Nóbrega AS, Neto CLMM, Dos Santos DM, Bertoz APM, de MeloMoreno AL, Goiato MC. Effect of Accelerated Aging on the Sorption and Solubility Percentages of Silicone Facial Prostheses.
Eur J Dent 2021;
16:223-226. [PMID:
34674194 PMCID:
PMC8890909 DOI:
10.1055/s-0041-1731932]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Objective
This study aimed to evaluate the effect of accelerated aging on the sorption and solubility percentages of the MDX4-4210 and A-2186 silicones.
Materials and Methods
Two silicones (A-2186 and MDX4-4210) and three intrinsic pigments (bronze, black, and pink) were used in this study. Thus, six groups were created (
n
= 10): Group 1 = bronze MDX4-4210; Group 2 = black MDX4-4210; Group 3 = pink MDX4-4210; Group 4 = bronze A-2186; Group 5 = black A-2186; and Group 6 = pink A-2186. The dimensions of all samples were the same (45-mm diameter (ø) × 1-mm thickness). The samples were aged for a total of 1,008 hours. In this period of 1,008 hours of accelerated aging, the sorption and solubility percentages of each sample were calculated at three time points (252, 504, and 1,008 hours).
Statistical Analysis
Three-way analysis of variance (ANOVA) and the Tukey test were performed (α = 0.05).
Result
Accelerated aging can significantly increase the sorption and solubility percentages of the MDX4-4210 and A-2186 silicones.
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