A method includes obtaining an electronic model image representing teeth
of a patient; determining a desired bracket arrangement for one or more
brackets on the teeth; designing an electronic model image of an
alignment device based in part on the desired bracket arrangement; and
fabricating the alignment device based on the electronic model image of
the alignment device. The desired bracket arrangement includes a surface
location, a tip orientation, and a torque orientation of each bracket.
The alignment device defines at least one slot through which a bracket
can be placed at a surface location and an orientation indicator to
indicate a desired tip orientation and a desired torque orientation of
each bracket.