The Source™ Brush comes with Flossing (Super Soft), Soft, or Medium bristles. Its smaller head is compatible with both right- and left-handed users, depending on how the replacement head is attached.
The TOUR™ Travel Brush uses the same replacement heads as the Source, but the larger Big Brush Replacement Heads do not fit the TOUR due to its unique design.
The Big Brush™ is our newest brush with replacement heads. It has a larger head than the Source, comes in right- or left-handed versions, and features the optimal 45-degree angle recommended by the ADA.
Oct 8, 2025