9月20日是爱牙宣传日。在开篇伊始,我们想应景地说一说爱牙这个话题。你有没有担心过,当自己老了的时候,也会像父母或者祖父母那样牙齿掉落,需要戴上假牙?确实,随着年龄的增加,衰老不可避免,牙齿和牙龈也会发生变化。但费城宾夕法尼亚大学牙科医学院院长Denis Kinane告诉你几个日常牙齿保健的方法,只要坚持好好保护你的牙 September 20 is a toothpaste day. At the outset of this essay, we would like to say a good deal about the topic of love tooth. Have you ever noticed that when you are old you also fall like your parents or grandparents teeth and need denture? Indeed, as you age, aging is inevitable and your teeth and gums change. But Denis Kinane, Dean of the Dental School of the University of Pennsylvania in Philadelphia, tells you several ways to keep your teeth healthy as long as you keep your teeth protected