Document Detail

Evaluation of roughness and micromorphology of epoxy paint on cobalt-chromium alloy before and after thermal cycling.
MedLine Citation:
PMID:  23538429     Owner:  NLM     Status:  In-Data-Review    
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.
Alessandra Cardoso da Silva Nascimento; Carlos Alberto Muzilli; Milton Edson Miranda; Flávia Martão Flório; Roberta Tarkany Basting
Related Documents :
22975399 - Embossing of organic thin films using a surfactant assisted lift-off technique.
24127349 - Facile iron-mediated dispersant-free suspension polymerization of methyl methacrylate v...
25492209 - The biocidal effect of a novel synthesized gemini surfactant on environmental sulfidoge...
1591659 - Morphology and water and lipid contents of stifle menisci of growing swine.
22057539 - Photoimmobilization of saccharides.
15621689 - Nanoparticle surface charges alter blood-brain barrier integrity and permeability.
17119649 - Size effects of gold nanaoparticles on plasmon-induced photocurrents of gold-tio2 nanoc...
17971989 - Water solubility, antioxidant activity and cytochrome c binding of four families of exo...
11755989 - Fluidized bed adsorption of cephalosporin c.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Brazilian oral research     Volume:  27     ISSN:  1807-3107     ISO Abbreviation:  Braz Oral Res     Publication Date:  2013 Apr 
Date Detail:
Created Date:  2013-03-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101307187     Medline TA:  Braz Oral Res     Country:  Brazil    
Other Details:
Languages:  eng     Pagination:  176-82     Citation Subset:  D; IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Child abuse: validation of a questionnaire translated into Brazilian Portuguese.
Next Document:  Is there justification for prophylactic extraction of third molars? A systematic review.