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1. Use teeth whitening floss 用美白牙线 Tooth floss is an absolute must-have. We are sure that you already have this item in your bathroom. However, tooth floss with whitening components will not only clean your teeth. It will also help you keep the enamel whiter. Whitening floss will reach those spots which are hard to see. At the same time you will make your gums much healthier as well. That’s a simple tip yet quite effective. 牙线绝对是必备品，我们相信你家浴室里一定备有这个东西。不过，具有美白成分的牙线不仅能清洁牙齿，还有助于保持牙釉质亮白。美白牙线能深入看不见的地方，同时也能使牙龈更健康，这招简单却很有效。 2. Tooth brush should be replaced more often 勤换牙刷 Do you keep track of how often you replace your old tooth brush? It all starts with small items, so please pay attention to how new your tooth brush is. Why is it so important? The answer is simple. The older your tooth brush is, the more bacteria it accumulates. Such a brush causes more harm than good. Purchase a new tooth brush and learn to clean your mouth properly. Brushing only your teeth is definitely not enough. Massage your gums, clean your tongue and gargle your throat twice a day. The same rule applies to electric tooth brushes. Depending on the frequency with which you use the brush, change the head more often than you used to. | 
