Controlled abrasivity is a key advantage of PRESIDENT toothpastes. Each hygienic or dental case requires a specific toothpaste abrasivity level. Controlling abrasivity serves to precise understanding of a toothpaste's ability to meet specific objectives (daily care, gum care, whitening, etc.). The RDA scale provides a scientific basis for controlling abrasivity.
Controlled abrasivity index (RDA scale):
An important part of the PRESIDENT philosophy is the control of the stiffness of the toothbrush bristles. The stiffness of the bristles depends on their diameter, and the larger the bristles, the stiffer they are.
The relationship between the diameter and stiffness of the bristles is measured using the MIL indicator.
Bristle stiffness indicator (MIL scale):
