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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

I had the unfortunate experience of a severe tooth pain while visiting family in Vista. I called you and you got me right in- Dr. Sarkaria took care of me. She was gentle in touch and spirit and spent unhurried time with me. She was sweet, sympathetic and caring. She gave me immediate pain relief,prescriptions, and advice for the plane trip home to North Carolina the next day. She was correct in her diagnosis and i got it fixed. I would love to live in Vista to be able to visit such a great practice. Thank you so much

J.S.

I just wanted to thank all of you for all your wonderful care of my " bad tooth" experience! I am so thankful to have the best Dr's i ever had! Everyone there is the best at their jobs- but more important everyone is so kind and caring. I feel like i've known you a lifetime! Thanks so much.

Warmly. A. M

I came into this office a few years ago for an urgent need. Found them on goggle and they were the only ones that could fit me in that day. From that point on, after seeing the interaction the Doctors have with the rest of the staff, and how the entire staff treated the patients; I felt very safe and comfortable there. Years later, I still commute sometimes from where i live (nears San Diego airport) up to the office. Yes it's about 50 miles each way but, with the office professionalism, tact, and 'family' environment, I actually looked forward to coming into get something grinded on or my gums poked at! I never thought i'd be able to say that i looked forward to going to the dentist but, this office gave me that 'UMPH'!

A.C.

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