Chromatic stability of acrylic resins of artificial eyes submitted to accelerated aging and polishing

Esthetics and durability of materials used to fabricate artificial eyes has been an important issue since artificial eyes are essential to restore esthetics and function, protect the remaining tissues and help with patients' psychological therapy. However, these materials are submitted to degra...

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Bibliographic Details
Published in:Journal of applied oral science 2010-12, Vol.18 (6), p.641-645
Main Authors: Goiato, Marcelo Coelho, Santos, Daniela Micheline dos, Souza, Josiene Firmino, Moreno, Amália, Pesqueira, Aldiéris Alves
Format: Article
Language:English
Subjects:
Acrylic Resins - chemistry
Acrylic Resins - radiation effects
Analysis of Variance
Color
Dental polishing
Dentistry
DENTISTRY, ORAL SURGERY & MEDICINE
Eye, Artificial
Materials Testing
Ocular prosthesis
Original
Prosthesis Coloring
Resins
Surface Properties
Time Factors
Ultraviolet Rays
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Summary:Esthetics and durability of materials used to fabricate artificial eyes has been an important issue since artificial eyes are essential to restore esthetics and function, protect the remaining tissues and help with patients' psychological therapy. However, these materials are submitted to degrading effects of environmental agents on the physical properties of the acrylic resin. This study assessed the color stability of acrylic resins used to fabricate sclera in three basic shades (N1, N2 and N3) when subjected to accelerated aging, mechanical and chemical polishing. Specimens of each resin were fabricated and submitted to mechanical and chemical polishing. Chromatic analysis was performed before and after accelerated aging through ultraviolet reflection spectrophotometry. All specimens revealed color alteration following polishing and accelerated aging. The resins presented statistically significant chromatic alteration (p
ISSN:1678-7757
1678-7765
1678-7765
1678-7757
DOI:10.1590/s1678-77572010000600018