A severe toothache, swelling in your face, or a sudden foul taste in your mouth can signal more than a minor dental issue. These symptoms sometimes point to a tooth abscess—a bacterial infection that requires professional treatment.
At Columbia Smiles Family Dentistry & Prosthodontics, Dr. Michael Hsu and team diagnose and treat dental infections for patients throughout Howard County and throughout Central Maryland. Recognizing the signs of a tooth abscess early can help you get treatment before the infection spreads.
If you notice persistent tooth pain, swelling, or unusual symptoms in your mouth, a dentist should evaluate the problem as soon as possible.
What is a tooth abscess?
A tooth abscess is a pocket of pus caused by a bacterial infection. The infection usually develops when bacteria reach the inner part of the tooth, called the dental pulp.
There are two common types of dental abscesses:
- Periapical abscess, which forms at the tip of the tooth root
- Periodontal abscess, which develops in the gums beside a tooth root
Both types can cause significant pain and swelling. When the infection remains untreated, bacteria can spread beyond the tooth to nearby tissues or other parts of the body. According to Mayo Clinic, untreated dental abscesses can lead to serious or even life-threatening complications if the infection spreads.
A dentist needs to treat the infection to stop it from progressing.
Common causes of tooth abscesses
Most tooth abscesses begin when bacteria enter the pulp inside a tooth. Several dental problems can allow bacteria to reach this sensitive tissue.
One of the most common causes is untreated cavities. When tooth decay progresses deep into the tooth, bacteria can infect the pulp. Early warning signs may include signs of tooth decay, such as visible enamel damage or persistent discomfort.
Cracked or chipped teeth can also allow bacteria to enter the tooth. Even small fractures create openings where bacteria can reach the inner structures of the tooth.
Gum disease can lead to abscesses as well. Advanced gum infections create pockets where bacteria collect around the teeth. Keeping up with your oral hygiene and taking steps to prevent gum disease lowers the risk of these infections.
Other factors that may contribute to abscess formation include:
- Poor oral hygiene habits
- Delayed dental treatment
- Failed dental restorations
- A weakened immune system
Addressing dental problems early helps prevent infections from developing inside the tooth.
Warning signs of a tooth abscess
Many people first notice a tooth abscess through persistent dental pain. The pain often feels throbbing and may spread to the jaw, ear, or neck.
Other symptoms of tooth abscesses may include:
- Sensitivity to hot or cold foods and beverages
- Pain when chewing or biting
- Swelling in the face, cheek, or jaw
- Tender lymph nodes in the neck or jaw
- Fever or feeling unwell
- A foul taste or odor in the mouth
- A small bump on the gums that may release fluid
Some people also notice worsening tooth sensitivity when pressure is placed on the affected tooth.
Dental infections usually start small but worsen over time. Common symptoms include throbbing pain, temperature sensitivity, swelling, fever, and swollen lymph nodes.
If you notice these symptoms, schedule a dental evaluation immediately.
When to seek emergency dental care
Some abscess symptoms suggest that the infection may be spreading beyond the tooth.
Seek immediate dental or medical care if you experience:
- Severe swelling in the face, jaw, or neck
- Difficulty breathing or swallowing
- A high fever
- Swelling that spreads toward the eye or neck
- Severe pain that does not improve with medication
These symptoms can indicate that the infection has spread deeper into surrounding tissues. Swelling of the face or neck, fever, and breathing or swallowing difficulty may signal a spreading infection that requires emergency care.
In some situations, infections can follow an injury to the mouth. A dentist may also evaluate possible dental trauma to determine whether damage to the tooth contributed to the infection.
How dentists treat tooth abscesses
Treating a tooth abscess requires removing the infection and addressing its cause. Dr. Michael Hsu and team at Columbia Smiles Family Dentistry & Prosthodontics use diagnostic imaging and clinical evaluation to determine the most appropriate treatment.
Depending on the situation, treatment may include:
Abscess drainage
A dentist creates a small opening to drain the infected fluid and clean the area.
Root canal treatment
When the tooth can be preserved, root canal therapy removes infected pulp tissue from inside the tooth and seals the space to prevent reinfection.
Tooth extraction
If the tooth cannot be saved, removal may stop the infection from spreading to the surrounding tissues.
Antibiotics
Dentists sometimes prescribe antibiotics to control infection and reduce swelling.
Antibiotics alone cannot eliminate a tooth abscess. The source of the infection must be treated directly.
Persistent pain or infection may also signal that you need a root canal, especially when symptoms include severe sensitivity, swelling, or ongoing tooth pain.
Preventing tooth abscesses
Preventing dental infections starts with consistent oral care and early treatment of dental problems.
Daily habits that protect your teeth include:
- Brushing twice a day with fluoride toothpaste
- Flossing daily
- Visiting your dentist for routine exams and cleanings
- Treating cavities early
- Repairing damaged dental work promptly
- Strong preventive habits reduce the risk of infection. Taking steps to prevent cavities and maintaining good dental hygiene helps keep harmful bacteria under control.
Regular dental visits also allow your dentist to identify potential problems before they develop into infections.
Get help with tooth abscesses at Columbia Smiles
Dental infections can worsen quickly, so don’t ignore symptoms such as persistent tooth pain, swelling, or drainage from the gums.
At Columbia Smiles Family Dentistry & Prosthodontics, Dr. Michael Hsu and team provide comprehensive diagnostic care and treatment for dental infections. We have served patients in Howard County and beyond for more than 35 years, earning recognition such as Howard Magazine’s Best of Howard awards while helping generations of local families maintain their oral health.
If you suspect a dental abscess or infection, contact the office at 410.690.4855 or reach out online to schedule an appointment and have a dentist evaluate your symptoms.
Frequently asked questions about tooth abscesses
No. A tooth abscess will not heal without dental treatment. Even if the abscess drains and the pain improves temporarily, the infection remains inside the tooth or surrounding tissues.
Without treatment, the infection can spread to the jaw, head, neck, or other areas of the body.
Antibiotics can reduce bacterial infection and swelling, but they cannot eliminate a tooth abscess by themselves.
A dentist must remove the infected tissue through drainage, root canal treatment, or extraction to resolve the problem completely.
Do not delay treatment. A tooth abscess is an active infection that can worsen quickly and spread to surrounding tissues.
If symptoms such as swelling, fever, or difficulty breathing develop, seek emergency medical care immediately.
A tooth abscess often appears as a swollen, red bump on the gums near the infected tooth. The bump may contain a white or yellow center where pus collects.
You may also notice inflamed gum tissue or swelling on the affected side of the face.
Do not attempt to pop or drain a tooth abscess at home. Doing so can spread bacteria and worsen the infection.
A dental professional should perform abscess drainage in a sterile clinical setting to prevent complications.
Find relief for a tooth abscess
If you’re experiencing ongoing tooth pain, swelling, or other unusual symptoms, don’t delay seeking professional care. The dental team at Columbia Smiles Family Dentistry & Prosthodontics in Columbia, MD is ready to assist you.
Book your appointment today for a thorough evaluation and a customized treatment plan designed to protect your natural tooth.







