The invention relates to a device for correcting jaw and tooth malpositioning, with a jacket tube 1 at whose jacket tube end E1 a first securing element 2 is provided, a tube 4 which is telescopically displaceable inside the jacket tube 1 and in which a rod 6 is guided in a telescopically displaceable manner, said rod 6 having a second securing element 7 provided at the first rod end E4. To increase the application possibilities of such a device, the invention provides that a spring 5 received in the jacket tube 1 be supported with its first spring end F1 in proximity to the jacket tube end E1 and with its second spring end F2 at the opposite first tube end E2.