A recent study focused on mouthguards used by under-12 Australian rules football players revealed concerning levels of bacterial contamination. Researchers identified 17 potentially harmful bacteria types on the mouthguards and their storage cases, some linked to gum disease, tooth decay, and respiratory infections. The study highlighted that common cleaning methods, such as rinsing with water or using mouthwash, only removed 60-70% of bacteria. In contrast, a thorough cleaning with a toothbrush and toothpaste could eliminate up to 98% of bacteria. The findings stress the importance of proper mouthguard hygiene, including rinsing after use, thorough cleaning at home, and regular inspections for wear and tear. Coaches and parents are encouraged to instill good hygiene habits to ensure the safety and longevity of mouthguards.