高考问答创业大赛ppt模板:帮忙翻译一下这篇文章~！（翻成英文）
来源：百度文库 编辑：高考问答 时间：2024/04/27 16:10:06
刷牙，可以除去口腔内的致病微生物，经过一次刷牙，微生物可以减少60%以上，同时刷牙还可以按摩牙龈，减少牙病的发生。
牙刷的选择
应选用保健牙刷，刷毛柔软，刷面平坦刷头不大，刷毛尖端磨圆，既能有效地消除牙菌斑，而又不损伤牙齿和牙龈。
牙刷的保养和更换：每次刷牙完毕，应将牙刷洗净将刷头朝上放入杯内，置于通风干燥处。每1-3个月应换一把新牙刷，如发现刷毛散开变曲，倾斜应及时更换。
正确的刷牙方法
1、正确的刷牙角度和动作
牙刷毛应与牙齿表面呈45度角，斜放并轻压在牙齿颈部与牙龈交界处。顺着牙缝竖刷，并轻轻旋转刷毛。刷牙时用力不宜过大。刷上牙时从上往下刷，刷下牙时从下往上刷。
2、刷牙齿的内外侧
不但要刷外侧，还要注意要刷上下牙齿的内侧，刷前牙内侧时，要把牙刷竖起来，利用动力刷毛清洁牙齿。
3、刷牙齿的咬合面
用适中的力度前后方向刷牙齿的咬合面，利用动力刷毛深入智齿部分，清洁难刷部位。
慢刷牙有利于健康
日本牙科杂志指出，刷牙动作放慢，有利于保持牙齿健康。动作放慢、时间稍长，可使牙齿及口腔环境彻底清洁，不仅消灭了齿槽炎症，更能将病毒及细菌杀灭。
何时刷牙
1、幼儿愈早愈好
从小就应该让宝宝有保护牙齿、预防口腔疾病的认识。一般来说，从20个月开始就可以漱口，3岁左右应开始刷牙。
2、早晚刷牙有助健康
3、饭后刷牙的最佳时间：多数认为每次进食后3分钟内刷牙最佳。
但也有人提出，食用酸性食物，附着在牙齿上和牙齿保护层中的钙及磷分子发生反应，马上将它们分离，牙齿会变得软而脆弱。这时候刷牙会把部分釉质刮掉，有害牙齿的健康。因此建议，饭后半小时再刷牙。
作者认为饭后尽早刷牙有利于保护牙齿，因为时间太长牙菌斑不易被清除。
As we know，it is imprtant for health to keep teeth better.The toothache caused the indigestion,which result in the sickness of whole body. To brush teech are what one of aspect of keeping them,The mouth is a place which are full of much germ. And the germ makes food generate acid,which spoils the teech and gives rise to caries of the teeth .Brushing teech,it can get rid of bad animalcule in the mouth, After brushing them,animalcule will cut down to more than 60 percent of it.As the same time,it can keep the gums better, to reduce the occurrence of illness.
The choice of toothbrush
You should choose the toothbrush for health care.The head of toothbrush is gentle, The surface of it is smooth and small, The top of it is smooth too. It not only gets rid of germs, but also keep teeth and gum
Protection and replacement of toothbrush
After brushing teech,you should put the head of toothbrush up in the cup,Place it at ventilation and desiccation.
Changing a new one every one or three month. If you find the hair on the toothbrush is worned out, please change it immediately.
The correct way of brushing teeth
The angle and action of brushing teeth
There are 45* angle between the hair of toothbrush and the surface of teeth.it leans and presses it slightly,which is on the juncture of the neck of teeth and gums, You should brush every tooth unright,turning the toothbrush slightly. Pay more attention to the right order,it's good for you.