I have been wearing ceramic braces for 1 year and 2 months now.My orthodentist say it was the time of space closing for extraction site.But I didn't see any improvement or movement of my right upper premolar and left lower premolar.My ortho said my teeth were moving slowly than expected and I couldn't see any improvement for these two teeth.What was the problem in this case and what should I do? I wanna know is it because of the ceramic braces?