Unique ball jointadaptable headflex zone gentle on gumsvisit your dentist regularly and replace your toothbrush every three monthsmedium toothbrushthe unique ball joint allows the brush head to adjust more precisely to the shape of your teeththe unique flex zone bends to help absorb excess brushing pressure for thorough cleaning while being gentle on gumsuse aquafresh toothpaste toothbrushes and mouthwash as part o