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CC BY 4.0 · Eur J Dent 2022; 16(01): 223-226
DOI: 10.1055/s-0041-1731932
Brief Report

Effect of Accelerated Aging on the Sorption and Solubility Percentages of Silicone Facial Prostheses

Adhara Smith Nóbrega
1   Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University, Araçatuba, São Paulo, Brazil
,
Clóvis Lamartinede Moraes Melo Neto
1   Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University, Araçatuba, São Paulo, Brazil
,
Daniela Micheline dos Santos
1   Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University, Araçatuba, São Paulo, Brazil
2   Oral Oncology Center, School of Dentistry, São Paulo State University, Araçatuba, São Paulo, Brazil
,
André Pinheirode Magalhães Bertoz
3   Department of Pediatric and Social Dentistry, School of Dentistry, São Paulo State University, Araçatuba, São Paulo, Brazil
,
André Luiz de MeloMoreno
1   Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University, Araçatuba, São Paulo, Brazil
,
Marcelo Coelho Goiato
1   Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University, Araçatuba, São Paulo, Brazil
2   Oral Oncology Center, School of Dentistry, São Paulo State University, Araçatuba, São Paulo, Brazil
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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.

Keywords

maxillofacial prosthesis - solubility - sorption - silicone elastomers - A-2186 - MDX4-4210 - polymers


Publication History

Article published online:
21 October 2021

© 2021. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/).

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