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  Indian J Med Microbiol
 

Figure 7: Changes in ORP of saliva before and after washing the oral cavity with hydrogen-water for the aged persons. Note: (A) 66-years old, female, normal health conditions, (B) 100-years old, female, normal health conditions. Hydrogen-water of 50 mL, at 20°C [(A) DH, 825 μg/L; ORP, – 392 mV; (B) DH, 825 μg/L; ORP, –395 mV] was contained and gently held without gurgle in the mouth for a time as short as 1 minute, and then rinsed with mineral water (hardness, 83 mg/L; ORP, +242 mV). DH: Dissolved hydrogen concentration; ORP: oxidation-reduction potential.

Figure 7: Changes in ORP of saliva before and after washing the oral cavity with hydrogen-water for the aged persons.
Note: (A) 66-years old, female, normal health conditions, (B) 100-years old, female, normal health conditions. Hydrogen-water of 50 mL, at 20°C [(A) DH, 825 μg/L; ORP, – 392 mV; (B) DH, 825 μg/L; ORP, –395 mV] was contained and gently held without gurgle in the mouth for a time as short as 1 minute, and then rinsed with mineral water (hardness, 83 mg/L; ORP, +242 mV). DH: Dissolved hydrogen concentration; ORP: oxidation-reduction potential.