Maddison Ave Dental

I came a while ago and they told me I had two cavities, but I lived in another city for school so I went to a dentist there to get the cavities filled, but the dentist told me there were no cavities to be found! Then I came back and they said I definitely had cavities that needed to be removed, so just to be safe I let them do the fillings. Afterwards, I was told by the assistant that they weren't really cavities, but coffee staining on my teeth.
A couple of years later I go to them again, willing to give Maddison Ave. a second chance because that same dentist was no longer with them. I get a cleaning, and then they tell me I have four more cavities, and two of them may be from previous fillings. I feel there is something off because I take very good care of my teeth, so I go to get a second opinion, and that dentist tells me I have no cavities and it seems to be normal wear and tear for fillings.

tl;dr: Either this place is a scam or the dentists are totally inept. Do not go here!

I should note that the hygienist and receptionist were super nice, I only have a problem with their dentists.