Should You Remove an Extra Tooth Penetrating the Sinus? - Dentistry

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Should the upper gum teeth that penetrate the sinus be extracted?


Hello Doctor: I have a noticeable supernumerary tooth that can be palpated within the gum of my upper left jaw.
A CT scan revealed that this tooth penetrates the maxillary sinus, but I have no discomfort.
Recently, I started orthodontic treatment, and my orthodontist has not indicated a need for extraction.
However, the oral surgeon suggested removing it to prevent potential cyst formation in the future.
My question is, if the tooth penetrates the maxillary sinus, what complications might arise during extraction? For example, could it lead to sinusitis? I have a history of allergies and often sneeze, so I am concerned about the impact.
Additionally, I would like to know the likelihood of cyst formation if this supernumerary tooth is not extracted.
I want to evaluate whether extraction or retention is the better option.
Thank you, Doctor.

Mo Mo, 30~39 year old female. Ask Date: 2022/11/08

Dr. Lin Jiayong reply Dentistry


Hello: It is recommended to consult the oral surgery department at a medical center for confirmation.
If the tooth is close to the sinus, it is highly likely that general anesthesia will be required for extraction, and it may also involve a referral to an otolaryngologist.
Therefore, a thorough and careful evaluation of the pros and cons of the tooth extraction should be conducted before making a decision!

Reply Date: 2022/11/08

More Info


When considering the removal of an extra tooth that has penetrated the sinus, several factors must be taken into account, including the potential risks and benefits of the procedure, as well as the implications of leaving the tooth in place.

Firstly, the presence of a supernumerary tooth (an extra tooth) that has penetrated the sinus can lead to various complications over time. While you currently do not experience any discomfort, the risk of developing issues such as cysts or infections in the future is a valid concern. The recommendation from your oral surgeon to remove the tooth is based on the potential for these complications, which can include the formation of a dental cyst or sinusitis, particularly if the tooth is not properly aligned or if it becomes impacted.

Regarding the potential consequences of removing the tooth, there are some risks associated with the procedure. These can include:
1. Sinus Complications: The proximity of the tooth to the sinus cavity means that there is a risk of creating a communication between the oral cavity and the sinus, which could lead to sinus infections (sinusitis). However, this is generally a manageable risk, and your oral surgeon will take precautions to minimize this possibility.

2. Postoperative Discomfort: After the extraction, you may experience some swelling, bruising, or discomfort in the area. This is typical for any surgical procedure, but it can be managed with pain relief medications.

3. Nasal Symptoms: Given your history of allergies and frequent sneezing, there is a possibility that the procedure could temporarily exacerbate nasal symptoms. However, most patients do not experience long-term issues related to nasal congestion or sinusitis following the removal of a tooth from the sinus area.

4. Risk of Cyst Formation: If the tooth is left in place, there is a risk of developing a cyst around it. The likelihood of this occurring can vary based on individual factors, including the tooth's position and your oral health. While it is difficult to quantify the exact risk without further clinical evaluation, it is a concern that should be discussed with your dentist or oral surgeon.

In terms of evaluating whether to proceed with the extraction or to leave the tooth in place, consider the following:
- Consultation with Specialists: It may be beneficial to have a multidisciplinary discussion involving your orthodontist and oral surgeon. They can provide insights based on your specific case and treatment plan.

- Monitoring: If you choose to leave the tooth in place, regular monitoring through dental examinations and imaging (like X-rays or CT scans) can help detect any changes or complications early.

- Personal Health Considerations: Given your allergy history, it is essential to discuss with your healthcare provider how the procedure might impact your allergies and any pre-existing conditions.

In conclusion, while the extraction of the supernumerary tooth that has penetrated the sinus carries some risks, the potential for future complications from leaving it in place may outweigh those risks. It is crucial to have a thorough discussion with your dental care team to weigh the pros and cons based on your unique situation. Ultimately, the decision should be made collaboratively, considering your health, comfort, and long-term dental health.

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