No, they don't. I have visited three different dentists in the past year and half and all three of them identified varying number of cavities for different teeth. I wonder if the definition of cavities is so vague or if these dentists are just making stuff up.

That said, I have been told by dental hygienists at two of these dental shops (after cleaning my teeth) that my teeth look great and are in very good condition (they had to do minimal cleaning). I brush my teeth twice a day (no fail). I floss twice a day. I also brush with electric toothbrush and use small hand-held (old school) toothbrush to clean hard-to-get-to places. So I always wonder why every time I go to a new dentist, they find new cavities. :D

I preach this. One dentist in US said I had 5 cavities, went to Latin America, they couldn’t find anything. No problems at any dentist since.