posted on Dec, 16 2010 @ 01:51 PM
Oh boy. Don't know where to start. I am a general dentist, so I hope you can take this for about as informed as you are gonna get. First off,
treating a failed root canal abscess from a root canal years earlier with antibiotics is completely bogus. You may get a reprieve from the pain and
swelling for a few weeks, but the source of the abscess is still there. If a root canal fails, it is only because of a few factors. First, and most
common, is a missed accessory canal inside the tooth. These are often very small and can only be seen with a surgical microscope. Usually, this type
of failure shows up quite a bit of time after the root canal, and in some cases many, many, years. These can usually be treated by retreating the
root canal by a specialist. The second cause of failure would be a fractured root or fractured tooth where the fracture extends through the tooth and
into the bone. Typically, these teeth are hopeless and need to be extracted. Every once in a while I will come across a tooth that was simply not
cleaned out properly. This is the third most common cause of failure. Fortunately, it is also quite rare. Dentists, like all surgeons, are working
on human beings. Human beings are all different, and sometimes things that arent in the control of the care provider happen. It is most important to
remember, that what caused the root canal in the first place wasn't the dentist. Rather, it was neglect on the part of the patient. People die
during bypass surgery, but I never hear anyone say "why you should avoid bypass surgery like the plague". I'm not sure why we dentists get a bad
rap, or why root canals get such a bad rap. I always keep my patients best interest first and foremost, and treat them like I would like to be
treated myself.