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

100% recommend this dentist! I am from out of town and was camping, and woke up with exploding pain in my jaw. Dr. Chisholm saw me on short notice on a Friday afternoon, did a thorough examination, and found out my problems were in my jaw, not in my teeth. He ground down an existing crown to make my bite even, And I experienced immediate relief. He could have charged an arm and a leg but was conscientious of my financial status and luckily didn’t even need to do x-rays. He recommended a chiropractic jaw adjustment, which I appreciate immensely. He’s very personable and it took time to sit and talk with me and make sure I understood everything. You will be in good hands with Dr. Chisholm!

Suzette S.

Great dentists. Worked well with my kids.

I had a crown. There were a few things that made it better than my last 3 crowns at 2 different dentists. First is that it was pain free. He did a good job at numbing. A few uncomfortable moments but no grip the chair in pain moments like I'd had with other crowns. The other was he used a dental dam. Kind of annoying for breathing and clamping on tooth not fun, but I have silver fillings and the dam prevented the silver (with mercury) from getting lodged in my mouth (one prior dentists i had to stop and fish a piece of filling from the back of my throat).

Cost is on par with other dentists I would have expected a bit cheaper due to the location but on par nonetheless.

Aaron S.

Very friendly and they do great work.

Jarom L.

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Contact Us. We encourage you to contact us with any questions or comments you may have. Please call our office or use the quick contact form below.

Contact Us

We encourage you to contact us with any questions or comments you may have. Please call our office or use the quick contact form below.