Absolutely not! Over time a lot of people have formed the belief that unless they scrub aggressively at their teeth when brushing they aren't cleaning their teeth properly. This is simply WRONG! Aggressive brushing habits damage your gums. That is why we installed our particularly soft charcoal bristles onto the brush. Your gums are safe and healthy with BURST! If you still push down a little harder when you brush then drop the toothbrush into our ‘sensitive’ mode (31,000 sonic vibrations per minute) and you are good to go.