The Aquasonic gets its name from the sonic brushes ability to agitate the fluids that surround the teeth enabling the fluids to dislodge plaque even beyond where the bristles actually touch.
This action is referred to as fluid dynamics.
Has now added Rubberised brush heads for better, even clean.
Dentists recommend changing yur brush head every three months.

What's in the box
3 x 2 packs (6) Aquasonic Rubberised brush heads with tongue cleaner