摘要 |
An orthodontic appliance and kit adapted to provide Herbst therapy as well as arch development. The appliance includes mandibular and maxillary components to be attached to the teeth, each component having a threaded bore. For Herbst therapy, telescoping links are connected between the components with screws threadably received by the threaded bores and coupled to the links by a ball and socket joint. For arch development, expansion mechanisms are provided on the components.
|