The cost of treatment depends on the expertise, confidence and the quality of the particular Dr. Its true that many Dentists are using the RCT instruments only once. So if u r confident of ur Dr, go ahead.

Hello, the tools used in re root canal treatments are single use. A re root canal procedure is a much more complicated procedure and hence mostly done by experts only. The doctor's knowledge and expertise also are very important in this case. Please do not only think payment is for the tools, a doctor spends multiple years to master this expertise. I hope it all works out in your favor.

Yes, it is true, retreatment of root canal cost more and the instrument used for it can b used once, cause during the procedure, instruments losses their original form and there are chance of breakage of instrument if used another time, that is why, now a days most of the dentist make use of dental files only once.