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60秒科學:小舌釘引發大牙縫

時間:2010-08-11 15:44:58 來源:scientificamerican 編輯:sunny  每天三分鐘英語輕松學

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給舌頭打洞裝舌釘常常會導致口腔感染,牙齒的磨損與破損,或是口腔外傷。那位女生后來呢? 她戴上了牙套用以把兩顆門牙重新矯正回去,這可沒舌釘那么帥了吧。

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 Buffalo 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 previously, 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. [Sawsan Tabbaa, Ivanka Guigova and C. Brian Preston, www.jco-online.com]

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

—Cynthia Graber

[The above text is an exact transcript of this podcast.]

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