Brushing your teeth effectively lowers your chances of getting a host of chronic diseases, as well as keeping your teeth and gums healthy. But the majority of us are doing it wrong.

In our quest for the perfect pearly whites, our bathroom cabinets are stocked with whitening toothpastes, floss and mouthwashes. 为了追求一口珍珠般洁白无瑕的牙齿，我们的浴室柜里囤满了美白牙膏、牙线和漱口水。 But when it comes to oral ...