The upper 6mm of the bristle is tapered to a rounded 0.01mm end. Ordinary bristles have less than 0.5mm tapered to 0.02mm. Benefit: Cleans 2.8mm into the sulcus, along the gingival margin and interproximally to remove plaque and other bacteria.
This is the absolute best toothbrush I have ever used! The bristles are super soft and feel like a massage for your gums. As a dental hygiene student, I try many products, but this is by far my favorite. The design is also excellent because it forces the user to use the proper 45 degree brushing angle and cleans under the gums deeper than any other toothbrush. I recommend it to all of my patients.