Every Day Practices For A Much Healthier Teeth
https://www.goodreads.com/topic/show/20467691-simply-follow-these-few-basic-steps-to-clean-you-teeth-with-a-rotadent-t
Grinding the ground to powder is too fine, and small-gravel grounds are too large. I would not recommend getting your kid a tongue scraper. This helps to develop the mouth muscles that will be utilized in speech.