Effect of weathering and thickness on the opacity of acrylic resin and ocular button for artificial eyes.
J Craniofac Surg
; 21(1): 64-7, 2010 Jan.
Article
em En
| MEDLINE
| ID: mdl-20061974
The aim of this study was to evaluate the opacity of the polymethylmethacrylate for ocular prosthesis using an ocular button, a colorless resin for the ocular prostheses, and 4 brands of acrylic colorless resin in the function of weathering (0, 504, or 1008 h) and thickness (1 and 3.5 mm). One hundred twenty specimens were confectioned (made) and allocated into 12 groups (n = 10). Opacity analysis was carried out with a spectrophotometer of visible ultraviolet reflection before and after weathering by 504 and 1008 hours. Data for the opacity were expressed in DeltaE. Data were then analyzed statistically by analysis of variance and the Tukey test (P < 0.01). The data demonstrated statistically significant differences; manufactured ocular button (DeltaE = 47.4) and the resin Vipi Cril (DeltaE = 38.11) presented greater and minor values of opacity, respectively. The weathering showed statistical difference among times (0 h, DeltaE = 36.32; 504 h, DeltaE = 39.98; and 1008 h, DeltaE = 43.9). Ocular button and evaluated resins presented greater values of opacity when presented in 3.5 mm in thickness. The values of opacity increased with the progression of the time of weathering, independent of the evaluated material and the thickness.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Resinas Acrílicas
/
Olho Artificial
Limite:
Humans
Idioma:
En
Revista:
J Craniofac Surg
Assunto da revista:
ODONTOLOGIA
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Estados Unidos