I'm not sure how it works in other countries, but in the US, dentists generally need to provide xray/imaging of the mouth to back up whatever diagnosis/procedur

I'm not sure how it works in other countries, but in the US, dentists generally need to provide xray/imaging of the mouth to back up whatever diagnosis/procedures they recommend, or dental insurance will reject it. It's only when a patient is paying fully out of pocket when a dentist would perhaps have an easier time getting a way with over-diagnosing. Even then, they can still get in trouble with the ADA since that treads closely with medical fraud. As is the case in many parts of the healthcare industry in the US (and many other countries), for practitioners who don't care as much about the ethics of it, they'll tread as closely as they can without crossing over into outright fraud.