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Resin bonding of metal brackets to glazed zirconia with a porcelain primer
OBJECTIVE: The aims of this study were to compare the shear bond strength between orthodontic metal brackets and glazed zirconia using different types of primer before applying resin cement and to determine which primer was more effective. METHODS: Zirconia blocks were milled and embedded in acrylic...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Korean Association of Orthodontists
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4664906/ https://www.ncbi.nlm.nih.gov/pubmed/26629476 http://dx.doi.org/10.4041/kjod.2015.45.6.299 |
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author | Lee, Jung-Hwan Lee, Milim Kim, Kyoung-Nam Hwang, Chung-Ju |
author_facet | Lee, Jung-Hwan Lee, Milim Kim, Kyoung-Nam Hwang, Chung-Ju |
author_sort | Lee, Jung-Hwan |
collection | PubMed |
description | OBJECTIVE: The aims of this study were to compare the shear bond strength between orthodontic metal brackets and glazed zirconia using different types of primer before applying resin cement and to determine which primer was more effective. METHODS: Zirconia blocks were milled and embedded in acrylic resin and randomly assigned to one of four groups: nonglazed zirconia with sandblasting and zirconia primer (NZ); glazed zirconia with sandblasting, etching, and zirconia primer (GZ); glazed zirconia with sandblasting, etching, and porcelain primer (GP); and glazed zirconia with sandblasting, etching, zirconia primer, and porcelain primer (GZP). A stainless steel metal bracket was bonded to each target surface with resin cement, and all specimens underwent thermal cycling. The shear bond strength of the specimens was measured by a universal testing machine. A scanning electron microscope, three-dimensional optical surface-profiler, and stereoscopic microscope were used to image the zirconia surfaces. The data were analyzed with one-way analyses of variance and the Fisher exact test. RESULTS: Group GZ showed significantly lower shear bond strength than did the other groups. No statistically significant differences were found among groups NZ, GP, and GZP. All specimens in group GZ showed adhesive failure between the zirconia and resin cement. In groups NZ and GP, bonding failed at the interface between the resin cement and bracket base or showed complex adhesive and cohesive failure. CONCLUSIONS: Porcelain primer is the more appropriate choice for bonding a metal bracket to the surface of a full-contour glazed zirconia crown with resin cement. |
format | Online Article Text |
id | pubmed-4664906 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Korean Association of Orthodontists |
record_format | MEDLINE/PubMed |
spelling | pubmed-46649062015-12-01 Resin bonding of metal brackets to glazed zirconia with a porcelain primer Lee, Jung-Hwan Lee, Milim Kim, Kyoung-Nam Hwang, Chung-Ju Korean J Orthod Original Article OBJECTIVE: The aims of this study were to compare the shear bond strength between orthodontic metal brackets and glazed zirconia using different types of primer before applying resin cement and to determine which primer was more effective. METHODS: Zirconia blocks were milled and embedded in acrylic resin and randomly assigned to one of four groups: nonglazed zirconia with sandblasting and zirconia primer (NZ); glazed zirconia with sandblasting, etching, and zirconia primer (GZ); glazed zirconia with sandblasting, etching, and porcelain primer (GP); and glazed zirconia with sandblasting, etching, zirconia primer, and porcelain primer (GZP). A stainless steel metal bracket was bonded to each target surface with resin cement, and all specimens underwent thermal cycling. The shear bond strength of the specimens was measured by a universal testing machine. A scanning electron microscope, three-dimensional optical surface-profiler, and stereoscopic microscope were used to image the zirconia surfaces. The data were analyzed with one-way analyses of variance and the Fisher exact test. RESULTS: Group GZ showed significantly lower shear bond strength than did the other groups. No statistically significant differences were found among groups NZ, GP, and GZP. All specimens in group GZ showed adhesive failure between the zirconia and resin cement. In groups NZ and GP, bonding failed at the interface between the resin cement and bracket base or showed complex adhesive and cohesive failure. CONCLUSIONS: Porcelain primer is the more appropriate choice for bonding a metal bracket to the surface of a full-contour glazed zirconia crown with resin cement. Korean Association of Orthodontists 2015-11 2015-11-20 /pmc/articles/PMC4664906/ /pubmed/26629476 http://dx.doi.org/10.4041/kjod.2015.45.6.299 Text en © 2015 The Korean Association of Orthodontists. http://creativecommons.org/licenses/by-nc/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Article Lee, Jung-Hwan Lee, Milim Kim, Kyoung-Nam Hwang, Chung-Ju Resin bonding of metal brackets to glazed zirconia with a porcelain primer |
title | Resin bonding of metal brackets to glazed zirconia with a porcelain primer |
title_full | Resin bonding of metal brackets to glazed zirconia with a porcelain primer |
title_fullStr | Resin bonding of metal brackets to glazed zirconia with a porcelain primer |
title_full_unstemmed | Resin bonding of metal brackets to glazed zirconia with a porcelain primer |
title_short | Resin bonding of metal brackets to glazed zirconia with a porcelain primer |
title_sort | resin bonding of metal brackets to glazed zirconia with a porcelain primer |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4664906/ https://www.ncbi.nlm.nih.gov/pubmed/26629476 http://dx.doi.org/10.4041/kjod.2015.45.6.299 |
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