I don't know if I would ever pull out the air powder polisher again if I had not had the opportunity to go over it again in junior clinic. Professor Costley asked me to grab all the stuff for it, powder, tips, bonnets, and such.... I had no idea where it all was. I do now though! We also had to trouble shoot a lot to get the darn things working! Doing that gives me so much more confidence to pull one out by myself and get it going. We ran into a lot of different problems and could fix most of them after a little bit of tinkering. I still don't like the thing... but I would feel more confident using one now.
As far as things learned from teaching to use the hand piece and prophy angle... I just learned that I have actually learned how to use it. ha ha. One thing that I am going to start trying is holding the paste in my other hand while I polish so that it doesn't take so long to get more paste. A lot of the juniors do that.
I didn't really have any "ah-ha" moments from fluoride varnish, except that when Costley introduced it she said that in junior clinic we place it on all surfaces of the teeth, and in senior clinic we only do it on the buccal... I was never told that. ha ha. Or was not listening when we were told that. Does everyone only place it on the buccal? Why not put it everywhere?