Here's two links, one is for the overlap in general dream themes across different cultures and the other is an exploration of the tooth dream as a common global phenomenon- the idea that it relates to the "incorporation of dental irritation into dreaming" is an obvious explanation that I never thought about honestly.

https://3quarksdaily.com/3quarksdaily/2015/01/typical-dreams-a-comparison-of-dreams-across-cultures.html

https://www.frontiersin.org/articles/10.3389/fpsyg.2018.01812/full