I had a root canal on #19 in 1999. In 2009 I had to go in for re-treatment. Recently it has been hurting and a small swollen abscess emerged and went away on the inside gum.
I went to an Endo who said he thought the root was fractured and that it had to be extracted.
I then went to the Perio who said he didn't think it was fractured but that #19 was suffering from external resorption, and he recommended extraction and implant. (for the bargain price of $4K)
I have included links to the 2009 xray and the xray taken 2 days ago. Does this look like an obvious extraction case?
yesterday's xray: http://static.checkdent.com/forum/uploads/0_503d5846816e52012.jpg