Should I Crown or Extract My First Molar for Orthodontics? - Dentistry

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Should I get a crown for my first molar to continue using it, or should I have it extracted for an implant or orthodontic treatment?


I would like to ask the doctor, I have had all four wisdom teeth extracted, and three months ago, I completed root canal treatment on my lower right first molar.
At that time, the dentist informed me that "the bone inside this tooth is damaged, and it is recommended not to place a crown yet, as it may not be effective after six months, and ultimately, it may need to be extracted." Now, I am considering orthodontic treatment for my entire mouth, and I have been advised to extract this problematic tooth and not to proceed with an implant, but rather to focus on orthodontics.
If I were to extract all four first molars for the purpose of orthodontic treatment, what potential impacts or considerations should I be aware of for my future?

Mei Mei, 20~29 year old female. Ask Date: 2020/11/29

Dr. Huang Tingfang reply Dentistry


Dear Miss Mei Mei: Hello! In fact, orthodontists will consider everything comprehensively.
They may recommend extracting unhealthy teeth to ensure that the remaining teeth are healthy after orthodontic treatment.
It is important to respect the doctor's advice! If you have any doubts, you can seek a second opinion! Wishing you all the best!

Reply Date: 2020/11/29

More Info


When considering whether to crown or extract your first molar for orthodontic purposes, there are several factors to take into account. Your situation involves a previously treated tooth that has experienced bone damage, and your dentist has advised against crowning it due to concerns about its long-term viability. This is a common dilemma faced by many patients, especially when planning for orthodontic treatment.

Firstly, it’s essential to understand the role of the first molars in dental health and function. These teeth are crucial for chewing and maintaining proper alignment of the other teeth. If they are extracted, it can lead to a shift in your bite, which may cause further dental issues down the line. The loss of these teeth can also lead to bone loss in the jaw, as teeth stimulate the bone and keep it healthy. This is particularly important to consider if you are planning to undergo orthodontic treatment, as the alignment of your teeth and jaw is critical for achieving the desired results.

If your dentist has suggested extracting the first molar and not replacing it with an implant, it’s crucial to discuss the implications of this decision. Extracting a tooth can lead to the adjacent teeth shifting into the empty space, which can create misalignment and affect your overall bite. This can complicate orthodontic treatment and may require additional adjustments or even further extractions in the future.

On the other hand, if you choose to crown the tooth, it may provide the necessary support for your orthodontic treatment. Crowning can help restore the tooth's function and protect it from further damage. However, if the underlying bone structure is compromised, the success of the crown may be limited, and your dentist's concerns about the tooth's longevity are valid.

In terms of orthodontics, if you are considering full mouth braces, it’s essential to have a stable foundation. The first molars play a significant role in anchoring the orthodontic forces applied during treatment. If they are extracted, you may need to consider how this will affect the overall treatment plan. Your orthodontist may need to make adjustments to accommodate the changes in your bite and alignment.

Ultimately, the decision should be made collaboratively with your dental care team. It’s advisable to seek a second opinion from an orthodontist who can assess your specific situation and provide insights into how the extraction or crowning of your first molar will impact your orthodontic goals. They can also discuss alternative options, such as temporary anchorage devices or other orthodontic strategies that may allow you to keep your molar while still achieving the desired alignment.

In conclusion, the choice between crowning or extracting your first molar for orthodontics is not straightforward and requires careful consideration of your dental health, the condition of the tooth, and your long-term goals. Engaging in open discussions with your dentist and orthodontist will help you make an informed decision that aligns with your overall dental health and orthodontic needs.

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