Oral Mucosal Lesions: Causes and Concerns - Dentistry

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Oral mucosal ulceration


Initially, there was a lesion on the inner mucosa of the lower lip, with a parallel crack along the left and right sides of the teeth, accompanied by small fissures.
After consulting an otolaryngologist and taking medication for six days, I noticed a similar horizontal fissure on the inner side of the upper lip, but this time it was only a clearly defined line.
Recently, I have been experiencing frequent sleep disturbances, going to bed late, although I still manage to get a full seven hours of sleep.
This situation has caused me some anxiety, as I am unsure if it is due to the growth of something abnormal.
Additionally, I do not smoke or chew betel nut.

Yan, 20~29 year old female. Ask Date: 2023/03/30

Dr. Lin Jiayong reply Dentistry


Hello: If the mucosal changes are caused by cheek biting, it is recommended to use a soft occlusal splint during sleep along with muscle relaxants for improvement.

Reply Date: 2023/03/30

More Info


Understanding oral mucosal lesions is crucial for identifying underlying health issues and ensuring proper treatment. Oral mucosal lesions can manifest in various forms, including ulcers, fissures, and patches, and can be caused by a multitude of factors ranging from trauma to systemic diseases.

In your case, the presence of fissures or cracks on the inner side of the lower lip and now the upper lip could be indicative of several potential causes. One common reason for such lesions is mechanical trauma, which can occur from habits like biting the lip or from dental appliances. However, given your mention of anxiety and sleep disturbances, it is also essential to consider other factors that could contribute to mucosal lesions.

1. Nutritional Deficiencies: Deficiencies in vitamins, particularly B vitamins (like B2, B3, and B12) and vitamin C, can lead to mucosal lesions. These vitamins play a vital role in maintaining healthy mucous membranes. A balanced diet rich in fruits, vegetables, and whole grains can help mitigate these deficiencies.

2. Stress and Anxiety: Psychological factors such as stress and anxiety can lead to habits like lip biting or grinding teeth, which may exacerbate mucosal lesions. Chronic stress can also affect the immune system, making the body more susceptible to infections and inflammatory conditions.

3. Oral Hygiene: Poor oral hygiene can lead to the accumulation of bacteria and plaque, which can irritate the mucosal lining and lead to lesions. It is essential to maintain a regular oral hygiene routine, including brushing twice a day and flossing daily.

4. Systemic Conditions: Certain systemic conditions, such as autoimmune diseases (like lupus or Behçet's disease), can manifest as oral lesions. If the lesions persist or worsen, it may be advisable to consult with a healthcare provider for further evaluation, including blood tests or referrals to specialists.

5. Infections: Viral infections, such as herpes simplex virus, can cause painful lesions in the oral cavity. If you notice any accompanying symptoms, such as fever or swollen lymph nodes, it would be prudent to seek medical attention.

6. Medication Side Effects: Some medications can cause dry mouth or mucosal irritation, leading to lesions. If you have recently started any new medications, discuss these with your healthcare provider.

Given your symptoms and concerns, it would be beneficial to follow up with a healthcare professional, preferably an oral pathologist or a dentist specializing in oral medicine. They can perform a thorough examination and may recommend additional tests, such as a biopsy, if they suspect a more serious underlying condition.

In terms of management, here are some steps you can take:
- Maintain Good Oral Hygiene: Brush and floss regularly, and consider using an antibacterial mouthwash to reduce the risk of infection.

- Stay Hydrated: Drink plenty of water to keep your mouth moist and help with healing.

- Manage Stress: Engage in stress-reducing activities such as yoga, meditation, or deep-breathing exercises.

- Dietary Adjustments: Ensure you are consuming a balanced diet rich in essential vitamins and minerals.

- Monitor Symptoms: Keep track of any changes in your symptoms, and if they persist or worsen, seek medical advice promptly.

In conclusion, while oral mucosal lesions can be concerning, understanding their potential causes can help guide appropriate treatment and management. If you have ongoing concerns, do not hesitate to seek professional help to ensure your oral health is properly addressed.

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