So finished his teeth root canal therapy will usually do teeth protection.

所以做完根管治疗的牙齿通常会做牙套保护。

youdao

But finished his teeth root canal therapy usually will gradually change color, front teeth may affect the appearance, if the patient care, can be done on metal ceramic tooth or all-ceramic crowns.

但做完根管治疗的牙齿通常会慢慢变色，在前牙可能会影响美观，若病人在意的话，可做上金属瓷牙或全瓷冠。

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I have a root canal filling in one of my teeth. The tooth is changing color. Can anything be done about it?

我有一颗牙在牙根管里补过。现在这颗牙变了颜色，有什么办法可以解决？

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