Dental Abscess Treatment in Leicester
A dental abscess is a pocket of pus caused by a bacterial infection, and it's one of the clearest signals your mouth can send that something needs urgent attention. The pain is often intense and throbbing, but the real reason not to wait is what's happening beneath the surface: an abscess is an active infection that won't resolve on its own and can spread if it's left. The good news is that it's very treatable once you're seen. This page explains what an abscess is, how to recognise it, why prompt care matters, and — importantly — the warning signs that mean you should seek emergency help straightaway.
What Is a Dental Abscess?
An abscess forms when bacteria get into part of the tooth or gum and the body walls off the infection, creating a pocket of pus. Picture a blister full of infection with no easy way to drain — that trapped pressure is what causes the relentless, throbbing pain. There are two main types: a periapical abscess, which forms at the tip of the tooth's root, usually after decay or injury lets bacteria reach the nerve; and a periodontal abscess, which forms in the gum alongside the tooth, often linked to gum disease. Both need professional treatment, because the source of the infection has to be dealt with — painkillers alone only mask it.
Signs and Symptoms of a Dental Abscess
The classic sign is a severe, throbbing pain that can come on suddenly and may radiate to your jaw, ear or neck. Alongside it you might notice swelling in the gum, face or jaw, tenderness when biting, sensitivity to hot and cold, a bad taste or smell in your mouth, and a tender lump on the gum. Sometimes the abscess bursts on its own, releasing a rush of foul-tasting fluid and a sudden drop in pain — but don't be reassured by that, because the infection is still there and still needs treating. You may also feel generally unwell, with a raised temperature. Any of these signs is a reason to contact us promptly.
When a Dental Abscess Becomes an Emergency
Most abscesses need prompt care, but some become genuinely dangerous if the infection starts to spread — and knowing the red flags could matter enormously.
Seek Urgent Medical Help If You Have:
Swelling that is spreading across your face or into your neck, difficulty breathing or swallowing, a swelling that's closing your eye, a high fever with feeling very unwell, or difficulty fully opening your mouth. These can signal that the infection is spreading beyond the tooth, which is a medical emergency. If you experience any of these — especially trouble breathing or swallowing — do not wait for a dental appointment: go straight to A&E or call 999.
What Causes a Dental Abscess?
An abscess is almost always the end result of bacteria reaching somewhere they shouldn't. The most common route is untreated tooth decay that works its way through the enamel and into the nerve, letting infection take hold at the root. A cracked or broken tooth offers the same open door. Advanced gum disease can create deep pockets where bacteria collect and form a periodontal abscess, and occasionally a failed or leaking filling or a past injury to a tooth is the trigger. The common thread is that the infection has a source — which is exactly why treatment focuses on removing that source, not just draining the pus.
How We Treat a Dental Abscess at Smile Serenity
Our first priorities are to relieve your pain and drain the infection, then to deal with its cause so it doesn't come back. After examining the tooth and usually taking an X-ray to see the extent of the infection, we'll drain the abscess to release the pressure — which often brings rapid relief. From there, treatment depends on the source: a tooth that can be saved is typically treated with root canal treatment to remove the infection from inside it, while a tooth that's too badly damaged may need to be removed. If the abscess is linked to gum disease, we'll treat the gum pocket directly. Antibiotics are sometimes used alongside treatment where infection is spreading, but on their own they don't fix the underlying problem — the source still has to be addressed. Throughout, we'll explain clearly what we've found and what we recommend, so you understand every step.
Why You Shouldn't Wait It Out
It's tempting to hope an abscess will settle, particularly if it bursts and the pain eases — but that relief is misleading. The infection remains, and it can spread to the jaw, the surrounding tissues and, in rare cases, become life-threatening. Painkillers and even a course of antibiotics only buy time; they don't remove the cause. Getting seen quickly means less pain, a simpler treatment, and a far better chance of saving the tooth.
Get Your Dental Abscess Treated in Leicester
If you have the signs of an abscess — throbbing pain, swelling, a bad taste, or a lump on your gum — don't try to wait it out. Prompt treatment relieves the pain and stops the infection spreading.
Need to be seen today? Our emergency dental assessment is just £55, with same-day appointments often available. Book online or call our friendly Leicester team on 0116 4030109 and we'll get you seen quickly. If your swelling is spreading, or you have any difficulty breathing or swallowing, treat it as a medical emergency and go straight to A&E or call 999.

