Root Canal Treatment

Root canal treatment is done to save a tooth that is severely decayed or infected. In this procedure, nerves and blood vessels present in the pulp of the tooth are removed, and the pulp chamber is filled with a biocompatible material.

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I had a root canal treatment two weeks ago, but I am scared to visit the dentist again because I had pain during the procedure despite multiple anesthesias. Please help.

Query: Hello doctor, I had a root canal treatment two weeks ago, and going back to the dentist to finish the filling tomorrow. I am terrified because even after multiple anesthesia injections, one of the roots was paining badly when the dentist was cleaning them. I feel I cannot survive that kind of pain a...  Read Full »

Dr. Ummah Mohammad

Answer: Hello, Welcome to I understand your concern, but the good news is it should not hurt if it is the final filling today. In case if the tooth hurts, then filling cannot be completed today. Tell your dentist to clean it. What happens in a root canal is that the pulp tissue which is the blo...  Read Full »

I had a sharp pain in my lower left root canal treated molar, which was relieved after taking Advil and Tylenol. What could be the reason for the pain?

Query: Hello doctor, I am a 53-year-old male. I have an irregular bite where contact occurs primarily on the back teeth. The last two molars on both sides have gold crowns. I also wear a mouthguard. About a week ago, I started having pain in the left last lower molar. When I went to the dentist, an X-ray s...  Read Full »

Dr. Krishna Swaroop Achanta

Answer: Hello, Welcome to Thank you for your query. I understand your concern. I would like first to tell you irrespective of the pain, you should not have taken so many tablets of Advil and Tylenol all at once in a day as only painkillers can worsen the infection instead of solving it. Pain...  Read Full »

I have a decayed tooth, and I have been experiencing pain in that tooth after undergoing dental treatment. Please help.

Query: Hello doctor, I visited a dentist because of the pain in my tooth. She started doing the procedure but am not sure if she was doing that correctly. She anesthetized me thrice but I could still feel the pain. I am not satisfied with her treatment. Please suggest what to do. Please help.   Read Full »

Dr. Naveen Thomas

Answer: Hello, Welcome to I went through your query and understood your concern. The medication the dentist puts inside the tooth is used for necrotizing any remaining nerves inside the roots and also sanitizing them. It is called Formocresol. In such an infected cavity that causes pain, nerve...  Read Full »

I got a root canal done on my upper front tooth but suddenly I developed a swollen face after a few days. Please help.

Query: Hi doctor, I got a root canal done on tooth, the one on the upper front left side. My dentist prescribed me antibiotics after my root canal for seven days. I took them for seven days. I woke up on ninth day with a swollen face on the same side of the root canal next to my cheeks. I went back to the ...  Read Full »

Dr. Nupur Prashant Shah

Answer: Hi, Welcome to I understand your concern. In such a situation, I advise you to go to your second dentist or an oral surgeon to remove the root canal-treated baby tooth as your antibiotics are going on, so you will not need to take them again after removing a tooth. After the removal,...  Read Full »

What is the treatment for a cyst on my root canal-treated tooth?

Query: Hello doctor, I have the first upper molar root canal treated 15 years ago. It has undergone two root canals treatment but does it seem incomplete? I did a CBCT and it shows a cyst and sinusitis although I have not that much pain. I am 41 and the dentist told me that I have bone resorption at the up...  Read Full »

Dr. Gaurav Kumar Pandey

Answer: Hello, Welcome to At first, I appreciate you because you have so much awareness of your oral health. The life span of normal root canal treated tooth is 5 to 6 years. If you have 15-year-old treated tooth, it means you are so health conscious and take care of your oral hygiene. My opi...  Read Full »

I have been experiencing pain behind the molars on the left side where the crown lengthening was done five years ago. Is this normal?

Query: Hello doctor, Five years ago, I underwent a re-root canal treatment redone on the left molar and crown lengthening behind both the right and left molars. Went to the dentist to replace the crown, and the dentist advised crown lengthening about 14 days before crown cutting. The crown lengthening was ...  Read Full »

Dr. Muzaffer Hussain Parray

Answer: Hello, Welcome to Thank you for your query. I understand your concern. Usually, the pain should not be there if the wound is healing normally. However, there may be either an infection or some tissue that is delaying healing. If you could send me the X-ray of the tooth, you had under...  Read Full »

I have pain in my tooth after getting a crown placed, and I took a second opinion from another dentist who claimed that the crown is faulty. Please help.

Query: Hello doctor, I got a crown done for my tooth six months ago but it is still giving me trouble. I consulted a different dentist a few days ago and got my teeth cleaning procedure done. They examined the crown and took an X-ray. They found an open margin on one side of the crown. They also wrote a re...  Read Full »

Dr. Naveen Thomas

Answer: Hello, Welcome to The pain is not caused by the crown in your case, the crown is fine and it does not need any replacement. The tooth on which the crown is placed requires endodontic treatment i.e. root canal treatment. In some cases, when the crown is done without endodontic treatme...  Read Full »

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 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 request r...  Read Full »

I am a 33-year-old woman, and my lower molar got fractured after having a root canal done. Please help.

Query: Hi doctor, I am a 33-year-old woman with quite healthy teeth in general. I still have all my natural teeth, including wisdom teeth. Last week my lower molar broke down, and I had a root canal done on that tooth four years ago. My dentist prepared it for a new crown last Wednesday but did not fit a ...  Read Full »

Dr. Soheel Hussain Zargar

Answer: Hi, Welcome to I understand your concern. The dentist should have done temporization under such conditions. It is his fault for not doing so. Yes, a crown can supra erupt, creating a problem in the fitting. Two or three weeks is a long time, and a crown can break. I advise you to wait ...  Read Full »

I have a burning sensation and pain around my eye and face after RCT. Will the pain persist?

Query: Hello doctor, For the past 2 to 3 weeks, I have had a burning sensation around my eyes and face. I have been diagnosed with irreversible pulpitis or pulp necrosis on my left side, first upper molar. I had a root canal done for the same before 72 hours, but still, my facial pain persists. I have bee...  Read Full »

Dr. Bharat Joshi

Answer: Hello, Welcome to I can understand your concern. The medication prescribed is not a potent analgesic that is Panadol (Acetaminophen) and Ibuprofen. That is why the pain persists. Secondly, Carbamazepine (Tegretol) is given for trigeminal neuralgia and not for irreversible pulpitis. Wo...  Read Full »

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