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author Dalaie, Kazem
Mirfasihi, Armin
Eskandarion, Solmaz
Kabiri, Sattar
author_facet Dalaie, Kazem
Mirfasihi, Armin
Eskandarion, Solmaz
Kabiri, Sattar
author_sort Dalaie, Kazem
collection PubMed
description OBJECTIVES: This study sought to assess the effect of bracket base design on the shear bond strength (SBS) of the bracket to feldspathic porcelain. MATERIALS AND METHODS: This in vitro, experimental study was conducted on 40 porcelain-fused-to-metal restorations and four different bracket base designs were bonded to these specimens. The porcelain surfaces were etched, silanized, and bonded to brackets. Specimens were thermocycler, incubated for 24 h and were subjected to SBS. Data were analyzed using Shapiro–Wilk test, Levene's test, one-way ANOVA, and Tukey's honest significant difference test. Adhesive remnant index was calculated and compared using Fisher's exact test. RESULTS: One-way ANOVA showed that the SBS values were significantly different among the four groups (P < 0.001). Groups 1, 2, and 4 were not significantly different, but group 3 had significantly lower SBS (P < 0.001). Fractures mostly occurred at the porcelain-adhesive interface in Groups 1 and 2 while in Groups 3 and 4, bracket-adhesive and mixed failures were more common. CONCLUSION: The bracket base design significantly affects the SBS to feldspathic porcelain.
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spelling pubmed-49265872016-07-12 Effect of bracket base design on shear bond strength to feldspathic porcelain Dalaie, Kazem Mirfasihi, Armin Eskandarion, Solmaz Kabiri, Sattar Eur J Dent Original Article OBJECTIVES: This study sought to assess the effect of bracket base design on the shear bond strength (SBS) of the bracket to feldspathic porcelain. MATERIALS AND METHODS: This in vitro, experimental study was conducted on 40 porcelain-fused-to-metal restorations and four different bracket base designs were bonded to these specimens. The porcelain surfaces were etched, silanized, and bonded to brackets. Specimens were thermocycler, incubated for 24 h and were subjected to SBS. Data were analyzed using Shapiro–Wilk test, Levene's test, one-way ANOVA, and Tukey's honest significant difference test. Adhesive remnant index was calculated and compared using Fisher's exact test. RESULTS: One-way ANOVA showed that the SBS values were significantly different among the four groups (P < 0.001). Groups 1, 2, and 4 were not significantly different, but group 3 had significantly lower SBS (P < 0.001). Fractures mostly occurred at the porcelain-adhesive interface in Groups 1 and 2 while in Groups 3 and 4, bracket-adhesive and mixed failures were more common. CONCLUSION: The bracket base design significantly affects the SBS to feldspathic porcelain. Medknow Publications & Media Pvt Ltd 2016 /pmc/articles/PMC4926587/ /pubmed/27403052 http://dx.doi.org/10.4103/1305-7456.184161 Text en Copyright: © European Journal of Dentistry http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.
spellingShingle Original Article
Dalaie, Kazem
Mirfasihi, Armin
Eskandarion, Solmaz
Kabiri, Sattar
Effect of bracket base design on shear bond strength to feldspathic porcelain
title Effect of bracket base design on shear bond strength to feldspathic porcelain
title_full Effect of bracket base design on shear bond strength to feldspathic porcelain
title_fullStr Effect of bracket base design on shear bond strength to feldspathic porcelain
title_full_unstemmed Effect of bracket base design on shear bond strength to feldspathic porcelain
title_short Effect of bracket base design on shear bond strength to feldspathic porcelain
title_sort effect of bracket base design on shear bond strength to feldspathic porcelain
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4926587/
https://www.ncbi.nlm.nih.gov/pubmed/27403052
http://dx.doi.org/10.4103/1305-7456.184161
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