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.

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Testimonials

This is by far the finest practice I have ever been to. The Staff and Doctors are so caring, empathetic and efficient, making going to the Dentist a pleasant experience. I LOVE THIS PRACTICE! Dr. Wetherbee and Dr. Ahmed and the front desk staff, especially Kelley, Katie and Joan are all fantastic! I refer every friend I have to this practice.

Jayne Shamon Carver, MA

Being nervous about going to the Dentist, as I always have been, along with seeing a new Dentist for the first time in five years, I was not sure what to expect when arriving at Cranberry Dental Associates, today. My experience was nothing less than perfect. The front desk ladies were amazingly friendly and relaxed. Ashley, the Dental Assistant, was attentive and intelligent. Dr Ahmed was OUTSTANDING! I am glad I decided to come here!

Susannah Murphy Plymouth, MA

I was away at college and in the middle of the night experienced severe pain from an abscessed tooth and called our family's dental office emergency number. Unbelievably someone responded, immediately discussed my problem over the phone with me and arranged for me to be treated first thing in the morning and taken out of pain. Ultimately, I was referred to a specialist for root canal treatment. When I became nervous and uncomfortable with the endodontist, the doctor at Cranberry Dental interceded and completed the treatment himself. I am amazed at how responsive, compassionate and skillful they are and consider myself fortunate to have found Cranberry Dental Associates.

Nicole Tsina, Carver, MA

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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.