Re-root Canal Treatment

A root canal re-treatment is indicated when the previously root canal treatment was not successful due to faulty root canal procedures or if the infection has not subsided for an extended period, re-infection due to complicated root anatomy, new infection due to salivary contamination or fractured tooth, inadequate periapical healing, etc. The root canal is opened again along with removing the previous restoration by an endodontist and thoroughly cleaned and shaped. The root canal procedure is again repeated.

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What is the treatment for a pus-filled pimple at the site of my flap surgery?

Query: Hello doctor, I am a 35 year old male. I had a root canal treatment done on the lower left side second molar about four to five years back by an endodontist. Two years after the treatment, the ceramic crown came off and was replaced by a metallic crown. Recently, I had a pus pimple under that t...  Read Full »


Dr. Naveen Thomas

Answer: Hello, Welcome to icliniq.com. The infection is due to the improperly done root canal of the mesial root of that tooth. Flap surgery was done needlessly. The treatments possible are: Frequently, what the dentist would do after such a problem is to extract that tooth. Go to an Endodontist and reques...  Read Full »

Is re-RCT necessary for treating pain in an RCT-treated tooth?

Query: Hello doctor,I am a 36 year old male. I had a root canal treatment five years back. Since the last two days, I have severe pain in the same tooth. Irrespective of a cold or hot sensation, the pain was constant. My dentist has prescribed Oflox OZ and Meftal forte for five days and advised re-RCT. Pl...  Read Full »


Dr. Naveen Thomas

Answer: Hello, Welcome to icliniq.com. I have seen the X-ray (attachment removed to protect patient identity). There is an infection in one of the roots of the tooth, which needs a retreatment. You can see it as a black circle surrounding the apex of the posterior root. There is no option but to undergo re...  Read Full »

How is pain from underneath a dental crown treated?

Query: Hi doctor, I have a constant aching pain below one of my crowns for two weeks. I have done a root canal treatment before four years. It occurred due to a dead nerve and resulted in chipped teeth and so root canal treatment was done. As this throbbing pain got worse before bed, I consulted the den...  Read Full »


Dr. Akmal Albert Asham Abdelmalek

Answer: Hi,Welcome to icliniq.com.It seems that your infection in the crowned tooth has come back again. You can confirm it by palpating the gums above the tooth where the root is located inside the bones and tap with your fingers on the tips of the tooth. If you have pain, then it occurs as a recurring inf...  Read Full »

How to restore my tooth?

Query: Hi doctor, I have neglected my dental health for a long time. I am a 62 year old married male. I have had several teeth extracted. I lived with a couple teeth whose caps have broken off on my left side and a few molars on the right for chewing. I am suffering from hypertension and is controlled wit...  Read Full »


Dr. Naveen Thomas

Answer: Hi, Welcome to icliniq.com. By reading about your symptoms, it seems that your root canal treated tooth is the one causing the problem. The rate of success of such root canal treatment is lesser in old age and also if you are diabetic. The only meaningful solution seems to remove the teeth and place...  Read Full »

RCT was finished shorter than the apical length due to pain. Is apicoectomy advisable?

Query: Hello doctor, I got my front (upper 12 probably) tooth RCT done six months ago. The RCT was short because I experienced acute pain beyond that point. RCT is about 1.8 mm short. He then suggested getting apicoectomy because RCT was incomplete. From a second opinion, the other doctor recommended a re...  Read Full »


Dr. Himayoon Majeed Mir

Answer: Hello, Welcome to icliniq.com. I have been through your query, and I can understand your concern. Endodontic treatment for any tooth when it is not completely done like in your case it is short. It might be that you cannot feel pain or have any other discomfort. But it is highly susceptible to th...  Read Full »

Pain is not subsiding after root canal treatment. What to do?

Query: Hi doctor, Three weeks ago, I had my root canal treatment done. Pain is not subsiding. Please advise. I have enclosed latest x-ray for your reference.  Read Full »


Dr. Naveen Thomas

Answer: Hello, Welcome to icliniq.com. Your root canal treatment has become failure and is evident in the radiograph (attachment removed to protect patient identity). Kindly repeat root canal therapy or you will eventually need to extract it as the material has gone very deep. The material is extending b...  Read Full »

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