Brushing your teeth with salt has two benefits: inhibiting oral pathogenic bacteria and preventing oral diseases. The details are as follows: 1. Inhibit oral pathogenic bacteria: because salt water itself has the effect of inhibiting oral pathogenic bacteria. Brushing teeth with salt water can not only treat mouth ulcers and anti-inflammatory sterilization, but also brush teeth with salt water can treat bad breath as well as prevent dental caries. Therefore, brushing with salt water can play the role of anti-heat and anti-inflammatory, relieve toothache. 2. Prevent oral diseases: brushing with salt water can clean the surface of the teeth of soft dirt and food debris and prevent dental calculus. At the same time, it can inhibit the proliferation of bacteria, thus reducing inflammation, effectively preventing toothache, mouth ulcers, periodontitis, gingivitis and other oral diseases, which is beneficial to people’s oral health. Although long-term brushing can be bactericidal anti-inflammatory prevention of oral diseases, but long-term use of salt water brushing will also lead to oral flora imbalance, causing elevated blood pressure, hypertension patients are strictly prohibited the use of salt water brushing.