There are usually two test standards, one is the top of the brush filament round rate, one is the quality of the brush filament.
First of all, let’s talk about the grinding rate, the higher the grinding rate of the PBT toothbrush filament, the less the damage to the teeth and gums.
According to the new international toothbrush standards, the round rate of flat bristle toothbrushes reaches 60%, and the round rate of special-shaped bristle toothbrushes reaches 40%.
There are some brands on the market that do a good job, and the toothbrush grinding rate can reach 90%.
The other is the quality of brush filament, in fact, many brands are similar, because the world’s largest brush filament manufacturers are only a few, most brands are looking for them to do suppliers.
Brush filament tips should be thin and soft, deep cleaning teeth, and do not damage the gums and teeth; Classicfilament PBT toothbrush filament are soft and flexible,
Too soft toothbrush filament have weak cleaning power and can not clean the tooth surface; Hard brush filament can damage the gums and cause them to recede.