[RobertRoberts]

>But how did that fix it?

The tooth filled in on it's own. I just kept it cleaned out. I think the term I ran into recently that seems to describe my experience is "re-mineralization". Today is the first time I thought to look this term up on wikipedia. [0]

>Saliva, being the watery substance that constantly circulates the oral cavity, is capable of impacting both the remineralisation and demineralisation processes.

This quote from the Wikipedia article is sourced from a paper in The Journal of the American Dental Association. [1]

>Remineralization occurs on a daily basis after an acidogenic challenge through the presence of saliva.

[0] https://en.wikipedia.org/wiki/Remineralisation_of_teeth

[1] https://www.sciencedirect.com/science/article/pii/S000281771...

[sanderjd]

Ah, thanks for expanding - that wasn't clear to me from your original comment.