Assertion: amino acid's effect | /r/CapableOf | increase with concentration
Facets:
value: up to a plateau
type: OTHER
Source sentences:
text: Unlike brushing, fluoride leads to proven reduction in caries incidence by approximately 25%; higher concentrations of fluoride (>1,000 ppm) in toothpaste also helps prevents tooth decay, with the effect increasing with concentration up to a plateau.