Dome-shaped bristles. The unique dome-shaped bristles by Butler are gentle on the gums, with tips that fit securely into the gum line and effectively remove plaque. Effectiveness: Plaque removal. Promotes gum health. Features: Easy-to-hold straight handle with a pen grip. Available in two head sizes. Dome-shaped cut: Our proprietary dome-shaped cut is effective for plaque removal. The bristle tips do not clump together, providing a flexible fit against the gums and gum line. Stimulator tip included: A tip that applies pressure to the gum papilla and helps restore healthy gums with repeated contact. Rolling method: A brushing technique where the bristles are pressed against the gums while rotating the toothbrush to apply pressure. This method is effective for massaging the gums. 3-row bristles: A toothbrush with 3 rows of bristles that enhances elasticity compared to the 2-row version. It provides significant massage effects for the gums and improves care during the prevention and treatment of gingivitis. 3 rows with 19 tufts: Slightly firmer and more elastic than #310. Use as the next step after using #310. Usage Instructions: (1) Press the side of the bristles against