Whether it is electric toothbrush or ordinary toothbrush, the brush head is the most important key to cleaning oral tools.According to the Chinese national standard, the ordinary toothbrush head consists of three different specifications of bristles, middle hair and soft hair Toothbrush GB diameter and bending force, etc.), do not underestimate the toothbrush small and small bristles, its diameter, length, quantity, flexibility, etc. are strictly regulated.Electric toothbrush due to the high frequency of vibration, vibration frequency in a short time, The use of high hardness of the bristles easily hurt the gums and even the enamel, so the electric toothbrush is usually used for hair brush head.Some children's electric toothbrush or even use ultra-soft bristles to protect tender gums.
The bristles are usually made of nylon. The nylon filaments invented by DuPont have the characteristics of high elasticity, weak water absorption (no water absorption, not easy to breed bacteria) and can clean teeth and massage gums.
Use the brush head is too long to easily stay bacteria, it is recommended to replace the toothbrush head every three months.
For electric toothbrushes, please remember, you can not brush your toothbrush is definitely not a good toothbrush!
