The current toothbrush filaments are mostly artificial filaments, all thanks to the rapid development of chemical synthesis technology.
At present, the filament of toothbrushes are mainly PP polypropylene filament, PBT soft filament, nylon PA and PET composite sharpened filament.
But these seemingly “soft” hair filaments can also cause bleeding gums, dental plaque, dental stones are very stubborn.
The reason is that the toothbrush filaments are not chosen correctly. Here you will know the material of the bristles of the lower toothbrush.
PP toothbrush bristles are mostly used in hotel disposable toothbrushes or cheap toothbrushes, usually brush 1 to 2 times, the hair will fall, bend, warp.

PBT sharpened hair material has high manufacturing cost, but moderate flexibility, with high softness, high resilience, high hardness, low water absorption, etc.
The lower end of the brush filament is thick and the tip is fine, making high-end soft toothbrush.

Suitable for the more delicate Asian mouth, it is a soft brush that is more advertised in the domestic market.
Nylon filament, thick up and down, rounded at the top, strong, wear-resistant, strong cleaning power, toothbrush filament are hard, usually medium filaments and hard filaments.
However, if the use method is not correct, vigorously transverse brush, easy to cause the tooth root wedge loss, the tooth root is ground cut groove marks!
PE toothbrush bristles are a composite material between PP and nylon, similar to nylon, but the resilience is poor, usually a week or so will pour hair.