随时使用带环和固定的保护装置，因为这样可以保持岩石的完整。

Use runners and “placed” protections whenever possible because they leave the rock intact.

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鞋舌是完全填充的，上面有一个而不是多个鞋带环，以便将鞋舌固定在原位。

The tongue is fully padded, and has one lace loop (instead of multiple ones) on it to keep it in place.

youdao

按他的情况需要两、三年，等到带环取下来后，太郎还得需要戴上个固位体以确保其牙齿固定在合适的位置上。

In his case, two or three years. After the bands are removed, Taro will wear a retainer to be sure that the teeth stay where they should.

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