ButlerGum Microtip Soft Regular Toothbrush with micro-feathering of inside bristle rows increases number of bristle tips by 70% to gently gently clean over a broader surface. The interdental trim is designed to align with the tooth profile to clean in between teeth and hard to reach areas. The Dome Trim design (raised center row design) is clinically proven to remove bacterial plaque below the gumline and reduce early gum disease.