I went to the dentist to get 2 cavities filled. One of the cavities, my dentist said it was deeper than he thought so it may cause trauma to the nerve and I may need to get root canal. I know it's about a 50/50 chance that I may need one, but is there a timeframe I would know if I did need one - does it happen sooner than later? I'm worried because I'm going on a trip out of the country this Saturday for 2 weeks. The whole point of me getting these filled now was so that I wouldn't have to worry about these cavities while on my trip (especially since 1 cavity was under a bridge and the bridge has its own set of problems). Now I'm even more stressed about a potential root canal and I'm wondering if I should've just waited till I came back to fill them - I know too late now.