A printed article including text andor depictive elements includes an insert that is supported by an elastic thread that is substantially invisible to human vision. The orthodontic device utilizes a spring and concentric sliding members to apply a biasing force to a patient’s teeth in a manner that translates the teeth without rotation or tipping either tooth to which it is attached. The first form is that a takeoff electrode is disposed near the cathode and the Wehnelt potential and the takeoff electrode potential are controlled independently.