Do You Need a New Root Canal Before Getting a Crown? - Dentistry

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Dental crown placement after root canal treatment?


Doctor, may I ask if I need to undergo root canal treatment again if I didn't get a crown after my root canal treatment three years ago? Occasionally, I experience apical inflammation and my gums swell, but my dentist just placed a post.

Yan, 20~29 year old female. Ask Date: 2016/06/14

Dr. Huang Zhicheng reply Dentistry


Hello: Please discuss your questions with your dentist and ensure thorough communication and understanding before proceeding with the fabrication of dentures.
Wishing you safety and health.
Sincerely, Dr.
Huang Chih-Cheng, Director of Dentistry, Taoyuan General Hospital, Ministry of Health and Welfare.

Reply Date: 2016/06/14

More Info


When considering whether you need a new root canal treatment before getting a crown, it’s essential to understand the condition of your tooth and the underlying structures. Based on your description, it sounds like you had a root canal treatment three years ago, but you have not yet had a crown placed on that tooth. You also mentioned experiencing occasional inflammation at the root tip and swelling of the gums, which could indicate that there may still be some underlying issues that need to be addressed.

In general, if a tooth has undergone root canal therapy, it is often recommended to place a crown on it to protect the tooth from fracture and restore its function. The crown acts as a protective cap that helps to maintain the integrity of the tooth structure, especially if a significant amount of tooth structure was removed during the root canal procedure. However, if there are signs of ongoing infection or inflammation, such as swelling of the gums or pain, it may be necessary to reassess the health of the tooth before proceeding with the crown.

If your tooth has been experiencing symptoms like inflammation or swelling, this could indicate that the root canal treatment was not entirely successful, or there may be a new infection. In such cases, it is crucial to consult with your dentist or an endodontist (a specialist in root canal treatment) to evaluate the condition of the tooth. They may recommend imaging studies, such as X-rays or a cone beam CT scan, to assess the status of the root and surrounding bone.

If the imaging reveals that there is an infection or if the root canal treatment has failed, a retreatment of the root canal may be necessary before placing a crown. This is because placing a crown on a tooth that has an unresolved infection could lead to further complications, including pain and the potential need for extraction.

In summary, while it is not always necessary to have a new root canal treatment before getting a crown, it is essential to evaluate the current health of the tooth. If there are any signs of infection or inflammation, it is advisable to address those issues first. Your dentist will be able to provide the best guidance based on a thorough examination and any necessary diagnostic imaging. Always communicate openly with your dental care provider about your symptoms and concerns, as they can help you make informed decisions about your dental health and treatment options.

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