Q. Im 17 when i was 12 i boy puched me down the stairs and i broke half of my 2 top teeth.i had to get root canal for 1 of the 2 teeth,after i got the root canal my gum start to smell realy bad 24.7 i tried every thing i flossed i used mouthwash everything.i went to the dentist and he ended up taking the tooth off.but the smell was still there.he took a xray but he kept saying there is nothing there i went to 4 dentist and they are saying the same thing.i know that there is somthing wrong 1.it smells really bad 2.it hurts me a lot 3.sometimes i get a pimple on the gum.plz help me