I know nothing about teeth so forgive me if any of this sounds silly.
I broke one of my back teeth today. Inside the tooth it's brown with like a honeycomb pattern. The piece that broke off was fairly small in comparison to the tooth and it doesn't hurt (apart from being sharp now).
I won't have the cash to see a dentist for gawd knows how long, is there anything I can do until then?
Should I brush it more than usual or use a certain mouthwash or anything?
I can't find anything online other than "Go to a dentist" which is not an option right now.

