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

Autor(es)

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]

Afiliação do(s) autor(es)

^[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

• Tipo de documento: Artigo Científico
• Fonte: CONTACT LENS & ANTERIOR EYE; v. 38, n. 6, p. 414-418, DEC 2015.
• Citações Web of Science: 2

Resumo

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)

• Processo FAPESP: 11/03977-0 - Estabilidade cromática de duas técnicas para obtenção de prótese ocular sobre a influência da polimerização e do envelhecimento.
• Beneficiário: Mariana Garib Iyda
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica