A few months ago my gf went in for a 6 month cleaning (to her regular dentist office of several years) and they told he she had 4 cavities, after having none 6

A few months ago my gf went in for a 6 month cleaning (to her regular dentist office of several years) and they told he she had 4 cavities, after having none 6 months prior. She got a second opinion and the diagnosis was zero cavities. She called the original office to see what their angle was and they said something to the effect of "ok, no problem. See you in 6 months." They were so used to getting away with fraud (or worse), they didn't even blink.