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SSS 2010-08-10

时间:2010-09-03 03:26来源:互联网 提供网友:yu6707   字体: [ ]
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    (单词翻译:双击或拖选)

That’s what it might sound like if I had a tongue stud, hitting my teeth. Maybe you’ve seen people with studs in their tongue clicking it up against their front teeth, a move known as “playing.” But it turns out that the habit may destroy some smiles.

University of Buffalo1 researchers noticed that local high school students who had a barbell-type tongue stud commonly pushed the piercings against their front teeth. Then they examined a 26-year-old patient at the school’s dental clinic. She’d had been complaining about a large gap that had developed between her front two teeth. Seven years previously2, she got a tongue stud. And every day, for seven years, she pushed that stud up against her teeth.

The researchers say tongues are strong, and it makes sense that the force of “playing” will move teeth, even forcing them apart. The case was written up in the Journal of Clinical Orthodontics.

Tongue piercings have also been associated with infections, chipped or broken teeth, and gum trauma3. And the patient? She got braces4 to push her teeth back together. Which probably didn’t look quite as cool as she thought the tongue stud was.

Thanks for the minute. For Scientific American's 60-Second Science, I'm Cynthia Graber.
 


点击收听单词发音收听单词发音  

1 buffalo 1Sby4     
n.(北美)野牛;(亚洲)水牛
参考例句:
  • Asian buffalo isn't as wild as that of America's. 亚洲水牛比美洲水牛温顺些。
  • The boots are made of buffalo hide. 这双靴子是由水牛皮制成的。
2 previously bkzzzC     
adv.以前,先前(地)
参考例句:
  • The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
  • Let me digress for a moment and explain what had happened previously.让我岔开一会儿,解释原先发生了什么。
3 trauma TJIzJ     
n.外伤,精神创伤
参考例句:
  • Counselling is helping him work through this trauma.心理辅导正帮助他面对痛苦。
  • The phobia may have its root in a childhood trauma.恐惧症可能源于童年时期的创伤。
4 braces ca4b7fc327bd02465aeaf6e4ce63bfcd     
n.吊带,背带;托架( brace的名词复数 );箍子;括弧;(儿童)牙箍v.支住( brace的第三人称单数 );撑牢;使自己站稳;振作起来
参考例句:
  • The table is shaky because the braces are loose. 这张桌子摇摇晃晃,因为支架全松了。
  • You don't need braces if you're wearing a belt! 要系腰带,就用不着吊带了。
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