Brushing with salt water has a good cleaning effect, but you need to pay attention to the concentration should not be too high. Salt water does not have a therapeutic effect, if oral diseases should be treated in time. Salt water has a certain cleaning effect, brushing teeth with salt water can play a role in cleaning the mouth, prevent oral inflammation. However, it should be noted that the concentration of salt water should not be too high, with saline (concentration of 0.9%) is appropriate, otherwise it is easy to stimulate the oral mucosa, causing pain and so on. In addition, the normal concentration of salt water does not have additional functions such as sterilization. Therefore, if there are oral diseases such as dental caries, gingivitis, etc., you should go to the hospital in time for appropriate treatment, and you can’t just brush your teeth with salt water.