Post And Core

A post and core are used to retain the artificial crown in an endodontically treated tooth where enough crown structure is not present. A post is mainly made up of metal in the shape of the root canal and inserted into the prepared canal, which retains the core restoration over it to receive the crown. Posts are classified into custom-cast posts, prefabricated, tapered, threaded, metallic, non-metallic, etc. These are indicated when more than half of the tooth structure is lost. Sometimes they are found to weaken the teeth over time due to mechanical stress.

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When can we do post and core reconstruction on a tooth?

Query: Hello doctor, I have several worries about my teeth. Can you please help me with the concern? Is my fifth upper right tooth suitable for post and core reconstruction? From the X-ray, what is the state of my teeth? Do they look worrying? Is there anything I should worry about? Are my gums receding o...  Read Full »

Dr. Akmal Albert Asham Abdelmalek

Answer: Hello, Welcome to Regarding your canine's gum line, it is not looking bad. It is normal for the gum line on the canines to be slightly higher than the adjacent teeth. As long as the root is not visible, there is no problem. To avoid any gum recession, be careful with your tooth brus...  Read Full »

Is a post required for my root canal treated tooth?

Query: Hi,Could you please review the attached photos and x-ray taken before treatment, post root canal and post temporary filing. Please let me know whether a post is required. Or is core filling with crown sufficient?  Read Full »

Dr. Naveen Thomas

Answer: Hi, Welcome to By looking at your pictures (attachment removed to protect patient identity), it seems that there is an adequate original tooth structure for placement of crown without a post. You can also do away with the post if you need to. The post gives additional support to your te...  Read Full »

Can a decayed tooth be saved?

Query: Hi doctor,I am dealing with a big problem. Over the years my teeth have been slowly decaying. I was not big on brushing and now my molars are completely messed up. One of them is basically gone with a very dark color hole in it. The other molar is slowly getting to that point and it is about halfway...  Read Full »

Dr. Naveen Thomas

Answer: Hello, Welcome to The one grossly decayed tooth can be saved if you ask your dentist to do root canal treatment on it. Root canal treatment followed by a metal post in it and ceramic crown over it will help in saving the tooth. If you cannot afford the treatment, then the only solution ...  Read Full »

My root canal filling came out. Pease help.

Query: Hello doctor, I had a root canal done for a tooth, a couple of months ago. My crown came out 8 days back. I did not go back to the dentist, but now a screw came out my tooth. What does this mean? When should I visit a dentist?  Read Full »

Dr. Naveen Thomas

Answer: Hi, Welcome to First of all, I would like to explain the treatment that has been done to your tooth according to the details provided by you: Your tooth has been root canal treated. Root canal treatment is mostly done to a tooth when the decay has reached the innermost layer of the toot...  Read Full »

Can a post be done after root canal treatment in my tooth?

Query: Hi doctor, I was suffering from molar pain for the past two weeks and then decided to see a doctor. One of my molars decayed and I needed a root canal. But here is a thing, my tooth is very very short for a crown, it is between 1 and 2 mm in height. Is it fine to just put a post and then refill the...  Read Full »

Dr. Tooba Qazi

Answer: Hi, Welcome to If your root canal is being in process and the crown length is very low, it is best to have post and core done on it after a final step of the root canal. This will strengthen your tooth and it will last long for like 10 years or more. If you do not get the post and cor...  Read Full »

Portion of exposed capped tooth is loose. What to do?

Query: Hi doctor, I had a root canal and post cap done about 15 years back and the cap fell off about 14 years back leaving the original tooth exposed. Well a portion of the original exposed tooth became loose this morning and I am wondering if I can pull this piece out without any nerve pain or possibly ...  Read Full »

Dr. Geethanjali Sadasivam

Answer: Hi, Welcome to I have read through your complaint and the relevant details. The loosened portion of the tooth should be the filling done in the tooth after the root canals are filled.This is called the core material. Because the tooth is exposed for a quite long period of time, there ...  Read Full »

How to treat my carious tooth?

Query: Hi doctor, I am 18 years old, and I am suffering from a carious tooth in premolar (upper left). Today it has got broken from the mid-portion. But the contaminated root is still present there. What can I do now? Is it better to do a root canal?  Read Full »

Dr. Muzaffer Hussain Parray

Answer: Hi, Welcome to I have gone through the query. If you want to preserve your teeth, you can go for a root canal treatment. After that, you are given a post and core procedure, and finally, you will get a crown placement. This is the best management. If it is grossly decayed with root re...  Read Full »

Should every tooth get a post and core and a crown after root canal treatment?

Query: Hello doctor,Should every root canal treated tooth get post and core and a crown? What happens if it is not done? The tooth is upper 4 with a class-2 cavity and was restored by composite.  Read Full »

Dr. Honey Nandwani

Answer: Hello, Welcome to No, all teeth are not post and core treated. However, we recommend a crown for all such teeth as the teeth become fragile after a root canal treatment. Post and core is done if there is an extensive loss of crown of tooth due to decay or fracture. In your case post ...  Read Full »

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