Review (1/5): Not as advertised
Upon receipt; followed all instructions; proceeded to use.
This thing does NOTHING to remove plaque, calculous, stains.
Was extremely disappointed-- have not been in for cleanings during Covid, was hoping to remove some of the damage done-- but did not think it'd do all (dentist is best for a deep cleaning)-- unfortunately-- this thing does absolutely NOTHING but vibrate. Buyer Beware!!!