Hi kidgie,

Anytime a piece of foreign matter is located in an area that it's not meant to be in, problems can occur. From your one post, your description sounded like the tooth had a cyst that had formed above or around it and this cyst was not removed. It is typical for a root canaled tooth to form a cyst above or around it because it is the result of the bacteria proliferating past the end/root of the tooth. These cysts should always be removed during the extraction as it is a bacteria filled matter that feeds off of the blood supply.

Without seeing the pre op xray, I cannot tell you for certain if the "tissue" you speak of is a cyst. But is sure does sound like it could be.

Have you had a post operative visit with the oral surgeon since the extraction? If not, then it would be a good idea to schedule one and discuss the possibility of this "cyst" and how it could be blocking your sinus.

Bryanna