The hidden danger of dental abscesses
TL;DR: A dental abscess is a pocket of infection that forms at the root of a tooth or in the surrounding gum tissue. Left untreated, it can spread to the jaw, neck and even the brain. Early treatment from an endodontist—such as root canal therapy—can stop the infection and save your natural tooth.
That dull ache in your tooth might feel manageable right now. Maybe you're taking ibuprofen, hoping it'll pass. But if there's an infection brewing at the root of your tooth, waiting it out isn't just uncomfortable—it can be genuinely dangerous.
Dental abscesses are one of the most serious conditions we treat here at West Fort Worth Endodontics. They don't resolve on their own, and the longer they go untreated, the greater the risk to your overall health. Here's what you need to know.
What is a dental abscess, and what causes one?
A dental abscess is a pocket of pus caused by a bacterial infection. There are two main types:
Periapical abscess: This forms at the tip of the tooth's root and is typically caused by an untreated cavity, a cracked tooth or previous dental trauma that allows bacteria to reach the inner pulp of the tooth.
Periodontal abscess: This develops in the gum tissue next to a tooth root, often linked to gum disease.
The periapical type is the most common and the one endodontists treat most frequently. When bacteria invade the pulp—the soft tissue inside your tooth containing nerves and blood vessels—the body responds with inflammation. That pressure has nowhere to go, which is what causes the intense, throbbing pain many patients describe when they call our office.
Understanding the key parts of your tooth helps explain why an abscess can escalate so quickly—the pulp sits deep inside a sealed structure, and once it's infected, the infection won't clear up without professional treatment.
Why are untreated abscesses so dangerous?
This is where things get serious. A dental abscess isn't just a localized tooth problem. The infection can spread.
Without treatment, bacteria from a periapical abscess can move into the jawbone, causing a condition called osteomyelitis. From there, the infection can travel to the neck, chest or—in rare but documented cases—the brain. Ludwig's angina, a life-threatening infection of the floor of the mouth, is one potential complication of an untreated dental abscess.
Even before it reaches that point, a spreading abscess can cause fever, difficulty swallowing and facial swelling. If you're experiencing any of those symptoms alongside tooth pain, treat it as a dental emergency and seek care immediately.
We often see patients who've been dealing with a random toothache for weeks before realizing something more serious is going on. Don't let that be you.
When should you see an endodontist instead of a general dentist?
Your general dentist is a great first call for many dental concerns, but a dental abscess often requires specialized care—especially when it involves the tooth's root.
Endodontists are specialists who complete two to three additional years of training beyond dental school, focusing exclusively on the inner structures of the tooth and the surrounding bone. Here at West Fort Worth Endodontics, Dr. Francisco Nieves and Dr. Alex Fitzhugh are both board-certified endodontists, which represents the highest level of excellence in endodontic practice.
If your general dentist has spotted signs of a periapical infection on an X-ray, or if you've had a root canal that doesn't seem to have fully resolved the issue, a referral to an endodontist is the right next step. You can learn more about when and why to see an endodontist on our blog.
How West Fort Worth Endodontics treats dental abscesses
At WFWE, we use advanced imaging technology—including cone beam CT (CBCT) scanning—to get a precise picture of the infection before we touch anything. This lets us see exactly where the abscess is, how far it's spread and what the surrounding bone looks like.
From there, the most common treatment for a periapical abscess is root canal therapy. We remove the infected pulp, clean and disinfect the root canals, and seal the tooth to prevent reinfection. In more complex cases, an apicoectomy may be needed to remove infected tissue at the root tip.
We also offer GentleWave® treatment, a minimally invasive root canal technology that uses multisonic fluid dynamics to clean the root canal system more thoroughly than conventional methods—with less discomfort and a lower risk of reinfection.
Our patients regularly describe their experience as far less intimidating than they expected. Dr. Nieves and Dr. Fitzhugh prioritize your comfort at every step, and our team is experienced in treating patients with dental anxiety. For a detailed walkthrough of what the process looks like, check out our guide on how RCT procedures typically go at WFWE.
Don't wait—schedule an appointment today
A dental abscess won't heal on its own. The sooner it's treated, the better the outcome for your tooth and your overall health. If you're in Fort Worth, Benbrook, Crowley, White Settlement, Aledo, Weatherford or the surrounding area and you're dealing with persistent tooth pain, swelling or sensitivity, we'd encourage you to book an appointment with our team as soon as possible.
Frequently asked questions about dental abscesses
What are the symptoms of a dental abscess?
Common symptoms include a severe, persistent toothache, sensitivity to hot or cold temperatures, swelling in the face or cheek, a fever and swollen lymph nodes in the neck or jaw. Some patients also notice a sudden rush of salty fluid in their mouth if the abscess ruptures. Even if the pain temporarily subsides after rupture, the infection is still present and requires treatment.
Can a dental abscess go away on its own?
No. A dental abscess won't resolve without professional treatment. Antibiotics may reduce the infection temporarily, but they don't eliminate the source—the infected pulp or tissue at the root. Without removing or treating that source, the infection will return.
What's the difference between a periapical abscess and a periodontal abscess?
A periapical abscess forms at the tip of a tooth's root and is usually caused by an untreated cavity, crack or dental trauma that allows bacteria into the pulp. A periodontal abscess forms in the gum tissue beside the root and is typically linked to gum disease. Endodontists most commonly treat periapical abscesses through root canal therapy.
Is a root canal the only treatment for a dental abscess?
Root canal therapy is the most common treatment, but in some cases an apicoectomy is also needed—particularly if the infection has spread to the tip of the root or if a previous root canal hasn't fully resolved the issue. Your endodontist will recommend the right treatment after reviewing your imaging.
How do I know if I need an endodontist or a general dentist for my abscess?
If your tooth pain involves the root of the tooth or if your general dentist has detected a periapical infection on an X-ray, seeing an endodontist is the appropriate next step. Endodontists specialize in exactly this type of case and have the advanced tools and training to treat it effectively. West Fort Worth Endodontics serves patients across Fort Worth and surrounding communities, including Benbrook, Crowley, Aledo and Weatherford.