How should you clean your teeth?
We all know that cleaning our teeth is important, right? Because if you don't clean them and things go wrong, they can cause you a lot of 1 and something uncomfortable. We are 2 from a young age how to clean our teeth. But the question is, do we all clean 3 in the same way? Is there a specific time or skills you should include into your dental routine (牙齿日常护理)?
When our milk teeth appear in our baby years, we are shown, often by our 4 , how to clean them. It is a ceremony usually along with some kinds of 5 songs. As we grow up, our baby teeth 6 , replaced by adult teeth. And soon, it's from trips to the dentist that we get more 7 . It feels like there are so many 8 tips.
University College London (UCL) studied 66 kinds of tooth brushing advice from 9 the world. The most commonly advised skills included circular movements (圆周运动) and horizontal (水平的) brush. 10 there were some differences. The angle (角度) of the brush and use of right movements were all changes on brushing advice.
And it seems that brushing for between two to three minutes, two or three times a day, 11 the best course of action. And if you're one of these people who think it's wise to brush straight after sweet foods, think again. Bacteria (细菌) weaken the enamel (牙釉质) almost immediately 12 eating. So it's 13 to wait for an hour or so before brushing.
So while there is not one standardized (标准的) skill, most 14 advised a mixture of horizontal and circular movements lasting for between two to three minutes, two or three times a day. Do that, and you might not 15 too many trips to the dentist.
