1 · Brush properly / 正确刷牙
Brush twice a day with fluoride toothpaste and cover all tooth surfaces, including the gumline and back teeth.
每天用含氟牙膏刷两次牙，尽量刷到牙齿各个面，包括牙龈边缘和后牙。
2 · Watch sweet drinks / 留意甜饮
What matters is not only sugar amount but also how often teeth are exposed during the day. Water stays the safest everyday default.
关键不只是糖分多少，还包括牙齿在一天里被反复暴露了多少次。白水仍然是最稳妥的日常默认选择。
3 · Act earlier on warning signs / 对警示信号更早行动
Pain, swelling, repeated bleeding, lasting sensitivity, or dental injury should lead to earlier follow-up, not endless waiting.
如果出现疼痛、肿胀、反复出血、持续敏感或牙齿外伤，应该更早跟进，而不是一直拖延。
Everyday checklist / 日常检查清单
Morning and night / 早晚固定Keep brushing predictable so it is easier to continue. 先把刷牙流程固定下来，更容易坚持。
Back teeth and gumline / 后牙和牙龈边缘These areas are easy to rush. Do not let them become the missed zone. 这些部位最容易被匆忙带过，不要让它们变成遗漏区。
Drink default / 默认饮料Water should be the usual option at home and through the school day. 家里和上学时段的默认饮料都尽量以白水为主。
Tell an adult early / 尽早告诉大人Students should not keep guessing alone when symptoms repeat or worsen. 当症状反复或加重时，学生不应一直自己猜测。
Safety and sources / 安全与来源
Educational only / 仅作教育用途This guide provides general oral health information and does not replace professional dental or medical advice. 这页指南提供的是一般性口腔健康教育信息，不能替代专业牙科或医疗建议。
Sources used / 使用的公开来源NHS oral hygiene guidance, Better Health Channel Victoria on fluoride, Healthdirect Australia on toothache and swelling, and CDC guidance on sugar-sweetened drinks. 参考了 NHS、维州 Better Health Channel、澳洲 Healthdirect 和 CDC 的公开指导。
Related pages / 相关页面Use the main guide for the full homepage and the About page for background, sources, and updates. 想看完整站点请回到主指南；想看背景、来源和更新信息，请看 About 页面。