Toothpastes don't just clean teeth anymore. They have special ingredients for preventing decay, plaque control, tartar control, whitening, gum care or helping sensitive teeth.

牙膏并不清洁牙齿，他们只是含有特殊物质预防龋坏，控制菌斑，增白，保护牙龈或者保护改善牙齿过敏。

youdao

By 10-15 years: teeth are worn, and heavy tartar build-up is likely with the possibility of some teeth missing.

10 - 15岁，牙齿磨坏了，严重的牙垢，还有些牙齿都脱落了。

youdao

By 3-5 years: All teeth may have tartar build-up and some tooth wear.

3 - 5岁，所有的牙齿上都有牙垢，一些牙发生磨损。

youdao

Cambara remembers his gums bleeding prolifically and receding wastefully at a phenomenal rate, the inflammation, combined with the irritation on account of the tartar deposits, causing the loosening of several of his teeth.

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