Two years ago I had a front tooth filled. Within a week I had discomfort which turned into horrible pain. The dentist told me it was normal, followed by a letter stating they would no longer have me as a patient and cancelled my future appointments. I faint from needles and it's not the first time I have been turned away. 6 months later the pain stopped and I forgot about it. Apparently the pain was an abscess that was very slow and just came to a head recently. I developed a pus bubble last month, and more and more a dull ache/pain. Dentist wants to do a root canal but I feel like it's been there too long to not extract it. I'm not concerned about missing a front tooth, but don't see the point of doing a costly root canal if it's likely to fail. Opinions??