Hard White Bumps Behind Wisdom Teeth: Causes and Solutions

There is a small, hard, white bump behind the wisdom tooth?

There is a white bump growing behind my lower right wisdom tooth.
It doesn't hurt when I touch it with my tongue, and it has been getting larger over the past week.
Initially, I thought it was an abscess, but I later realized that it feels hard inside.
What could this issue be?

Miss Hong, 20~29 year old female. Ask Date: 2016/03/24

Dr. Zeng Guanghui reply Dentistry

The above situation is likely due to inflammation and infection of the gum tissue surrounding the wisdom tooth, combined with frictional irritation, leading to excessive keratinization of the mucosa.
It is advisable to consult a dentist for diagnosis and treatment, and if necessary, to have the wisdom tooth extracted.

Reply Date: 2016/03/24

More Info

The presence of a hard white bump behind your lower right wisdom tooth can be concerning, and it is essential to understand the possible causes and appropriate actions to take. Based on the information provided, there are several potential explanations for this condition.

Firstly, the bump could be a result of hyperkeratosis, which is a thickening of the outer layer of the oral mucosa. This often occurs due to chronic irritation or friction, possibly from the wisdom tooth itself or from food particles getting trapped in that area. The fact that it is hard and painless when touched suggests that it may not be an abscess or infection, which typically would present with tenderness and swelling.

Another possibility is the formation of a mucocele, which is a cyst that can develop when a salivary gland duct becomes blocked. Mucoceles are usually painless and can appear as soft or firm bumps in the oral cavity. They can grow larger over time but often resolve on their own. However, if the mucocele persists or causes discomfort, it may require surgical intervention.

Additionally, the bump could be related to pericoronitis, an inflammation of the gum tissue surrounding a partially erupted wisdom tooth. This condition can lead to swelling and discomfort, but if the bump is hard and not painful, it may not be the primary issue. However, if there are signs of infection, such as redness, swelling, or pus, it would be advisable to seek dental care.

In some cases, the bump could also be a fibroma, a benign tumor of connective tissue that can develop in response to irritation. Fibromas are typically firm and painless, and while they are not harmful, they may need to be removed if they cause discomfort or cosmetic concerns.

Given that the bump has been growing over a week, it is crucial to consult with a dentist or oral surgeon for a thorough examination. They may perform diagnostic imaging, such as X-rays, to evaluate the underlying structures and determine the best course of action. Depending on the diagnosis, treatment options may include monitoring the bump, surgical removal, or addressing any underlying dental issues, such as the extraction of the wisdom tooth if it is contributing to the problem.

In summary, while the hard white bump behind your wisdom tooth may not be immediately alarming, it is essential to have it evaluated by a dental professional. They can provide a definitive diagnosis and recommend appropriate treatment to ensure your oral health is maintained. Regular dental check-ups are crucial for early detection and management of any oral health issues, so do not hesitate to seek professional advice.

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