Investigation of the effects of different nanoparticle additionals on the mechanical properties of silicone elastomer used in maxillofacial prosthesis

Year 2022, Volume: 5 Issue: 6, 1654 - 1660, 25.10.2022

Gamze Karaman Eyyüp Altıntaş

https://doi.org/10.32322/jhsm.1173321

Abstract

Objective: The aim of this study is to evaluate the change in the mechanical properties of silicone elastomer used in the production of maxillofacial prostheses with the addition of 3 different nanoparticles (TiO2-SiO2-ZnO).
Material and Method: TiO2-SiO2-ZnO nanoparticles were added to the A part of the M511 Platinum (Technovent Ltd., England) silicone elastomer at a rate of 2% by weight. Test specimens were produced in sizes by ASTM D412 standards for tensile strength and percent elongation, ASTM D624 for tear strength, and ASTM D2240-68 for hardness testing. For each mechanical test, 4 groups were formed together with the control group and 3 other groups to which nanoparticles were added, and a total of 132 samples were produced, 11 samples for each group (n=11), (N=132). The data of tensile strength, elongation percentage, and tear strength tests were analyzed by Shapiro Wilk's and/or Kolmogorov Smirnov/Mann Whitney U, Kruskal Wallis-H tests; for the hardness test, the values ​​in each group showed a normal distribution within themselves, hardness test was analyzed with Oneway ANOVA/Tukey HSD tests.
Results: The addition of TiO2 and SiO2 to the silicone elastomer significantly increased the tensile strength compared to the other groups (p<0.05), the addition of TiO2 increased the elongation percentage significantly compared to the other groups (p<0.05), all particle additions significantly increased the tear strength (p<0.05), SiO2 addition significantly increased the hardness compared to the other groups.
Conclusion: The addition of TiO2-SiO2-ZnO nanoparticles to silicone elastomer may be an effective option to improve the mechanical properties of maxillofacial prostheses.

Keywords

Maxillofacial prostheses, nanoparticles, silicone elastomer

Project Number

DHF.20.04

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