Salt water gargling has certain benefits that can clean the mouth and reduce the risk of infection. Using salt water to gargle has a better cleaning effect on the mucous membrane of the mouth, which can inhibit the reproduction of some bacteria, thus reducing the risk of infection and other diseases of the oral mucous membrane. However, it should be noted that the daily oral maintenance, only need to use water to brush or gargle can be, there is no need to long-term use of salt water gargling. Although there are some benefits of using salt water gargling, it is not recommended to use salt water gargling for a long period of time. Long-term use of salt water gargling may cause some damage to the teeth. Because salt water contains sodium chloride, the degree of permeability is different from water and the environment of the mouth, so it is not recommended to use salt water gargling frequently, and daily use of water gargling can be. Salt water gargling can only play a role in cleaning, and can not replace the medication and stomatological treatment, if there are oral problems, it is recommended to consult a doctor in a timely manner.