Mandibular advancement devices (MADs) are dental appliances designed to treat sleep apnea and snoring. They work by repositioning the lower jaw forward, which helps keep the airway open during sleep. This adjustment reduces the likelihood of airway obstruction, allowing for better airflow and improved sleep quality. MADs are typically custom-fitted by a dentist to ensure comfort and effectiveness. They are an alternative to continuous positive airway pressure (CPAP) machines, offering a more portable and less intrusive option for individuals seeking relief from sleep-related breathing issues. Regular follow-up with a healthcare provider is recommended for optimal results.