Experimental Study On The Effect Of The Reactive Oxygen Species Metabolism On The Streptococcus Mutans' Role In Causing Dental Caries

Dental caries is the most common disease in oral, and Streptococcus mutans are the primary bacteria in causing caries. The Streptococcus mutans' survival and their effect on causing carious is depended on dental plaque. Previous studies had shown that the occurrence and expansion of dental caries is caused by electrochemical corrosiveness. The metabolism of dental plaque can lower the redox potential (Eh) of dental plaque to negative potential, which can form a primary cell with the normal surface of the same tooth. This kind of primary cell can cause electrochemical corrosiveness. My colleagues and I have proved through our experiments that reactive oxygen species has close relationship with the dental plaque's Eh. the higher reactive oxygen species level is , the lower voltage of the Eh is. The important feature of Streptococcus mutans' biochemical metabolism is the reactive oxygen species metabolism. But the effect of reactive oxygen species metabolism on the Streptococcus mutans' role in causing caries is still not clear. In this experiments, not only we observed the effect of reactive oxygen species on the Streptococcus mutans'...