How do I handle a bait and switch confrontation with a dental office?

Question Details:

I was a victim in a bait and switch operation. I was told my exam, X-rays, and a cleaning were going to be charged under a new customers $59 package special. I ended up having to pay 1000% more, at the total of $665 for just a deeper cleaning. There was no place where anyone informed me properly of how much more the charge would be; they said they felt obligated to continue with the deeper cleaning. They felt they made a mistake by not thoroughly telling me the price before doing the service so they only took $100 off of my bill. I still find this unfair, unreasonable and a scam. Important Notice