Water flosser adopts a retractable water tank design.
There is a dental junction with the gums, and the grooves around the teeth but are not attached to the teeth, which is the most important junction that leads to the roots of the tooth, but the most powerful stain is the easiest. Places that cause teeth and gums disease. Gubgou and teeth are two least easy to clean, and have research points out "up to 40% of the tooth surface cannot be cleaned with toothbrush".