Tongue and Tooth Friction: Concerns and Solutions - Dentistry

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Friction between the tongue and teeth?


Hello Doctor: About last November, I had a deep cavity in my molar, and the doctor explained that I needed a root canal treatment.
However, I experienced recurrent inflammation during the process, and later underwent microscopic root canal therapy.
I just had my crown placed last week.
Due to the root canal treatment, my original tooth had to be cut in half for the procedure.
Over this past year, because of the tooth being cut, the edge of my tongue has been constantly rubbing against the tooth, causing a painful, burning, and tingling sensation.
I have been applying oral ointment daily and have reported this issue to my doctor, who smoothed the edges a bit, which helped slightly.
However, the doctor mentioned that for complete improvement, I would need to wait until the crown was fully placed.
I initially thought that after getting the crown last week, the issue of my tongue scraping against the tooth would improve, but this week, I still find that my tongue is being scraped while speaking.
The doctor said this is due to the occlusion not being adjusted yet and advised me to monitor the situation.
However, my tongue continues to be scraped, and it is quite painful.
The doctor has examined it and said it seems fine.
But I have been experiencing this condition for a year now, and I am worried that it could develop into oral cancer...
(I have been in pain for quite a while, so I am very concerned.) Thank you, Doctor!!!

Xu, 20~29 year old female. Ask Date: 2023/10/20

Dr. Lin Jiayong reply Dentistry


Hello: It is recommended to consult with the oral surgery or oral diagnosis department at a medical center.
If necessary, a biopsy of the tongue mucosa may be performed.
Inappropriate prosthetics or repeated long-term irritation can indeed trigger the development of oral cancer.

Reply Date: 2023/10/20

More Info


Understanding the relationship between dental issues and tongue discomfort is crucial for maintaining oral health. Your situation, where the tongue is frequently irritated due to friction against a tooth, is not uncommon, especially after significant dental procedures like root canal treatment and the placement of crowns.
When a tooth undergoes extensive treatment, such as a root canal, it may be reshaped or reduced in size, which can alter the way your teeth come together (occlusion). If the remaining tooth structure is sharp or uneven, it can lead to friction against the tongue, causing pain, discomfort, and even the sensation of burning or tingling. This is particularly true if the tooth has been significantly altered, as in your case, where the tooth was "cut in half" for treatment.

The fact that you are experiencing persistent discomfort even after the crown placement suggests that the occlusion may still be off. When the bite is not aligned properly, it can lead to additional pressure on the tongue and surrounding tissues, exacerbating the irritation. Your dentist's recommendation to observe the situation after the crown placement is a common approach, as it may take some time for the bite to feel normal again. However, if the discomfort persists, further adjustments may be necessary.

Regarding your concern about the potential development of oral cancer, it is important to note that while chronic irritation can lead to changes in the oral mucosa, the risk of developing cancer from such irritation is generally low. However, it is essential to monitor any persistent lesions, changes in the texture of the tongue, or other unusual symptoms. If you notice any significant changes, it is advisable to consult with a healthcare professional for a thorough examination.

In the meantime, here are some strategies to alleviate your discomfort:
1. Regular Dental Follow-ups: Continue to communicate with your dentist about your symptoms. If the irritation does not improve, they may need to make further adjustments to your crown or evaluate the surrounding teeth for any issues.

2. Oral Hygiene: Maintain excellent oral hygiene to prevent any additional irritation or infection. Use a soft-bristled toothbrush and consider using a gentle mouthwash that does not contain alcohol, as alcohol can further irritate sensitive tissues.

3. Avoid Irritants: Try to avoid spicy, acidic, or very hot foods that may exacerbate the irritation on your tongue. Soft foods may be easier to manage while you are experiencing discomfort.

4. Topical Treatments: Continue using oral gels or ointments as recommended by your dentist to soothe the irritated area. These can provide temporary relief from pain and discomfort.

5. Stress Management: If you find yourself clenching or grinding your teeth (bruxism), which can happen unconsciously, consider stress management techniques or discuss with your dentist about a night guard to protect your teeth and reduce tension.

6. Monitor Symptoms: Keep track of your symptoms, including any changes in the appearance of your tongue or the nature of the pain. If you notice any new symptoms, such as swelling, persistent sores, or changes in taste, seek medical advice promptly.

In conclusion, while your concerns about tongue irritation and potential long-term effects are valid, it is essential to focus on proper dental care and communication with your healthcare provider. With appropriate management and adjustments, you should be able to find relief from your symptoms. If you have any further concerns, do not hesitate to reach out to your dentist or a specialist for additional guidance.

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