Kusanda kushicilelwa imiphumela yocwaningo lokuqala olwaxhaswa uhulumeni wase-US nge-fluoride ne-IQ. Ithimba labaphenyi lithole ubudlelwane obubalulekile phakathi kokuchayeka kwe-fluoride kwabesifazane ngesikhathi sokukhulelwa nokwehliswa kwe-IQ ezinganeni zabo, kubika iFluoride Action Network.
Ucwaningo lukhishwe ku Impilo Yemvelo ngososayensi abavela e-University of Toronto, University of Michigan, Harvard, McGill, kanye ne-ejensi yezempilo yomphakathi kazwelonke eMexico. Ixhaswe yiNational Institute of Environmental Health Sciences, ngemali engaphezu kwezigidi ezintathu zamaRandi.
