Traditional toothbrushes generally have straight handles, which are easier to use. The curved handle can penetrate into the mouth where it is difficult to brush. The elastic handle is said to prevent damage to the gums caused by the toothbrush pressing too hard against the gums. Non-slip handle to prevent the toothbrush from slipping off when brushing. In fact, none of the brush handle designs are specifically designed to clean teeth. You can choose as you like. After each brushing, the toothbrush must be cleaned with clean water and dried, and the brush head should be placed in a ventilated and dry place. The toothbrush has been used for a long time, and the bristles accumulate bacteria, which is not good for oral health. Therefore, the bristles must be replaced, and the toothbrush should be replaced at least every 3 months.