Gum Abscesses: Causes, Symptoms, and Treatment Options - Dentistry

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After the gum abscess is burst, a piece of tissue may come out?


Hello Doctor: I have a pus-filled bump on the gum of my lower right third molar (wisdom tooth) that is very swollen and looks like it might burst soon.
It is also slightly painful.
Previously, when I underwent root canal treatment, the doctor punctured it and prescribed antibiotics (anti-inflammatory medication) for me, but it healed and then reappeared.
Due to my busy work schedule, I have not been able to complete the root canal treatment (only half was done, and I currently have a temporary filling in the cavity, which I cannot bite on, causing some pain).

One day while brushing my teeth, I accidentally burst the pus-filled bump, and it bled quite a bit.
Although there was a lot of bleeding, it did not seem to go away, so out of curiosity, I squeezed it a bit (originally just to clean up the blood, as it wouldn't stop flowing, even after rinsing).
To my surprise, a piece of tissue came out...
It was only painful while I was squeezing it, but afterward, the bleeding stopped, and I only felt slight pain.
After the bleeding stopped, the bump seemed to heal within 1-2 days, becoming flat and no longer painful or bleeding.
I thought it wouldn't come back, but about two weeks later, another similar pus-filled bump appeared.
This time, I proactively punctured it and squeezed it again, and another piece of tissue came out...
which I found a bit frightening.

Could you please explain what is happening? Should I continue to see a dentist? Thank you!

Zhen'ai bibi, 30~39 year old female. Ask Date: 2015/11/30

Dr. Zhang Xiangyuan reply Dentistry


Dear online user: Based on your description, there is an abscess on the gum of your lower right molar, and the root canal treatment has not been completed.
It is recommended that you consult a dentist for an examination and treatment of that tooth, to monitor whether the condition of the gum abscess improves and if the symptoms resolve.
An assessment should be made to determine if the tooth can be preserved.
If the tooth has not received complete treatment, inflammation may recur, as you have described.
It is advisable to seek medical attention promptly for early treatment.
Thank you for your inquiry.

Reply Date: 2015/11/30

More Info


Gum abscesses, also known as dental abscesses, are localized infections that occur in the gums or around the roots of teeth. They can be quite painful and are often accompanied by swelling, redness, and sometimes fever. Understanding the causes, symptoms, and treatment options for gum abscesses is crucial for effective management and prevention of complications.


Causes of Gum Abscesses
Gum abscesses typically arise from bacterial infections, which can occur due to several factors:
1. Poor Oral Hygiene: Accumulation of plaque and tartar can lead to gum disease (gingivitis or periodontitis), which can create pockets of infection.

2. Tooth Decay: Cavities that penetrate deep into the tooth can allow bacteria to reach the pulp, leading to infection and subsequent abscess formation.

3. Trauma: Injury to the gums or teeth can introduce bacteria, resulting in an abscess.

4. Existing Dental Procedures: As you mentioned, incomplete root canal treatments can leave bacteria trapped in the tooth, leading to recurrent infections.

5. Systemic Conditions: Conditions such as diabetes can impair the immune response, making individuals more susceptible to infections.


Symptoms of Gum Abscesses
The symptoms you described align with typical presentations of a gum abscess:
- Swelling: The area around the affected tooth or gum may appear swollen and red.

- Pain: Pain can range from mild to severe, often worsening when chewing or applying pressure.

- Pus Formation: The presence of a pus-filled sac (abscess) is common, which may rupture and drain, providing temporary relief.

- Bleeding: As you experienced, brushing or manipulating the area can lead to bleeding.

- Foul Taste or Odor: The drainage from the abscess may have an unpleasant taste or smell.

- Systemic Symptoms: In some cases, fever or malaise may occur if the infection spreads.


Treatment Options
Given your situation, it is essential to address the underlying cause of the recurrent abscesses. Here are some treatment options:
1. Complete Root Canal Treatment: Since you have only partially completed the root canal, it is crucial to finish this treatment. This procedure removes the infected pulp and seals the tooth to prevent further infection.

2. Antibiotics: While antibiotics can help manage the infection, they are not a substitute for definitive treatment like root canal therapy. It is essential to follow your dentist's recommendations regarding antibiotic use.

3. Drainage of the Abscess: If the abscess is large or painful, your dentist may need to drain it to relieve pressure and remove pus.

4. Oral Hygiene Improvement: Maintaining good oral hygiene through regular brushing, flossing, and dental check-ups can help prevent future abscesses.

5. Surgical Intervention: In some cases, if the abscess does not respond to treatment, surgical options may be necessary to remove the infected tissue or tooth.


Conclusion
It is crucial to continue seeing your dentist for further evaluation and treatment. The recurrent nature of your gum abscesses suggests that the underlying issue has not been fully addressed, and delaying treatment could lead to more severe complications, including the spread of infection. Regular dental visits and adherence to treatment plans are vital for maintaining oral health and preventing future occurrences of gum abscesses. If you experience any worsening symptoms, such as increased swelling, fever, or difficulty swallowing, seek immediate dental care.

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