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提起刷牙和洗澡,一些小朋友也许就要皱眉头。为什么要刷牙,而且每次饭后要刷牙?太麻烦了。不刷牙,就会生虫牙。生了虫牙常常闹牙痛,你是不是高兴呢? 饭后刷牙可以防止积牙斑。这是因为吃过食物后,食物的残渣就会黏附在牙齿上,很快会形成一层黏糊糊的东西——牙斑。牙斑是细菌的乐园,细菌在牙斑里大吃大喝,繁殖得可快了,结果牙斑就发酵,变成酸性物质。这酸性的物质像一个会使魔法的小妖虫,它先把你牙齿表面的珐琅质(保护层)腐蚀掉,再在你的牙齿上“钻”一个洞。于是,你就得虫牙(龋齿)了。得了虫牙,你就会常常闹牙痛,这种滋味可不好受,你一定听奶奶说过“牙痛不是病,痛起来就要命”这句话吧?
Lift brushing and bathing, some children may have to frown. Why brush your teeth, and brush your teeth after each meal? Too much trouble. Do not brush your teeth, it will insects teeth. Born Testicles often troubled toothache, you are not happy? After brushing your teeth to prevent product plaque. This is because after eating food, food residue will stick to the teeth, and soon it will form a sticky thing - plaque. Plaque is a paradise for bacteria, bacteria eat and drink in the plaque, breeding can be faster, resulting in plaque fermentation, into acidic substances. This acidic substance is like a magic little demon bug that first erodes the enamel (protective layer) on the surface of your teeth and “drills” a hole in your teeth. So, you get worm teeth (dental caries). Got worm teeth, you will often trouble toothache, this taste is not uncomfortable, you must listen to my grandmother said “toothache is not a disease, it hurt to death” this sentence, right?