Persistent Gum Wounds: Signs and Concerns for Oral Health - Dentistry

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Gum wound


I have a crack between my teeth that started in April due to eating.
The crack has persisted until now, and since April, the wound has remained white.
When I poke it with a toothpick, it feels hard, and it is still like this.
I found information online stating that a wound that does not heal for a long time and is white could possibly be oral cancer.
Could this be the case for me?

Youzi, 20~29 year old female. Ask Date: 2013/11/25

Dr. Zeng Guanghui reply Dentistry


Hello: If there is a crack between the teeth, and the crack is on the enamel, it is important to observe the size of the crack and whether the damaged enamel can be repaired.
If the crack (wound) on the gums is caused by the sharp edges of the teeth, it is necessary to smooth the sharp edges of the teeth.
It is advisable to consult a dentist for further examination.
Wishing you good health.

Reply Date: 2013/11/25

More Info


Persistent gum wounds, especially those that do not heal over an extended period, can be a cause for concern and warrant careful evaluation. The situation you described, where a crack or wound between your teeth has remained unchanged since April and appears white and hard, raises several important considerations regarding oral health.

Firstly, it is essential to understand that wounds in the oral cavity can take time to heal, especially if they are subjected to constant irritation from food, brushing, or other activities. However, a wound that persists for several months without improvement should not be ignored. The white appearance of the wound may indicate several things, including the presence of necrotic tissue, a buildup of keratin, or even a potential infection.

One of the more serious concerns with a non-healing oral wound is the possibility of oral cancer. While not all persistent wounds are cancerous, it is crucial to rule out this possibility, especially if you have risk factors such as tobacco use, excessive alcohol consumption, or a history of sun exposure to the lips. Oral cancer can present as a sore that does not heal, a lump, or a white or red patch in the mouth. If you have been experiencing any additional symptoms such as difficulty swallowing, persistent pain, or changes in taste, these could also be indicators that warrant further investigation.

In addition to cancer, other conditions could explain your symptoms. For instance, chronic irritation from dental appliances, misaligned teeth, or even habits such as cheek biting can lead to persistent wounds. Conditions such as oral lichen planus, a chronic inflammatory condition, can also cause white patches in the mouth and may be mistaken for cancerous lesions. Additionally, infections such as herpes simplex virus can lead to painful sores that may not heal properly.

Given the duration and nature of your symptoms, it is highly advisable to seek a thorough evaluation from a dental professional or an oral surgeon. They can perform a clinical examination and may recommend further diagnostic tests, such as a biopsy, to determine the exact nature of the lesion. A biopsy involves taking a small sample of the tissue for laboratory analysis, which can provide definitive answers regarding the presence of cancer or other pathological conditions.

In the meantime, maintaining good oral hygiene is crucial. Gently brushing your teeth and using an antimicrobial mouthwash can help reduce the risk of infection and promote healing. Avoiding irritants such as spicy or acidic foods may also be beneficial.

In summary, while not all persistent oral wounds are indicative of cancer, the combination of a long-lasting wound, its appearance, and any accompanying symptoms necessitates a professional evaluation. Early diagnosis and intervention are key to managing any potential issues effectively. Please prioritize scheduling an appointment with a dental professional to address your concerns and ensure your oral health is safeguarded.

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