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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.

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Testimonials

Dr. Beaty is an awesome Dentist! She also has a terrific Team of assistants who go above and beyond to make all patients feel comfortable. I would probably be the youngest person in history to have dentures if it wasn’t for Dr. Beaty. My family and I have been going to Dr. Beaty for over 20 years. I was looking for a pediatric dentist and when I called the office to make an appointment for another dentist, I was informed that Dr. Beaty had taken over the practice. I was assured she was great with children and she definitely did not disappoint! Dr. Beaty and her staff are excellent with children. My son was 3 and my daughter was 8 when we became patients of Dr. Beaty’s and since that union, my children have always looked forward to going to the dentist. Dr. Beaty – as well as her entire staff – have awesome personalities, terrific bedside manner and just overall kindness and concern for their patients. I have never been to a more dedicated, compassionate dentist who deeply cares about preserving your teeth. Dr. Beaty has always explained all treatment options, procedures, and the costs involved for those procedures. DB Dentistry follows-up with their patients to make sure there are no complications from procedures and that the patient is doing well. Even when she referred my children to the Orthodontist for braces, she made sure to check on their progress and to make sure we (especially the children) were comfortable with her referral. Dr. Beaty made sure that the excellent care her office provided was also being provided by her referral. To add to the excellent patient care, the amenities offered are above and beyond – from the chair massage, to the paraffin hand wax, to the warm neck wrap, to the mellow music. Feels more like going to a spa instead of seeing the dentist. Over the years, I have referred many family members and co-workers to Dr. Beaty and they remain patients. While Dr. Beaty is not an in-network dentist through my insurance, it is WELL worth the few dollars more to have peace of mind, comfort, and awesome care. I often think, I called looking for a dentist and gained a well-trusted and most respected friend. My family loves Dr. Beaty and DB Dentistry. They are THE BEST!!

Sandra

Naturally I spent the weekend on FACEBOOK sharing your artistry! The results are still unbelievable! The transformation is literally life-changing and I can't begin to thank you and your team of professionals enough for making it happen.

Michael

Dear Dr. Beaty,

What I appreciate most about your dental practice is your focus on the future. Rather than scold a patient for poor past dental care, you work with the patient to build better habits going forward.

I also appreciate your efforts to relieve patients’ anxiety about visiting the dentist. Some days the hot neck wrap, paraffin hand dip, or just the pleasant view turn a stressful experience into a relaxing one.

Matthew

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