Because of the complexity of the root canal system, root canal instruments separation is one of common complications in root canal treatment, from the long-term curative effect, some of the root canal separation device can act as the role of root canal fillings, does not affect the prognosis of root canal treatment effect, but it is possible that the failure of root canal treatment on a hidden danger factors, but in the process of take out separation equipment often bring with tooth new complications, such as root canal side wear, broken teeth, etc., whether to need to take out is a difficult problem in clinical workers.Schools of thought contend in current column special invited five domestic well-known experts in the field of tooth pulp disease just discusses this problem, hoping to bring some enlightenment to clinical work.
