I just came back from a dentist appointment.
I signed a paperwork that says two inlays and three onlays. When I was under local anesthesia for deep cleaning, my dentist told me that he/she found one more cavity and asked me if he/she can take that out without explaining in detail. I simply answered 'yes'.
When I came out, I noticed that the paperwork was changed to add $700. I asked about it and he/she told me that $700 is for the cavity he/she found during the procedure.
I was under the impression that he/she was simply taking out a little bit of cavity, but he/she decided that I need an extra inlay for the cavity he/she found.
Can a dentist perform a procedure without a written paperwork and charge a client?