I am wondering if there are clear criteria for choosing a dental clinic that does not overtreat.

It is time for a dental check-up, so I am looking into nearby clinics. However, I have heard that diagnostic results and estimates vary widely from clinic to clinic, so I am hesitant to visit one right away. I am wondering if there are any essential criteria or tips I should check to choose an ethical clinic that does not engage in overtreatment. I would appreciate it if community members could share their know-how on selecting a good dental clinic.