Why do the
upper incisors need a lingual retainer?
Dr. Shaughnessy: Congratulation.
There is a supernumerary tooth coronal to #1.
Why do the upper incisors need a
lingual retainer?
Answer:
I was afraid tooth #8 would try to rotate (Fig.). I do not like U bonded
retainers as much as lower but I thought maybe in this case due to #8 initial
position. I have provided 2 removable retainers to fit over for insurance!
Excellent thinking. According
to the final photos, you must have done something to overcorrect the
rotation of the two centrals. Did you do it with purpose or by accident?
How did you do it, although Amy may not like it. It seems to me that there
is no practical way to overcorrect rotation.
By the way, her parents like the
result so much that they even feel that their future grandchildren will not
have crowding like them. Good copy from Amy, not bad copy from them.
Anyway, good result and you will get more cases if you can practice
forever. I am afraid that you should be able to, at least having gut/will
to do so.
Amy can floss with her retainer...
Return to Professionals
Xin Wei, DDS, PhD, MS 1st edition 08/01/2014, last revision
08/02/2014
