Evaluation of roughness and micromorphology of epoxy paint on cobalt-chromium alloy before and after thermal cycling
It has been suggested that the epoxy paint used to coat metal substrates in industrial electrostatic painting applications could also be used to mask metal clasps in removable dental prostheses (RDP). The purpose of this study was to evaluate both the influence of thermal cycling and the in vitro ro...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Pesquisa Odontológica
2013-04-01
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| Series: | Brazilian Oral Research |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242013000200176 |
| _version_ | 1818825424653778944 |
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| author | Alessandra Cardoso da Silva Nascimento Carlos Alberto Muzilli Milton Edson Miranda Flávia Martão Flório Roberta Tarkany Basting |
| author_facet | Alessandra Cardoso da Silva Nascimento Carlos Alberto Muzilli Milton Edson Miranda Flávia Martão Flório Roberta Tarkany Basting |
| author_sort | Alessandra Cardoso da Silva Nascimento |
| collection | DOAJ |
| description | It has been suggested that the epoxy paint used to coat metal substrates in industrial electrostatic painting applications could also be used to mask metal clasps in removable dental prostheses (RDP). The purpose of this study was to evaluate both the influence of thermal cycling and the in vitro roughness of a surface after application of epoxy paint, as well as to assess the micromorphology of a cobalt-chromium (CoCr) based metal structure. Sixty test specimens were fabricated from a CoCr alloy. The specimens were separated into three groups (n = 20) according to surface treatment: Group 1 (Pol) - polished with abrasive stone and rubbers; Group 2 (Pol+Epo) - polished and coated with epoxy paint; Group 3 (Epo) - air-abraded with aluminum oxide particles and coated with epoxy paint. The surface roughness was evaluated before and after 1000 thermal cycles (5°C and 50°C). The surface micromorphology was verified by scanning electron microscopy (SEM). The two-way repeated measures ANOVA showed significant differences among surface treatments (p < 0.0001), but no difference was found before and after thermal cycling (p = 0.6638). The CoCr-based metal alloy surfaces treated with epoxy paint (Groups 2 and 3) were rougher than the surfaces that were only polished (Group 1). Thermal cycling did not influence surface roughness, or lead to chipping or detachment of the epoxy paint. |
| first_indexed | 2024-12-19T00:11:33Z |
| format | Article |
| id | doaj.art-5e3a480a32d1455e8f81a25d2b1f3933 |
| institution | Directory Open Access Journal |
| issn | 1806-8324 |
| language | English |
| last_indexed | 2024-12-19T00:11:33Z |
| publishDate | 2013-04-01 |
| publisher | Sociedade Brasileira de Pesquisa Odontológica |
| record_format | Article |
| series | Brazilian Oral Research |
| spelling | doaj.art-5e3a480a32d1455e8f81a25d2b1f39332022-12-21T20:46:01ZengSociedade Brasileira de Pesquisa OdontológicaBrazilian Oral Research1806-83242013-04-01272176182Evaluation of roughness and micromorphology of epoxy paint on cobalt-chromium alloy before and after thermal cyclingAlessandra Cardoso da Silva NascimentoCarlos Alberto MuzilliMilton Edson MirandaFlávia Martão FlórioRoberta Tarkany BastingIt has been suggested that the epoxy paint used to coat metal substrates in industrial electrostatic painting applications could also be used to mask metal clasps in removable dental prostheses (RDP). The purpose of this study was to evaluate both the influence of thermal cycling and the in vitro roughness of a surface after application of epoxy paint, as well as to assess the micromorphology of a cobalt-chromium (CoCr) based metal structure. Sixty test specimens were fabricated from a CoCr alloy. The specimens were separated into three groups (n = 20) according to surface treatment: Group 1 (Pol) - polished with abrasive stone and rubbers; Group 2 (Pol+Epo) - polished and coated with epoxy paint; Group 3 (Epo) - air-abraded with aluminum oxide particles and coated with epoxy paint. The surface roughness was evaluated before and after 1000 thermal cycles (5°C and 50°C). The surface micromorphology was verified by scanning electron microscopy (SEM). The two-way repeated measures ANOVA showed significant differences among surface treatments (p < 0.0001), but no difference was found before and after thermal cycling (p = 0.6638). The CoCr-based metal alloy surfaces treated with epoxy paint (Groups 2 and 3) were rougher than the surfaces that were only polished (Group 1). Thermal cycling did not influence surface roughness, or lead to chipping or detachment of the epoxy paint.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242013000200176Dental ClaspsPaintDenture, PartialMicroscopy, Electron, Scanning |
| spellingShingle | Alessandra Cardoso da Silva Nascimento Carlos Alberto Muzilli Milton Edson Miranda Flávia Martão Flório Roberta Tarkany Basting Evaluation of roughness and micromorphology of epoxy paint on cobalt-chromium alloy before and after thermal cycling Brazilian Oral Research Dental Clasps Paint Denture, Partial Microscopy, Electron, Scanning |
| title | Evaluation of roughness and micromorphology of epoxy paint on cobalt-chromium alloy before and after thermal cycling |
| title_full | Evaluation of roughness and micromorphology of epoxy paint on cobalt-chromium alloy before and after thermal cycling |
| title_fullStr | Evaluation of roughness and micromorphology of epoxy paint on cobalt-chromium alloy before and after thermal cycling |
| title_full_unstemmed | Evaluation of roughness and micromorphology of epoxy paint on cobalt-chromium alloy before and after thermal cycling |
| title_short | Evaluation of roughness and micromorphology of epoxy paint on cobalt-chromium alloy before and after thermal cycling |
| title_sort | evaluation of roughness and micromorphology of epoxy paint on cobalt chromium alloy before and after thermal cycling |
| topic | Dental Clasps Paint Denture, Partial Microscopy, Electron, Scanning |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242013000200176 |
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