Do not know if you have ever lived in an ordinary hotel. When using disposable toothbrushes provided by the hotel, the condition of brushing your teeth is often uncomfortable. You may even experience gum bleeding. There is not such a bad experience at home. This is why? There are many users here are not clear concept is the toothbrush head scrub. Toothbrush bristles in the manufacturing process for direct contact with the gums one end of the tooth round to prevent a certain Hardness of the bristles caused by cutting the acute angle of injury or gingiva gum.Chinese national standards clearly stipulate that toothbrush bristles must be rounding, toothbrush rounding rate of 60% before they are qualified.
Comparison of qualified and unqualified brushes rounding effect
Most hotels offer one-time toothbrushes from the cost-saving point of view, the bristles in the rounding rate is usually worse, so the comfort when brushing than the commonly used to poor, and even easy to hurt the gums caused by scratching the gums Bleeding.
