Objective:To screen the Lactobacillus salivarius strains with probiotic potential from oral cavity of healthy volunteers,and to investigate its probiotic properties against oral diseases.Methods:Fifty healthy volunteers without oral disease were selected and their unstimulated salivas were collected for the selective bacteria culture.The Gram staining and the 16 sr DNA sequencing technique were used to identify the Lactobacillus salivarius.To detect the antibacterial ability of the purified Lactobacillus sa...