Will Wisdom Teeth Shift After Removing a Molar? Key Insights

After the extraction of a molar, will the wisdom tooth move?

Hello Doctor: A few days ago, I visited the clinic due to a cavity in the molar in front of my upper wisdom tooth.
Although it doesn't usually hurt, the doctor recommended extraction because the cavity is large (about 1/4 the size of the tooth after excavation), and my wisdom tooth is still erupting.
If I have it extracted early, there is a 90% chance that the wisdom tooth will naturally move into the gap to fill the space, which also addresses the issue of insufficient space for the wisdom tooth to grow.

I would like to ask, without relying on orthodontic forces, if a wisdom tooth that has erupted halfway still has significant movement potential? During the movement of the wisdom tooth, will the positions of the other teeth shift? Additionally, if it is possible to perform a filling or root canal treatment, should I first fill the cavity and see how long it lasts, or should I take advantage of the wisdom tooth's eruption and have it extracted quickly? I feel hesitant to extract the tooth hastily, but I am also worried that if the wisdom tooth does not erupt properly, I may have to extract it, and the affected molar may not be salvageable...
Thank you for taking the time to read and answer my questions!

Xiao Jun, 20~29 year old female. Ask Date: 2016/03/20

Dr. Zeng Guanghui reply Dentistry

1.
If the large molar in front of the upper wisdom tooth has extensive decay that cannot be filled, extraction of the molar may be considered to create space for the posterior wisdom tooth to gradually emerge and fill the gap.
2.
If there is space in front of the wisdom tooth and the individual is still in their teenage years, there is a significant chance that the wisdom tooth will erupt.
3.
If considering filling the large molar, it is essential to have a dentist assess whether the filling can be securely placed and how long it will last.
Additionally, it should be determined whether to fill the molar.
If a secure filling is not feasible, it is recommended to extract the molar to allow the wisdom tooth to have space to grow.

Reply Date: 2016/03/20

More Info

When it comes to wisdom teeth and their potential impact on adjacent teeth after removal, there are several key insights to consider. Wisdom teeth, or third molars, often become problematic due to impaction, crowding, or decay, leading to the recommendation for extraction. Your situation highlights a common concern regarding the shifting of teeth following the removal of a molar, particularly when wisdom teeth are involved.

1. Will Wisdom Teeth Shift After Removing a Molar?
Yes, the removal of a molar can lead to shifting of adjacent teeth. When a tooth is extracted, the surrounding teeth may begin to drift into the empty space. This is particularly true for wisdom teeth, which can exert pressure on the adjacent molars. If the wisdom tooth is partially erupted and still growing, it may have the potential to move into the space left by the extracted molar. However, the degree of movement depends on various factors, including the age of the patient, the position of the teeth, and the overall dental health.

2. Impact on Other Teeth During Wisdom Tooth Movement:
If the wisdom tooth is actively growing and has erupted partially, it can indeed shift into the space left by the extracted molar. This movement can cause adjacent teeth to become misaligned or shift out of their original positions. If the wisdom tooth is not properly aligned, it may also lead to further complications, such as crowding or bite issues. Therefore, monitoring the situation closely after extraction is crucial.

3. Should You Extract or Treat the Affected Molar?
In your case, where the upper molar has significant decay, the decision to extract or treat it should be made carefully. If the decay is extensive and the tooth is unlikely to be saved through restorative procedures like fillings or root canals, extraction may be the best option. However, if there is a chance to save the tooth, it might be worth considering treatment first. This allows you to evaluate how the wisdom tooth develops and whether it can fill the space effectively.

4. Timing of Extraction vs. Treatment:
If you choose to treat the decayed molar, it is essential to monitor the situation closely. If the wisdom tooth is still developing and you can manage the decay effectively, you might opt to treat it first and see how the situation evolves. However, if the wisdom tooth is likely to cause further issues or if the molar's condition worsens, it may be prudent to extract the wisdom tooth sooner rather than later.

5. Consultation with a Dental Professional:
Given the complexities involved, it is advisable to have a thorough discussion with your dentist or an oral surgeon. They can provide insights based on X-rays and clinical examinations, helping you weigh the risks and benefits of extraction versus treatment. They can also discuss the potential for orthodontic intervention if necessary, which may help in maintaining proper alignment of your teeth.

In summary, while wisdom teeth can shift after the removal of a molar, the extent of this movement varies. If you are facing a decision regarding extraction or treatment, it is crucial to consider the long-term implications for your dental health and consult with a professional who can guide you through the best course of action.

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