Plastic Surgery

Endodontic retreatment

What is the Endodontic retreatment?

Endodontic retreatment describes a dental root canal procedure that is carried out on a tooth that has previously had root canal treatment.

Endodontic retreatment is needed in cases when a tooth that has received endodontic treatment for a variety of reasons fails to heal or the pain continues. These reasons may include:
-  Narrow or curved canals were not treated during the initial procedure.
-  Complicated canal anatomy went undetected in the first procedure.
-  The placement of the crown or other restoration was delayed following the endodontic treatment.
-  The restoration did not prevent salivary contamination to the inside of the tooth.

Types of Endodontic retreatment

Endodontic retreatment is divided into surgical and non-surgical retreatment.

Non-surgical retreatment involves dissasembling the crown, post and core and re-doing the root canal.

Surgical retreatment. For some patients considering retreatment, Endodontic surgical treatment may be the best solution. An incision is made near the end of the root that allows for direct visualization and sealing of the root tip. Endodontic surgery is sometimes recommended in conjunction with retreatment.

What is the procedure?

Endodontic retreatment procedure is usually more complex than the first root canal treatment, because the restoration and filling material may need to be removed to accomplish the new procedure.

Conservative retreatment means removal of the original root canal filling, re-cleaning and refilling of the canal system. In some cases this requires disassembly of the existing restoration. This may mean removal of a crown, posts and restorative materials to gain access to the canals.

Once the case is retreated, a temporary material will placed to seal the opening. The tooth will require an interim temporary restoration while the area heals. In most cases, a final, permanent restoration can not be placed until there is visible evidence of healing (min. 6 months post treatment).

Recovery period and recommendations

Possible side effects and complications






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