Do You Really Need a Crown After Root Canal Treatment?

Teeth after root canal treatment

Last summer, I underwent root canal treatment on two upper molars.
At that time, the dentist did not mention that I might need crowns after the root canal; they only performed the nerve extraction and filling.
A year later, I noticed that one of the molars had slightly darkened, and upon examination, the dentist said that the darkened tooth needs a crown, while the other one can be monitored for now.
Throughout the year since my root canal, I have not experienced any discomfort, so I would like to know if getting a crown is absolutely necessary.
For a student, this is a significant expense.
Additionally, the dentist mentioned that the gum around the darkened molar is slightly inflamed.
If I choose not to get a crown, is it possible to perform another root canal treatment on that tooth?

Ms. Chen, 20~29 year old female. Ask Date: 2016/06/30

Dr. Lin Jiayong reply Dentistry

Dear Ms.
Chen,
1.
Whether a crown is needed for a tooth after root canal treatment depends on the structural condition of that tooth.
If there are aesthetic concerns due to tooth discoloration, a crown may also be considered.
2.
If tooth discoloration or even gum discoloration occurs due to root canal treatment, undergoing another root canal procedure will not improve the situation.
Therefore, if you do not mind the discoloration and the tooth does not exhibit symptoms of swelling or abscess, and is functioning normally for chewing, you may consider temporarily forgoing the crown.
However, it is still advisable to discuss a long-term treatment plan with your dentist at a medical facility.
Wishing you peace and health.
Sincerely,
Dr.
Lin Chia-Yung
Director of Dentistry, Taichung Hospital, Ministry of Health and Welfare

Reply Date: 2016/06/30

More Info

After undergoing root canal treatment, the question of whether a crown is necessary often arises. The primary purpose of a crown is to provide structural support and protection to a tooth that has been compromised due to decay or trauma, especially after a root canal procedure. When a tooth undergoes root canal treatment, it typically loses a significant amount of its structure, which can make it more susceptible to fractures and other forms of damage.

In your case, having had two upper premolars treated with root canals, it is understandable to be concerned about the necessity of crowns, especially given the financial implications as a student. However, there are several important factors to consider regarding the need for a crown after root canal therapy.

1. Tooth Structure and Strength: After a root canal, the tooth is often left with a large filling or a significant portion of the tooth structure missing. This makes the tooth weaker and more prone to fractures, particularly when chewing. A crown can help restore the tooth's strength and protect it from further damage.

2. Aesthetic Considerations: The discoloration you mentioned in one of your premolars is a common occurrence after root canal treatment. The tooth may darken due to the breakdown of blood vessels and nerves inside the tooth. A crown can not only restore the tooth's strength but also improve its appearance, especially if it is visible when you smile.

3. Inflammation and Infection Risks: The inflammation of the gums around the darkened tooth could indicate ongoing issues. If the tooth is not adequately protected, there is a risk of reinfection or further complications, which could necessitate additional treatments, including another root canal or even extraction.
4. Long-term Cost-effectiveness: While the upfront cost of a crown may seem high, it can be more cost-effective in the long run. Protecting the tooth with a crown can prevent the need for more extensive and expensive procedures later, such as extractions or implants.

5. Alternatives to Crowns: If you are concerned about the cost of a crown, it is worth discussing with your dentist the possibility of alternative treatments. While redoing the root canal may be an option, it is essential to understand that this may not address the underlying structural weaknesses of the tooth.
6. Communication with Your Dentist: It is crucial to have an open dialogue with your dentist about your concerns, including financial constraints. They may be able to offer payment plans or alternative solutions that can help you manage the costs while ensuring your dental health is not compromised.

In conclusion, while it may seem like an additional expense, getting a crown after root canal treatment is generally recommended to protect the tooth and maintain its function. Given the potential for complications and the importance of preserving your natural teeth, it is advisable to follow your dentist's recommendations regarding the crown. If you have further concerns, seeking a second opinion from another dental professional may also provide additional insights and options.

Similar Q&A

Do You Really Need a Crown After Root Canal Treatment?

I underwent root canal treatment at the end of January (for an anterior tooth, likely a first premolar or canine, but I can't quite remember). At that time, the endodontist recommended a crown; however, due to the bone loss observed in the X-ray caused by an abscess, it was ...

Dr. Lin Jiayong reply Dentistry
Hello, if the bone underneath the tooth is deficient and does not heal, there may be concerns about the stability of the dental crown once it is placed. It is recommended that you visit the endodontics department at a medical center to discuss a detailed treatment plan for that t...

Do Wisdom Teeth Need Crowns After Root Canal Treatment?

Is it necessary to place a crown on a wisdom tooth that has undergone root canal treatment? My dentist mentioned that although the wisdom tooth has had a root canal, it is prone to crown failure. Is this true?

Dr. Lin Jiayong reply Dentistry
Hello: In most general situations, it is not recommended to perform extensive treatment on wisdom teeth. If the dentist treating you advises against it, regular monitoring and check-ups are sufficient. Thank you!

Do You Really Need Dentures After Root Canal Treatment?

I have two molars that have undergone root canal treatment. I need to get dentures. Is it necessary? If I make a strong effort to protect my teeth by brushing and having regular check-ups, can I avoid getting dentures?

Dr. Wu Jinjun reply Dentistry
A tooth that has undergone root canal treatment should be crowned; otherwise, it is prone to fracture when biting down on hard objects.

After Braces: Discovering the Need for Root Canal Treatment

At the beginning of January, I fractured my front tooth due to a motorcycle accident. I received treatment and had five crowns placed in early October (which are now fixed). Recently, I noticed that one of the teeth behind the crowns still hurts a little when it touches the crown...

Dr. Huang Tingfang reply Dentistry
Dear Ms. Hsu, Hello! Generally, if a traumatized tooth is painful upon contact, it usually requires root canal treatment (as determined by X-ray). After root canal treatment, a dental crown is necessary for protection. If there is already a crown, a small hole can be drilled fo...