The present invention discloses compositions of omega polyunsaturated fatty acids for controlling and preventing dental caries resulting from oral infections. The compositions of fatty acids include omega-3 fatty acids, omega-6 fatty acids, and other fatty acids, for their synergistic bioactivity against cariogenic pathogens. The application of this composition can be used for the preparation of drugs, nutritional supplements, food and daily necessities with oral health care and therapeutic effects.
