Have you noticed the latest technique dentists are using now to increase income?

It happened suddenly. I went to a dentist two miles from me to fix two visible cavities. The next hour is a blur, mostly, as he rattled on about having six or eight teeth fixed on the top (the cavities are on the bottom) “for $1500 EACH” and , as I sat there not knowing what to say he left the room. Then this girl comes in (here’s where I really messed up) saying, “the dentist likes to have X-rays when his patients come in” and took $120 worth of them and I left with the teeth still decayed.
I went to another dentist thirty five minutes from here to get the cavities filled. First came the X-rays. Then the dentist, a female, came in and proceeded to tell her assistant which tooth needed what and this other lady wrote it all down in a folder and the total came to $9,500. She said, “each tooth is $1,575.” My other question is how can they charge the same amount per tooth when each tooth needs varying degrees of work? Ripoff.