How can nicotine gum cause mouth cancer if nicotine itself is not a carcinogen

Question

How can nicotine gum cause mouth cancer if nicotine itself is not a carcinogen

In: Biology

Answer 1

[This](https://www.quora.com/Is-there-any-link-between-nicotine-gum-and-mouth-cancer) is all I can find on the subject.
Basically nicotine gum does not cause cancer and there have not been any increases in cancer rates from gum consumers.