For years I have had something wrong with my teeth . There is usually swelling of the gums and ulcers come up , and I get really bad toothache . On saturday I got root canal treatment done to see if that helped . It just made things worse , my gums swelled up , more ulcers came , and really bad toothache . So just today I went back to the dentist , and he did the root canal again . Nothing has changed . I'm still in a lot of pain , and the gum is even more swelled up . The dentist thinks it's an infection , My mum thinks I must have damaged my teeth . I think I might have gum disease . I'm only 16 and Don't want to lose any of my teeth , and I'm actually quite scared . What do you think is wrong with my teeth , and what should I do ? .