Intraoral orthosis comprising a first splint (10) and a second splint (20), said splints (10, 20) being connected to each other by an adjustable connecting device (30), said adjustable connecting device (30) comprising two pins (31) toothed which are arranged respectively on each side of one of said splints (10, 20), each toothed pin (31) cooperating in an adjustable manner with a respective adjustment housing (32), arranged on each side of the other of said splints (20, 10), each pin (31) comprising toothed teeth (312) adjusting to adjust the position of the splints (10, 20) with respect to each other, comprising each adjustment housing (32) comprising at least an adjustment tooth (322) adapted to cooperate with at least one respective adjustment tooth (312) of the corresponding toothed pin (31), to define a position of the first splint (10) with respect to the second splint (20) , characterized in that each patil the (31) toothed comprises locking housings (311) to block the position of the splints (10, 20) with respect to each other, said locking housings (311) being oriented transversely with respect to said teeth (312) of adjustment, and because each adjustment housing (32) comprises a locking system (35) comprising a movable locking element (35) with respect to said adjustment housing (32) between a locking position, in which the projections (351) for blocking the blocking element (35) cooperating with said locking housings (311) of said jagged pin (31), and an unlocking position, in which said locking projections (351) do not cooperate with said housings (311) lock.Órtesis intraoral que comprende una primera férula (10) y una segunda férula (20), estando conectadas entre sí dichas férulas (10, 20) mediante un dispositivo de conexión (30) ajustable, comprendiendo dicho dispositivo de conexión (30) ajustable dos patillas (31) dentadas que están dispuestas respectivamente a cada lateral de una de dichas férulas (10, 20), cooperando cada patilla (31) dentada de m
