won't work," etc. In my own practice, about 25% of the patients have come in because the root canals failed the first time when done by their general dentist. Endodontists offer a higher success rate. Endodontists have surgical microscopes and specialized training that most general dentists do not have. Please understand that general dentists treat approximately 90% of the root canals in the USA. Endodontists get the tougher ones. Endodontists can have failed root canals, but so can implants (they have the same success rates). If the root canal failed because of fracture, then extraction and implant would be advisable. Endodontists can usually spot fractures with the microscope and thus recommend extraction before you go through the whole process of root canal therapy, post and crown and then problem from the missed fracture. Apicoectomy has about 90% success on an
uninfected canal, and 50% success on an infected canal. Re-treatment of the root canal offers about a 95% success rate. I feel it is always better to clean out the infection that is in the root canal rather than seal it into the root canal.