Effect of weathering and thickness on roughness of acrylic resin and ocular button☆
Abstract
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.
Keywords: Ocular prosthesis, Roughness, Thickness, Weathering
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☆ Source of public financial support: This investigation was supported by the Foundation for Support to Research of the State of Sao Paulo (FAPESP) – Brazil – Proc. 08/54932.
PII: S1367-0484(09)00180-5
doi:10.1016/j.clae.2009.12.008
Published by Elsevier Inc.
