1.LETTING GO OF YOUR BELOVED BRUSH
和喜欢的牙刷说再见
You should replace your toothbrush when it shows signs of wear, every three months, or after being sick — whichever comes first. If not, you’ll actually be putting germs in your mouth instead of cleaning them out. Yuck!
当牙刷看起来用了很久时，你就应该更换牙刷了，一般以三个月为更换周期，或者患病之后更换牙刷（无论哪种情况在先，都应更换牙刷）。如果不这样的话，其实你并没有将细菌清洁出去，而是把细菌带进了口腔。好恶心！
2.TAKE YOUR TIME TO DO IT RIGHT
花时间正确刷牙
It may seem like an eternity, but it’s recommended you devote two minutes to your tooth brush time.
虽然慢慢刷牙的过程可能像过了一万年，但推荐大家——用两分钟来刷牙比较合适。
3.CONTROL YOUR CRAVINGS
控制你的渴望
Brushing your teeth after giving in to a sweets craving may be your first instinct, but it's a bad idea. You want to wait at least 30 minutes after eating sugar or acidic foods to brush your teeth.
也许你会本能地想要在吃甜食后马上刷牙，但这并不好。其实，最好在吃过甜食或酸食后的30分钟再刷牙。
4.THE ONE TIME YOU SHOULDN’T GO HARD
不用用力过度
Go hard or go home doesn’t apply to brushing your teeth. They get just as clean when you brush gently, and it’s better for your gums.
用力过度并不适用于刷牙。轻柔地刷牙才能使牙齿更清洁，而且对牙龈也有好处。
5.CREATURES OF HABIT
养成习惯
It's recommended to start in a different spot every time you brush. It keeps you from establishing a routine that neglects the same teeth each time.
推荐大家每次刷牙都从不同的位置开始，这能避免你养成每次会忽略相同几颗牙齿的刷牙顺序。
6.BIG SOFTIE
软毛牙刷
Buying a hard bristle tooth brush won’t impress the checkout girl. You should only brush with soft bristles.
买硬毛的牙刷可不会给你的约会女孩带来好印象。只能用软毛牙刷刷牙！
7.THE DISCOMFORT OF FRESH BREATH
清新口气的苦恼
Ignore your gag reflex and brush your tongue for fresher breath.
忘掉那反胃的感觉，记得也刷一刷你的舌头，得到更清新的口气！
8.IT'S ALL IN THE WRIST
只用手腕发力
Brushing up and down isn't good for your gums. Try brushing in small circles instead.
大力上下刷牙对牙龈很不好。下次试试在牙齿上画小圆圈吧。
9.MATH IN REAL LIFE
现实生活中的数学问题
Tilt the brush to a 45-degree angle so it hits your tooth and gum line at the same time. See, you should have paid attention in geometry class.
把你的牙刷倾斜45°，这样就不会在刷牙时损伤你的牙龈了。看啊，你果然应该在几何课上多听讲的！
10.LET IT BREATHE
让牙刷呼吸
Covering your toothbrush can allow bacteria to grow. You should keep it upright and in something that allows it to air dry instead.
盖住牙刷会让细菌滋生。所以，你应该把它倒过来，让它能够接触到空气，也就能够很快地让牙刷干燥（防止细菌生长）了。