Hello --
   I've done the Invisalign treatment (2 years) and am at the
end-stage retainers. The problem that the invisalign treatment was
intended to fix -- overlapping tooth in front jaw, middle -- has worked
but the tooth does not seem to have stabilized. If I don't wear the
retainer for at least 16 hours every night, the tooth begins to move
again. My orthodontist has made dimples in the retainers and now has me
on a 6 month return checkup schedule. What should I be asking him?  I'm
afraid that this treatment has not really worked...