Elucidating the Properties of High-Performance Polymers Reinforced on Three-Dimensional Printed Sports Mouthguard

Digital advancements in sports mouthguard fabrication, particularly through three-dimensional (3D) printing, have shown promise but face challenges in maintaining structural integrity. The current use of resin, originally designed for splints and retainers, is a key factor in this issue. This study aims to enhance the strength and durability of 3D-printed mouthguards by incorporating highperformance polymers Polyetherketoneketone (PEKK) and Polyetherimide (PEI) into the commercially available resin. The new material will be evaluated against conventional and other 3D-printed mouthguards in the global market. By blending these two polymers in various ratios, the study will create new materials to be 3D printed using the NextDent® 5100 3D Printer. Mechanical testing will focus on structural integrity, fracture toughness, flexural strength, microhardness, and impact strength. Additionally, physical evaluations using Fourier Transform Infrared Spectroscopy (FTIR) and Field Emission Scanning Electron Microscopy (FESEM) will be conducted to characterize and identify materials. The goal is to develop a 3D-printed resin that is strong, durable, biocompatible, and comfortable for athletes, thereby addressing the structural integrity issues of current 3D-printed materials. This research represents a significant step forward in material science for dental and orofacial injury prevention and will involve collaboration with dental laboratories, distributors, and universities. In line with the United Nations Sustainable Development Goals, this study promotes global health and well-being by providing a better solution for sports mouthguards.