Although the basic nylon bristle is used by many toothbrush manufacturers, the difference is that the Blotting Brush has a texturing process performed on the ends of the bristles which is what gives them their capillary-like action. If you look at a Blotting Brush closely you can see the texturing. The action is the drawing or pulling effect which helps remove plaque from the mouth in the blotting process, drawing it up into the brush and then allowing for its removal from the mouth, whether by sucking or rinsing. It is this capillary-like action which is the basic premise of the Blotting Technique.
Dr. Phillips’ patients described it as “the bristles with the split ends.”