Shield Expert Care Sensation Toothbrush has the unique filament profile which makes it the best choice for sensitive teeth and gums. The soft bristles with smooth round ends help clean the toughest stains. Its multi-level filaments remove food particles and plaque from between the teeth. The curved shaped head provides deeper and easy access to clean all areas. Its ergonomic unique non-slip handle design helps to hold the brush more comfortably and clean effectively. Important: Dentists recommend replacing your toothbrush after every 3 months.