Oral appliances are recommended for children who are diagnosed with obstructive sleep apnea and snoring. OSA is a condition that affects children who have enlarged tonsils or adenoids, obesity, or craniofacial abnormalities. The condition causes interruptions in breathing during sleep, leading to symptoms such as snoring, gasping for air, and restless sleep. An oral appliance is recommended as a first-line treatment for mild to moderate OSA in children.