Periodontitis can use herbal toothpaste, which has an anti-inflammatory effect, but functional toothpaste is not recommended for a long time, because it contains the ingredients of drugs, long-term use may be harmful to the human body. Toothpaste is only a friction agent in the mouth, used to remove plaque on the surface of the teeth, use any kind of toothpaste can, mainly choose a slightly better toothbrush, the head must be small, can be brushed in the mouth to the last tooth, more flexible, the hair should be soft and hard moderate, too hard easily damage the gums, too soft and not too much power. The main thing is the patient’s brushing method. If the correct brushing method is taken and the brushing time can be maintained for more than 3 minutes, basically the majority of the plaque in the mouth can be removed.