OK, today, it seems the dentist's office is getting closer to figuring out how to use their new cleaners. Growing up, didn't you know someone whose father could put a couple of fingers in his mouth and blow one of those really loud whistles to call his children home for dinner? I did, and always wished I could do that. I used to try, but never figured it out. Maybe these holes blasted by the ultrasonic cleaner could give someone that ability?
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