Magic Mouth is a game designed to improve dental hygiene in children from low socioeconomic backgrounds. It uses a toothbrush attachment with sensors that syncs to a mobile app where players brush virtual teeth to defeat monster bacteria. By directly linking physical brushing motions to in-game outcomes, it teaches proper technique while motivating children through gameplay. The game will be provided to dental clinics serving low-income areas to ensure accessibility. Recordings of gameplay can also track patients' improving habits over time to benefit their dental care. Magic Mouth uniquely embodies brushing motions within the virtual world to create a meaningful link between real and simulated actions.