(408) 720-0900   •   (877) 9 Dental 25x25

Nasser Antonious, DDS, MAGD, FICOI
Master of the Academy of General Dentistry
Fellow of the International Congress of Oral Implantologists

Cupertino Root Canal Retreatment Dentist
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Root Canal Retreatment

25x25 arrow Introduction
arrow What Happens During Root Canal Retreatment?
arrow What you should know following treatment


Retreatment is necessary when bacteria have re-entered the tooth. This is usually due to decay or untreated canal areas. The patient may experience swelling or pain in chewing.

Sometimes a patient may have no symptoms, but their x-ray shows that there is a problem with a tooth that has previously undergone root canal therapy.

Infected tooth







What Happens During Root Canal Retreatment?

Step one:

After the tooth is "numbed", the canal system will be reopened to remove the previous root canal material. This may involve removing a crown, post and core material. Sometimes we are able to make a small hole in the existing restoration and work through that opening. The canals are then thoroughly cleansed and shaped along their entire length.








Step two:                                                                                                        
The canals are refilled with gutta-percha and the opening is sealed with a sterile cotton pellet and a temporary filling.


Temporary filling 






Step three:
The tooth is restored within a couple of weeks. If your existing crown can be saved, then you will need to have it repaired. If you do not have a crown, it will probably be recommended.
With time, the bone will heal where the bacteria was removed.


New crown






What you should know following treatmentFollowing Root Canal Therapy or

Root Canal Retreatment:

    1. The treated tooth is commonly VERY tender to touch, biting, tapping or chewing for a few days after treatment. DO NOT CHEW ON THAT SIDE.
    2. Discomfort usually subsides in a couple of days, but may last as long as a few weeks. Improvement will be gradual.
    3. The treated tooth, the injection sites, as well as the soft tissues around the tooth, will feel sore and tender.
    4. If your tooth throbs, keep your head elevated, even when lying down. Refrain from any strenuous activity.
    5. We usually recommend a non-steroidal anti-inflammatory medication such as ibuprofen, Advil, Motrin, or aspirin for at least three to five days following treatment. If you cannot take any anti-inflammatory medication, then take extra-strength Tylenol. If any of the recommended painkillers are not effective relieving the pain, you should call the office.
    6. Take all prescribed medication as directed.
    7. Rinsing the mouth with warm salt water (one teaspoon salt to 8 oz. of warm water), three to four times a day may also be helpful in relieving discomfort.
    8. If you initially feel better, but then get significantly worse two or three days after treatment, you may be experiencing what is known as a "flare-up." This is not a common occurrence, but if it happens, please contact our office.
    9. There is usually no necessary "waiting period" to restore endodontically treated teeth, unless otherwise indicated. Have the tooth restored as soon as possible. Do not wait more than two to four weeks.
    10. We routinely like to perform a follow-up exam at least six months after the treatment. We want to evaluate the treatment outcome, be sure that you have regained normal function with the tooth, and determine the presence of bone healing. There is no charge for this visit.

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Root Canal Retreatment Dentistry-Cupertino
arrow What is a Root Canal Treatment?
arrow Root Canal Treatment-What to Expect
arrow Root Canal Treatment
arrow Root Canal Retreatment
arrow Root Canal Treatment-Periapical Abscess
arrow Root Canal Treatment-Cracked Teeth
  arrow What is Apicoectomy?
  arrow Root Canal Treatment-Hemisection
  arrow Endodontic Treatments for Traumatic Injuries
  arrow Root Canal Treatment versus Tooth Extraction
  arrow Root Canal Treatment versus Implants
  arrow Myths About Root Canals
  arrow Root Canal Frequently Asked Questions
  arrow Root Canal Post-Operative Instructions
What is a Root Canal Treatment?   |   Root Canal Treatment-What to Expect   |    Root Canal Treatment   |   Root Canal Retreatment  
Root Canal Treatment-Periapical Abscess    |  Root Canal Treatment-Cracked Teeth   |  What is Apicoectomy?  |  Root Canal Treatment-Hemisection
Endodontic Treatments for Traumatic Injuries   |   Root Canal Treatment versus Tooth Extraction   |  Root Canal Treatment versus Implants
Myths About Root Canals   |   Root Canal Frequently Asked Questions   |    Root Canal Post-Operative Instructions

Nasser Antonious DDS is licensed as a general dentist in California. Sunnyvale Dental Care established since 1995
Sunnyvale dentist, Nasser Antonious DDS welcomes new patients from all areas including Sunnyvale, Mountain View, Santa Clara, Cupertino, Campbell, San Jose, Saratoga, Los Altos, and Los Gatos
General dentist, Preventive dentist, Cosmetic dentist, Invisalign dentist, Implant dentist, Children dentist, Sedation dentist

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