“牙垢”造句

使用牙刷去除牙垢很有帮助.
The use of a toothbrush to keep tartar down is very helpful.

除牙垢用带尖工具除去牙齿表面的 ( 污垢 )
To remove ( tartar ) from tooth surfaces with a pointed instrument.

我的牙齿上有许多牙垢.
I have a lot of tartar on my teeth.