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Shear Bond Strength between Orthodontic Brackets and Monolithic 4Y-TZP: An In Vitro Study

The aim of this study was to evaluate the effect of different surface treatments on the shear bond strength (SBS) between metal orthodontic brackets and monolithic zirconia surfaces bonded with resin composite. Fifty monolithic zirconia (4Y-TZP) disks were sintered and glazed. Specimens were divided...

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Autores principales: Cakir, Emre, Duman, Ayse Nurcan, Yildirim, Arzu Zeynep, Cevik, Pinar
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10383428/
https://www.ncbi.nlm.nih.gov/pubmed/37512447
http://dx.doi.org/10.3390/ma16145173
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author Cakir, Emre
Duman, Ayse Nurcan
Yildirim, Arzu Zeynep
Cevik, Pinar
author_facet Cakir, Emre
Duman, Ayse Nurcan
Yildirim, Arzu Zeynep
Cevik, Pinar
author_sort Cakir, Emre
collection PubMed
description The aim of this study was to evaluate the effect of different surface treatments on the shear bond strength (SBS) between metal orthodontic brackets and monolithic zirconia surfaces bonded with resin composite. Fifty monolithic zirconia (4Y-TZP) disks were sintered and glazed. Specimens were divided into five groups (n = 10) for different surface treatments: control, nano second fiber laser, sandblasting, grinding and tribochemical coating (CoJet Sand 30-μm). Metal orthodontic brackets were bonded to monolithic zirconia surface by two-component orthodontic adhesive. After 500 cycles of thermocycling, shear bond strength values were measured by a universal testing machine at a cross head speed of 0.5 mm/min. The data was recorded as MPa and statistically analyzed with One-way ANOVA, Levene’s LSD tests with Bonferroni corrections. The significance level was α = 0.05. The surface topography of one specimen of each group was evaluated by scanning electron microscopy (SEM). Statistically significant difference was observed among study groups (p = 0.018). The lowest shear bond strength was observed in the control group (3.92 ± 1.9). Tribochemical coating showed the highest bond strength (7.44 ± 2.9), which was statistically different from the control and nano second laser (4.3 ± 1.4) groups but not statistically different from grinding (6.15 ± 3.1) or sandblasting (6.47 ± 3.3). SEM images showed comprehensive results of each surface treatment on monolithic zirconia. All failure modes were recorded as adhesive between the composite resin and monolithic zirconia. Based on the findings of this study, it can be concluded that grinding, sandblasting and tribochemical coating techniques showed clinically acceptable bond strength within the range of 6–8 MPa. These surface treatments can be considered suitable for achieving a durable bond between metal orthodontic brackets and monolithic 4Y-TZP ceramic surfaces.
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spelling pubmed-103834282023-07-30 Shear Bond Strength between Orthodontic Brackets and Monolithic 4Y-TZP: An In Vitro Study Cakir, Emre Duman, Ayse Nurcan Yildirim, Arzu Zeynep Cevik, Pinar Materials (Basel) Article The aim of this study was to evaluate the effect of different surface treatments on the shear bond strength (SBS) between metal orthodontic brackets and monolithic zirconia surfaces bonded with resin composite. Fifty monolithic zirconia (4Y-TZP) disks were sintered and glazed. Specimens were divided into five groups (n = 10) for different surface treatments: control, nano second fiber laser, sandblasting, grinding and tribochemical coating (CoJet Sand 30-μm). Metal orthodontic brackets were bonded to monolithic zirconia surface by two-component orthodontic adhesive. After 500 cycles of thermocycling, shear bond strength values were measured by a universal testing machine at a cross head speed of 0.5 mm/min. The data was recorded as MPa and statistically analyzed with One-way ANOVA, Levene’s LSD tests with Bonferroni corrections. The significance level was α = 0.05. The surface topography of one specimen of each group was evaluated by scanning electron microscopy (SEM). Statistically significant difference was observed among study groups (p = 0.018). The lowest shear bond strength was observed in the control group (3.92 ± 1.9). Tribochemical coating showed the highest bond strength (7.44 ± 2.9), which was statistically different from the control and nano second laser (4.3 ± 1.4) groups but not statistically different from grinding (6.15 ± 3.1) or sandblasting (6.47 ± 3.3). SEM images showed comprehensive results of each surface treatment on monolithic zirconia. All failure modes were recorded as adhesive between the composite resin and monolithic zirconia. Based on the findings of this study, it can be concluded that grinding, sandblasting and tribochemical coating techniques showed clinically acceptable bond strength within the range of 6–8 MPa. These surface treatments can be considered suitable for achieving a durable bond between metal orthodontic brackets and monolithic 4Y-TZP ceramic surfaces. MDPI 2023-07-23 /pmc/articles/PMC10383428/ /pubmed/37512447 http://dx.doi.org/10.3390/ma16145173 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Cakir, Emre
Duman, Ayse Nurcan
Yildirim, Arzu Zeynep
Cevik, Pinar
Shear Bond Strength between Orthodontic Brackets and Monolithic 4Y-TZP: An In Vitro Study
title Shear Bond Strength between Orthodontic Brackets and Monolithic 4Y-TZP: An In Vitro Study
title_full Shear Bond Strength between Orthodontic Brackets and Monolithic 4Y-TZP: An In Vitro Study
title_fullStr Shear Bond Strength between Orthodontic Brackets and Monolithic 4Y-TZP: An In Vitro Study
title_full_unstemmed Shear Bond Strength between Orthodontic Brackets and Monolithic 4Y-TZP: An In Vitro Study
title_short Shear Bond Strength between Orthodontic Brackets and Monolithic 4Y-TZP: An In Vitro Study
title_sort shear bond strength between orthodontic brackets and monolithic 4y-tzp: an in vitro study
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10383428/
https://www.ncbi.nlm.nih.gov/pubmed/37512447
http://dx.doi.org/10.3390/ma16145173
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AT cevikpinar shearbondstrengthbetweenorthodonticbracketsandmonolithic4ytzpaninvitrostudy