全网好奇，谷爱凌嘴里咬的东西是啥？

在2026年米兰冬奥会自由式滑雪女子U型场地技巧决赛上，谷爱凌卫冕冠军。赛场之上，除了她高难度的翻转动作和稳定的竞技状态，一个细节也引起全网热议，就是她含在口中、偶尔晃荡的挂绳式物件。

不少网友疑惑：“谷爱凌嘴里咬的，是帽绳吗？”

Gu Ailing successfully defended her Olympic gold medal in the women's freeski halfpipe at the Milano-Cortina 2026. While her high-difficulty tricks and steady performance dominated the competition, a small detail caught the attention of viewers worldwide: a corded object dangling from her mouth.

Social media users quickly took notice, with many wondering whether it was simply a hoodie string.

corded /ˈkɔːrdɪd/ adj. 用索子捆扎的；绳制的

谷爱凌在大跳台出发区 图源：央视频

谷爱凌嘴里咬的到底是什么？

2月14日，谷爱凌在女子大跳台资格赛中 图源：新华社

记者从口腔医生那里了解到，这确实是个牙套，但不是用于矫正的，而是护齿牙套，它通常用比较软的硅胶制成，除了牙齿外，整个头部都可以受到保护。

据杭州市红十字会医院口腔科主治医师王海英介绍，在运动的过程中，牙齿一般是咬紧的，受到的外力会往上传。有时候运动导致上颌骨骨折，如果上颌骨没事，会传到脑部，产生脑震荡，通过护齿牙套，上下牙齿即便咬着，中间也会有缝隙，可以把受到的外力，往牙齿各个方向分散。

The object is a mouthguard, according to dental professionals. Unlike orthodontic devices, this version is made of soft silicone and designed to protect not just the teeth but the entire head during high-impact sports.

"When athletes clench their teeth during intense movement, external forces can transmit upward," said Wang Haiying, a dentist at Hangzhou Red Cross Hospital. "A fall can sometimes cause fractures of the upper jaw. If the jaw remains intact, the force can travel to the brain and cause a concussion. A mouthguard creates a cushion between the teeth, even when clenched, dispersing the force in different directions."

orthodontic /ˌɔːrθəˈdɑːntɪk/ adj. 畸齿矫正的，齿列矫正的

concussion /kənˈkʌʃn/ n. 脑震荡

以滑雪运动为例，在速度比较快的情况下，如果滑雪者不慎摔了一跤，瞬间冲击力极大，如果没有戴护齿牙套，在巨大冲击力下，轻则牙齿断裂，严重时可能损伤舌头，甚至出现下巴骨折、牙齿被撞进骨头里等情况。医生介绍，目前，护齿牙套多见于专业运动员使用，普通人群几乎很少用。

那么，是不是普通人群真的就不需要护齿牙套呢？医生透露了一组数据：每年跟口腔有关的外科急诊中，有接近三分之一，是运动损伤导致的，而如果佩戴了护齿牙套，损伤完全有可能避免。

In sports like skiing, where speeds are high, a fall generates tremendous impact. Without a mouthguard, athletes risk broken teeth, tongue injuries, and in severe cases, jaw fractures or teeth driven into the bone.

While mouthguards are commonly used by professional athletes, they remain rare among the general public. However, Wang noted that nearly one-third of dental emergency room visits each year result from sports-related injuries, many of which could be prevented with proper protection.

医生提醒，进行剧烈运动，最好还是有意识地佩戴护齿牙套。它和矫正牙套一样，护齿牙套可以根据每个人的口腔具体结构，进行个性化定制。

For those engaging in high-intensity sports, dentists recommend wearing a custom-fitted mouthguard tailored to an individual's dental structure.

来源：新华每日电讯综合新华日报等

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