Q. Hello there hope you can help.ive had 2 new lava crowns fitted 1 week ago now ,and one of my front left tooth started to be so so painfull ,my dentists gave me 5 days worth of antiebiotcics,ive just been back to see her because my face doubled in size due to an absese,and she said i will need a root canel,because the root has died ,and ive got more tablets and i ve got to go back next week ,am i in for more painfull treatment ?