Year: 2025
Type: article
Abstract: BACKGROUND/AIM: This study tests materials by additive manufacturing methods that will demonstrate impact resistance and structural stability comparable to conventional EVA. MATERIAL AND METHODS: Researchers tested ethylene-vinyl acetate copolymers, thermoplastic polyurethane via fused deposition modeling, and flexible photopolymer resins from liquid crystal display-based three-dimensional printing. Analyses included tensile strength, hardness, and impact resistance. RESULTS: Thermoplastic Polyurethane via fused deposition modeling showed the best combination of elasticity, energy dissipation, and durability. Ethylene-vinyl acetate exhibited lower resilience, and the resins failed prematurely. Increased thickness and structural reinforcement improved protection. CONCLUSIONS: The material manufacturing method and design significantly influence a mouthguard's effectiveness. Thermoplastic Polyurethane made with additive manufacturing, especially with reinforced designs, offers superior resilience for high-impact sports, providing a path for customizable, effective, and accessible preventive dentistry.
Source: Dental Traumatology
DOI: 10.1111/edt.70042
Institution: Universidade Federal de Ouro Preto
Language: English
Subfield: Automotive Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W4417288973