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Root Canal Retreatment

In rare cases, root canal therapy fails to work as expected. The treated tooth might not heal properly or a patient might experience post-surgical complications that jeopardize the tooth. Root canal retreatment involves the removal of the previous crown and packing material, the cleansing of the root canals, and the re-packing and re-crowning of the tooth. In short, root canal retreatment is almost identical to the original procedure, aside from the structural removal. The success rate for a root canal retreatment runs at around 75%.

Root canal treatments and retreatments are a better alternative than extraction for most individuals. If a tooth has good bone support, a solid surface and healthy gums beneath it, it stands a good chance of being saved. Opting for root canal retreatment can be far less expensive than the alternatives. Dental implants, extensive bridgework and the creation of aesthetically pleasing prosthetic teeth cost far more than working with the natural tooth. They also require maintenance and feel less natural than a “real” tooth.

Why is root canal retreatment required?

Though the prospect of more endodontic surgery might not be pleasant, root canal retreatment is fairly simple. In general, the whole treatment can be completed in 1-3 visits.

There are a number of reasons why root canal therapy unexpectedly fails, including:

  • Cracked crown leaking filling material.
  • Curved or narrow canals not treated during the original procedure.
  • Delay in the placement of restorative devices following the procedure.
  • New decay to the tooth.
  • New fracture in the treated tooth.
  • Saliva entering the restorative structure.
  • Undetected complex canal structures.

What does root canal retreatment involve?

On the day of the retreatment procedure a local anesthetic will be administered, unless another type of anesthetic has been selected. The affected tooth is isolated with a rubber dam. The dam protects the tooth during treatment from bacteria and saliva. The amount the dentist can do within a single appointment will much depend on the amount of inflammation present, and the complexity of the treatment.

The first step in a root canal retreatment is to gain access to the inner tooth. If a crown and post have been placed, these will be removed.

Next, filling material and obstructions that block the root canals will be removed. This removal is conducted using an ultrasonic handpiece. The advantage of using this tool is that any unwanted material is vibrated loose. Tiny instruments will then be used to clean and reshape the root canals. X-rays may be taken to ensure that the roots are thoroughly clean. If this part of the treatment proves to be complex, medicated packing material will be applied, and the rest of the cleansing procedure will be done at the next visit.

When the dentist is confident that the root canals are completely clean, gutta-percha is used to pack the space. This rubbery material seals the canals to prevent bacterial invasion. Finally, a temporary crown or filling is applied to tooth. At a later date, the color-matched permanent crown will be placed.

If you have any questions or concerns about root canal retreatment, please ask your dentist.

Testimonials.

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Testimonials

My mother is in a nursing home in Harrisville Michigan. She dropped her dentures and broke a tooth. The entire staff was in her room trying to find the broken tooth, but it must have fallen into the heat register or something. Anyway it never turned up. My brother, Rick, went to visit and called to tell me about it. "We have to do something," he told me. "I can't stand to see mom looking like this." He was planning to take a few days off and take me up north to see about getting her to the dentist to get her plate fixed. I went online and called several dentists in the area. They could not help me with the problem. Then I found Dr. Gregg Resnick DDS in Alpena. He said he could fix them and have them ready by the next day. I had our friends, Shirley and Tom Harmon, pick up the plate and take it to his office. The doctor called me (I live over 200 miles from where my mom is). Dr. Resnick was concerned that he might not be able to grind the tooth properly and that my mom wouldn't be able to chew properly. You see he was under the impression she had a full set of dentures and didn't realize that she had some lower teeth. He told me that although the tooth was broken mom would not have a problem chewing with it that way. "But, we do have a problem," I told him. "My brother can't stand to look at her with that broken tooth." He sighed and said, "Let's do it then." I could have hugged him through the phone. I promised him that if mom had a problem chewing that I would bring her handicap van and get her to his office the next day. Well, mom got her plate today. She ate dinner and said that she could chew just fine. I have Dr. Resnick to thank for this. He did me a favor and it worked out just fine. I wish there were more dentists like him. He and his staff gave me 5 star service.

Sandra C.

My name is Brad Boehm. I am a local physician in Alpena, Michigan. I had an erosion problem with my teeth that made them appear yellow and deformed. I went to see a cosmetic dentist in Atlanta, Georgia. The repair work to my teeth including veneers was over $70,000. I came home very depressed. While at a routine cleaning I discussed this with Dr. Gregg Resnick, my new dentist. He formulated a treatment plan that was identical to the plan from Georgia at less than one-third the cost. I am sure the cost in Georgia included partial rent payment for the mansion the clinic was located in.

I chose to have my teeth fixed by Dr Resnick and I truly could not be happier! During the treatment process minor adjustments were made. This required a quick end of the day visit to see Dr. Resnick instead of a day or two wasted flying to Atlanta. My family and friends comment all the time about my teeth and how I smile so much more. I would recommend Dr. Resnick to anyone who wishes to improve their smile.

Dr. Boehm

I first met Dr. Resnick 20 years ago when referred by a friend for emergency care. Now Nancy and I are thankful he has been our dentist ever since. We think of our appointments as going to an office where we will be treated as friends, not only by him, but also by the staff.

Dr. Resnick is always calm, patient, encouraging and knowledgeable in dental care. His staff reflects his demeanor. Furthermore, he is an interesting guy.

He is always interested in patients as individuals outside of the office. I remember telling him of impending surgery and later he called me at home to encourage and wish me well.

We recommend him to all our friends.

Robert and Nancy Sloan

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