Effect of weathering and thickness on roughness of acrylic resin and ocular button

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Fernandes, Aline Úrsula Rocha
Goiato, Marcelo Coelho [UNESP]
Santos, Daniela Micheline dos [UNESP]

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Purpose: The aim of this study was to evaluate the roughness of colorless ocular button and four brands of colorless acrylic resins designed to fabricate ocular prosthesis as a function of weathering (1008 h) and different thickness (1 and 3.5 mm). Materials and methods: One-hundred-and-twenty specimens were fabricated and distributed in 12 groups. The analysis was carried out by means of digital roughness meter. Results: Data were analyzed statistically by ANOVA and Tukey test at 1% significance. The results showed that there was no statistically significant difference after the weathering period. Both the Vipi Cril acrylic resin with 3.5 mm in thickness and ocular button with 1 mm in thickness presented the lowest roughness values (0.12. Ra). Conclusion: The roughness of the acrylic resins and the ocular button was not affect by the weathering of 1008 h. However, the thickness of the specimens proved to have a major influence on roughness property. © 2010.



Ocular prosthesis, Roughness, Thickness, Weathering, acrylic acid resin, ethylene glycol dimethacrylate, methacrylic acid, methacrylic acid methyl ester, controlled study, materials testing, polymerization, priority journal, prosthesis material, surface property, thickness, visual prosthesis, Acrylic Resins, Biocompatible Materials, Contact Lenses, Equipment Design, Equipment Failure Analysis, Hardness, Materials Testing, Surface Properties

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Contact Lens and Anterior Eye, v. 33, n. 3, p. 124-127, 2010.