Over charged and claimed work not needed.

Over charged and claimed work not needed.
He requires payment of your crown at the time. He said I needed a build up and something else- I went to 2 other dentists and both said NO that is if you grind. Staff was nasty to me. I bought 1 whitening and got the bag home and there was 1 missing and 2 boxes of the stuff- I never even use it! cost almost $300 bucks! FRAUD!