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近年来,有关部门一直推广含氟牙膏,这在预防龋齿方面起到一定作用,但可能带来的负面作用正在显现:其一,口腔疾病多与细菌有关,偶尔使
In recent years, the departments concerned have been promoting fluoride-containing toothpaste, which plays a role in the prevention of dental caries. However, the possible negative effects are emerging: First, the oral diseases are mostly bacteria-related and occasionally