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The effect of different surface treatments of demineralised enamel on microleakage under metal orthodontic brackets
BACKGROUND: The aim of this investigation was to assess the effects of different treatments of demineralised enamel on microleakage under orthodontic brackets. METHODS: Seventy-five intact premolars were randomly assigned to five groups. The teeth in groups 2 through 5 were immersed in a demineralis...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Springer
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3847846/ https://www.ncbi.nlm.nih.gov/pubmed/24325863 http://dx.doi.org/10.1186/2196-1042-14-2 |
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author | Moosavi, Horieh Ahrari, Farzaneh Mohamadipour, Hamideh |
author_facet | Moosavi, Horieh Ahrari, Farzaneh Mohamadipour, Hamideh |
author_sort | Moosavi, Horieh |
collection | PubMed |
description | BACKGROUND: The aim of this investigation was to assess the effects of different treatments of demineralised enamel on microleakage under orthodontic brackets. METHODS: Seventy-five intact premolars were randomly assigned to five groups. The teeth in groups 2 through 5 were immersed in a demineralising solution for 16 weeks. In groups 1 (control) and 2 (demineralised/control), conventional acid etching was used. In group 3, sodium hypochlorite (NaOCl) was applied on the enamel surface for 1 min after acid etching, and in group 4, Transbond Plus (3M Unitek, Monrovia, CA, USA) self-etching primer (SEP) was used. The teeth in group 5 were treated with 2% sodium fluoride (NaF) for 4 min before etching. After bracket bonding, the specimens were thermocycled, sealed with nail varnish, immersed in 0.5% basic fuchsine solution for 24 h and sectioned. Microleakage was measured under a stereomicroscope for the enamel-adhesive and adhesive-bracket interfaces of both occlusal and gingival sides. RESULTS: Demineralised teeth showed more microleakage at the enamel-adhesive interface on both occlusal and gingival sides compared to sound teeth, but the difference was not significant (P > 0.005). Treating the demineralised enamel with 5% NaOCl or Transbond Plus SEP was not effective in reducing microleakage. NaF treatment followed by acid etching of demineralised enamel resulted in significantly lower microleakage in most comparisons (P < 0.005). CONCLUSIONS: The use of 2% NaF on hypomineralised enamel before the bracket bonding procedure is an effective way to decrease microleakage. |
format | Online Article Text |
id | pubmed-3847846 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Springer |
record_format | MEDLINE/PubMed |
spelling | pubmed-38478462015-04-07 The effect of different surface treatments of demineralised enamel on microleakage under metal orthodontic brackets Moosavi, Horieh Ahrari, Farzaneh Mohamadipour, Hamideh Prog Orthod Research BACKGROUND: The aim of this investigation was to assess the effects of different treatments of demineralised enamel on microleakage under orthodontic brackets. METHODS: Seventy-five intact premolars were randomly assigned to five groups. The teeth in groups 2 through 5 were immersed in a demineralising solution for 16 weeks. In groups 1 (control) and 2 (demineralised/control), conventional acid etching was used. In group 3, sodium hypochlorite (NaOCl) was applied on the enamel surface for 1 min after acid etching, and in group 4, Transbond Plus (3M Unitek, Monrovia, CA, USA) self-etching primer (SEP) was used. The teeth in group 5 were treated with 2% sodium fluoride (NaF) for 4 min before etching. After bracket bonding, the specimens were thermocycled, sealed with nail varnish, immersed in 0.5% basic fuchsine solution for 24 h and sectioned. Microleakage was measured under a stereomicroscope for the enamel-adhesive and adhesive-bracket interfaces of both occlusal and gingival sides. RESULTS: Demineralised teeth showed more microleakage at the enamel-adhesive interface on both occlusal and gingival sides compared to sound teeth, but the difference was not significant (P > 0.005). Treating the demineralised enamel with 5% NaOCl or Transbond Plus SEP was not effective in reducing microleakage. NaF treatment followed by acid etching of demineralised enamel resulted in significantly lower microleakage in most comparisons (P < 0.005). CONCLUSIONS: The use of 2% NaF on hypomineralised enamel before the bracket bonding procedure is an effective way to decrease microleakage. Springer 2013-05-20 /pmc/articles/PMC3847846/ /pubmed/24325863 http://dx.doi.org/10.1186/2196-1042-14-2 Text en Copyright © 2013 Moosavi et al.; licensee Springer. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Moosavi, Horieh Ahrari, Farzaneh Mohamadipour, Hamideh The effect of different surface treatments of demineralised enamel on microleakage under metal orthodontic brackets |
title | The effect of different surface treatments of demineralised enamel on microleakage under metal orthodontic brackets |
title_full | The effect of different surface treatments of demineralised enamel on microleakage under metal orthodontic brackets |
title_fullStr | The effect of different surface treatments of demineralised enamel on microleakage under metal orthodontic brackets |
title_full_unstemmed | The effect of different surface treatments of demineralised enamel on microleakage under metal orthodontic brackets |
title_short | The effect of different surface treatments of demineralised enamel on microleakage under metal orthodontic brackets |
title_sort | effect of different surface treatments of demineralised enamel on microleakage under metal orthodontic brackets |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3847846/ https://www.ncbi.nlm.nih.gov/pubmed/24325863 http://dx.doi.org/10.1186/2196-1042-14-2 |
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