Hang on....We took my son to a clinic last year for his 6 month check up and were informed that he had 5 cavities, which shocked me, too. He had previously gone to a private dentist, but we no longer have insurance, so I took him to the clinic for free. I decided that I had to have a second opinion because 5 cavities out of nowhere seemed a bit...off to me. Fast forward to a week later and the private dentist's opinion. 2 cavities, both very small and not 5. When I asked why we were told that DS had 5 large cavities at the clinic, he explained that some of the newer technologies that are being used literally look for cavities, or empty pockets in the teeth, which is, of course, different from decay. Most likely, what was found by the clinic were the cavities in the teeth, not decay. I would urge you to go to another 'old-school' dentist that actually does the manual exam and takes the time to probe with the little metal hook into all of the teeth. It saved us $$$$$$ and DS having to get his "cavities" filled.