XNUMX Lub Hauv Paus Zoo Tshaj Plaws Yuav Tawm Qhov Dej fluoridation
Muaj ntau yam laj thawj los tawm tsam dej fluoridation, nrog rau kev txhawj xeeb txog kev nyab xeeb thiab kev pheej hmoo ntawm kev noj qab haus huv. Yog vim li cas #1 tiv thaiv dej Fluoridation: Fluoridation yog ua txhaum ntawm tus neeg txoj cai kom paub kev tso cai rau tshuaj. Hauv cov dej hauv zej zog, fluoride tau ntxiv rau cov dej ntawm txhua tus, txawm tias [...]