Dr. Bass
The effectiveness of different Tooth brushing technique among the dental student in the college of dentistry the independent variable is the techinque of tooth brushing tecnique and the dependent variable the effectiveness of the tooth brushing technique
It was invented for detangling hair, and just brushing your hair.
using vaccum cleaner or using manual technique of brushing it
it was invented because it makes your teeth white and gives you good breath
Same as what it was a few centuries ago. Brushing hair
Loss of tooth structure caused by a hard toothbrush, poor brushing technique, or Bruxism ( Grinding or clenching the teeth)
Hippies found when they went for months without brushing their hair they had dreadlocks.
Carrvagio
Grand Wizard Theodore
I doubt that they invented it, but Japanese kamikaze pilots used the technique in WWII.
USC's Ralph Winge, D.D.S.
Andy Moore