Yufang zhuya, ertong shiwu zhong yao zengjia caishu, shuiguo he danbaizhi duo de dongxi, peiyang meitian zaowan shuaya de hao xiguan, zhe ci shi youxiao de banfa.
The full title: To prevent tooth decay, children should add vegetables, fruits and protein-rich foods to their diet, and develop a good habit of brushing their teeth every morning and evening. This is an effective way.