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About Jeff Dalin DDS
Expertise
general dentistry questions with topics ranging from cosmetic dentistry to dentistry for children

Experience
Fellowships in American College of Dentists, the Academy of General Dentistry, and the International College of Dentists.
 
   

You are here:  Experts > Health/Fitness > Dentistry > Dentistry > Is it an abscess or a cyst over my root canal?

Dentistry - Is it an abscess or a cyst over my root canal?


Expert: Jeff Dalin DDS - 3/13/2006

Question
Hello,
About two years ago, I had a root canal on a badly cavitied molar (top left, second back from my canine). After the treatment, I noticed a tender bump above the tooth and it has been that way ever since. Last month, the bump grew to about the size of a pea and was very tender (Not painfull, though) and the tooth has gone a greyish colour. The bump's shrunk back down to how it was now, but there's a small hole just above my tooth (below the bump) which keeps leaking yellow fluid, especially if I put pressure above it.
Please help me learn what this is & how to treat it - I'm a traveler and am not registered with a dental practice (UK)
Thankyou so much for your help.

Answer
Lauren,
I am sorry that I did not answer this sooner...I just received it from All Experts.

This sounds like you have what is called a fistula present over the root of that tooth. A fistula is a drainage point for the infection that is present. Once it pops up, swelling and pain usually goes away because it now has a way to drain the pressure off.

You need to see a dentist or preferably an endodontist (a root canal specialist) to have the area evaluated. Perhaps it needs retreating. Make an appointment right away.

Good luck,

Jeff Dalin, DDS

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