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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Color stability of the artificial iris button in an ocular prosthesis before and after acrylic resin polymerization

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Author(s):
Moreno, Amalia [1] ; Goiato, Marcelo Coelho [1] ; Oliveira, Kamila Freitas [1] ; Iyda, Mariana Garib [1] ; Haddad, Marcela Filie [2] ; de Carvalho Dekon, Stefan Fiuza [1] ; dos Santos, Daniela Micheline [1]
Total Authors: 7
Affiliation:
[1] UNESP Univ Estadual Paulista, Fac Dent Aracatuba, Dept Dent Mat & Prosthodont, BR-16015050 Sao Paulo - Brazil
[2] Fed Univ Dept Dent Mat & Prosthodont, Alfenas, UNIFAL, Alfenas - Brazil
Total Affiliations: 2
Document type: Journal article
Source: CONTACT LENS & ANTERIOR EYE; v. 38, n. 6, p. 414-418, DEC 2015.
Web of Science Citations: 2
Abstract

This study investigated the effects of the ocular prosthesis fabrication technique and the paint on the color stability of the artificial iris button before and after polymerization of the colorless resin. Sixty samples simulating artificial eyes were made, including 30 samples with blue- and 30 samples with sepia-colored artificial irises. Ten samples were made by each of three techniques (i.e., conventional, prefabricated cap, and inverted painting) for each color. The color of the artificial iris button was measured through reflection spectrophotometry by the CIE L{*}a{*}b{*} system before and after polymerization of the prosthesis (colorless resin). Data were evaluated by analysis of variance (ANOVA) and the Tukey honestly significant different (HSD) tests (alpha=0.05). All of the samples exhibited color changes. Samples made by the prefabricated cap technique exhibited the highest color change values for both colors (P<.05). The inverted painting technique exhibited the lowest color change values for the sepia-colored artificial irises (P<.05). Sepia-colored artificial irises exhibited lower color change values than blue-colored artificial irises for both techniques (P<.05). In conclusion, the technique used to obtain the ocular prosthesis significantly affected the stability of the artificial iris color for each color tone and the conventional technique and the painting technique inverted were considered clinically acceptable for sepia color. (C) 2015 British Contact Lens Association. Published by Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 11/03977-0 - Color stability of two techniques for obtaining the ocular prosthesis on the influence of polymerization and aging.
Grantee:Mariana Garib Iyda
Support Opportunities: Scholarships in Brazil - Scientific Initiation