Individualized lingual protector for patients with self-injuries by bite, characterized in that it consists of two components coupled together: a rigid internal splint and an external cover. The rigid internal splint is made of thermoformable vinyl, 2 mm thick, whose edge is placed on the teeth of the lower arch. The outer shell is soft silicone thermo-mouldable 2 mm thick. The internal splint and outer cover are joined by silk threads. (Machine-translation by Google Translate, not legally binding)Protector lingual individualizado para pacientes con autolesiones por mordedura, caracterizado porque consiste en dos componentes acoplados entre sí: una férula interna rígida y una cubierta externa. La férula interna rígida es de vinilo termo-modelable de 2 mm de espesor, cuyo borde se sitúa en los dientes de la arcada inferior. La cubierta externa es de silicona blanda termo-modelable de 2 mm de espesor. La férula interna y la cubierta externa se unen mediante hilos de seda.