美国人的牙齿明显好于其他西方国家,甚至它是识别美国人和其他西方国家人的最明显区别,BBC在谈论美国人的牙齿时,曾引用一位爱尔兰学生的感慨:“你很容易辨别出哪些是美国人,即使让他们穿上爱尔兰人的服饰也能认出来,因为他们有个显著特点:都有着一口整齐而洁白的牙齿。”英国媒体曾比较过英美两国明星的牙,英国明星的牙齿在颜色和整齐度上明显逊色于美国同行,英国人的牙齿属于自然的美白整齐, Americans have significantly better teeth than other Western countries, and even the most obvious difference between identifying Americans and other Western nations. The BBC quoted an Irish student as saying when talking about American teeth: “You’re easy Identifying which are American, even allowing them to wear Irish clothing is also recognizable because they have the salient features of having neat and white teeth. ”The British press compared the stars of the British and American teens , The British star teeth significantly inferior in color and uniformity in the United States counterparts, the British teeth are natural whitening and tidy,