Posting here for traffic because I'm desperate 
So a few months ago half my tooth fell out and I was in extreme pain. I booked an emergency dentist appointment and she gave me a temporary filling and told me to come back for a root canal. I had the root canal done a month ago and she re-filled it with another temporary filling until I came back for my next appointment to fill it permanently which is in a couple of weeks.
This afternoon another bit of the tooth came out and now the temporary filling has come out too. I have about a quarter of the tooth left and I'm terrified the pain is going to return and I can't book an appointment tomorrow as it's Sunday.
I'm just wondering if the pain will come back if I've had a root canal or if there's no root is there no pain? Also what will happen now, I'm assuming she can't fill it as more of the tooth has broken off so will it just be extracted?
I'd be so grateful if someone could help