ArticleTheScientificWorldJournal2025
Comparative Evaluation of Tear Strength of Two Platinum-Based Maxillofacial Silicone Materials: Siloczest LSR With and Without the Addition of 2.5% Zinc Oxide (ZnO) Nanoparticles and Technovent (m511)-An In Vitro Study.
Article in TheScientificWorldJournal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: The present study aims to evaluate and compare the tear strength of an indigenous platinum-based maxillofacial silicone material (Siloczest LSR [Liquid Silicone Rubber]) with and without the incorporation of 2%-2.5% zinc oxide nanoparticles, using an imported platinum-based silicone material (Technovent M511) as the benchmark control. Methodology: Sixty-six unnicked 90° angle specimens (ASTM D624 [American Society for Material and Testing)) were fabricated and divided into three groups: Group A-Siloczest LSR without zinc oxide nanoparticles; Group B-Siloczest LSR with 2.5% zinc oxide nanoparticles; and Group C (control)-Technovent M511. Tear strength was evaluated using a Universal Testing Machine (UTM), and results were statistically analysed to compare the performance of the materials. Results: Siloczest LSR showed significantly higher tear strength (22.64 N/mm) than Technovent (10.08 N/mm, Conclusion: Siloczest LSR, an indigenous platinum-based maxillofacial silicone, exhibited higher tear strength than the imported Technovent material, supporting its potential use in clinical prosthetic applications as a cost-effective maxillofacial material. However, the addition of 2.5% zinc oxide nanoparticles did not improve tear strength and led to a slight reduction. These results highlight the need for further investigation into nanoparticle concentration and dispersion methods to optimize reinforcement without compromising the material's mechanical integrity and clinical validation.
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