1 牙刷 :牙刷头部要小 ,刷毛柔软 ,弹性好 ,毛端要圆滑 ,柄结实易于把握。2 牙膏 :要经常用含氟的牙膏 ,如氟化钠、单氟磷酸钠或含有这两种成份的双氟牙膏 ,儿童还可选用含氟漱口液等。3 刷牙次数 :每天早晚两次 ,晚上刷牙要在睡前 ,要更仔细。4 刷牙时间 :每次刷牙要 2～ 3 1 toothbrush: toothbrush head to be small, soft bristles, good elasticity, hair ends to be smooth, easy to grasp the handle firm. 2 toothpaste: fluoride toothpaste often to be used, such as sodium fluoride, sodium monofluorophosphate or two fluoride toothpaste containing these two components, children can also choose fluoride mouthwash and so on. 3 brushing times: twice a day sooner or later, brush your teeth at night before going to bed, to be more careful. 4 brushing time: each brushing to 2 ~ 3