Class IV

I saw my first class IV today and it wasn't so bad, my class II I saw in the morning was harder b/c of his tenacious calculus. My class IV has been coming to Weber for a really long time so his calculus hasn't gotten to hard but he still isn't maintaining his bone levels so I am glad I got him as my class IV. My class II on the other hand has been one of my hardest pt so far. I had to use the file on his lower anteriors because nothing was coming off with the ultrasonic or graceys.