If you think you may have an infected tooth, you’re not alone. Dental infections, often called tooth abscesses, are one of the most common reasons people visit the dentist in pain. In Australia, thousands of dental emergencies each year are linked to untreated infections that require urgent attention.
An infected tooth is not something that will clear up on its own. Without treatment, the problem can quickly become worse, spreading to surrounding areas of the mouth or even other parts of the body. In some cases, the best option is removing the tooth altogether.
This article will walk you through what an infected tooth is, the signs you should look out for, when removal might be the right choice, and what happens during the procedure. By the end, you’ll feel more informed and confident about what steps to take if you or someone you know is dealing with this painful condition.
What Is an Infected Tooth?
An infected tooth usually means there is a pocket of pus, known as a dental abscess, either inside the tooth or around its root. This happens when bacteria enter the inner part of the tooth, called the pulp, which contains nerves and blood vessels.
Some common causes include:
- Untreated tooth decay
- A crack or chip that lets bacteria in
- Severe gum disease that affects the supporting structures of the tooth
Once bacteria reach the pulp, the infection can spread quickly. Because the pulp cannot heal itself, dental treatment is always required.
An infected tooth is much more serious than a routine cavity. The bacteria can spread beyond the tooth, affecting the gums, jawbone, and in extreme cases, the rest of the body. This is why dentists consider it a dental emergency and encourage people to act as soon as symptoms appear.
Signs and Symptoms of Dental Infections
Recognising the warning signs of an infected tooth can help you get help before things become dangerous. Some of the most common symptoms include:
- Severe, throbbing pain that may radiate to the jaw, ear, or neck
- Swollen, red, or tender gums around the affected tooth
- A pimple-like bump on the gum that may release pus
- Swelling of the face or jaw
- A persistent bad taste in the mouth or bad breath
- Fever or feeling generally unwell
Research shows that dental abscesses are one of the leading causes of hospital admissions for dental issues in Australia, which shows just how common and serious they are (Australian Institute of Health and Welfare, 2023).
If you notice these symptoms, it’s best to see a dentist straight away. Ignoring an infection not only prolongs the pain but also increases the risk of the infection spreading and causing serious complications.
Why Might an Infected Tooth Need Removal?
Dentists aim to save natural teeth wherever possible, but sometimes removal is the best option. Extraction may be recommended when:
- The tooth is too damaged or decayed to repair
- A previous treatment, such as a root canal, has failed
- The infection is severe and spreading
- Removing the tooth is the fastest way to eliminate the source of infection
Pulling the tooth can prevent the bacteria from moving into the jawbone, bloodstream, or other areas. It can also relieve pressure and pain that often feel unbearable with an abscessed tooth.
For many patients, extraction provides immediate relief and allows the healing process to begin without the ongoing risk of the infection worsening.
Treatment Options: Root Canal vs. Extraction
When it comes to treating an infected tooth, two main options are usually discussed: saving the tooth with a root canal, or removing it altogether.
Root canal therapy involves cleaning out the infected pulp from inside the tooth, disinfecting the canals, and sealing them with a filling material. A crown is often placed on top to strengthen the tooth. The big advantage of this approach is that you get to keep your natural tooth, which maintains the bite and prevents neighbouring teeth from shifting.
Extraction, on the other hand, removes the tooth completely. This is often recommended if the infection is too advanced, the tooth is cracked beyond repair, or a previous treatment hasn’t worked. After the tooth is removed, you might consider options like an implant, bridge, or denture to fill the space if needed.
Here’s a simple comparison table that outlines the two approaches:
| Treatment | Pros | Cons |
| Root canal | Keeps natural tooth, restores function, avoids gap | Higher cost, multiple appointments, not always possible |
| Extraction | Quick procedure, eliminates infection source immediately, cost-effective | Leaves a gap, may need replacement later, longer-term effects on bite |
Dentists will always weigh up which option is most appropriate, but in many cases of severe infection, removal is the most practical choice.
The Infected Tooth Removal Procedure
Tooth extraction is a common dental procedure and usually straightforward, even if the tooth is infected. Here’s what typically happens:
Before the tooh extraction
- The dentist takes X-rays to assess the tooth and surrounding bone.
- You’ll receive a local anaesthetic to numb the area. For more complex cases or anxious patients, sedation options may be offered.
- If the infection is severe, a short course of antibiotics might be prescribed beforehand.
During the tooth extraction
- For a simple case, the dentist loosens the tooth with an instrument called an elevator, then gently removes it with forceps.
- For a surgical extraction (for example, if the tooth has broken off at the gum line or is difficult to reach), a small cut may be made in the gum, and the tooth may be removed in sections.
- If pus is present, the dentist may drain it to ensure the infection is cleared.
After the tooth is removed
- The socket is cleaned, and a gauze pad is placed to help stop bleeding.
- Stitches may be required if a surgical cut was made.
Most extractions take less than an hour, and patients generally report more relief than severe pain once the procedure is finished.
Aftercare and Recovery
Caring for your mouth after an infected tooth removal is an important part of the healing process. Following your dentist’s instructions closely will help you recover smoothly.
Immediate care
- Keep firm pressure on the gauze pad for 30–60 minutes.
- Take any prescribed antibiotics as directed to fully clear the infection.
- Manage discomfort with over-the-counter pain relief such as ibuprofen or paracetamol, unless advised otherwise.
What to do
- Rest and avoid heavy physical activity for the first day.
- Stick to soft foods like soup, yoghurt, or mashed potatoes.
- Rinse gently with warm saltwater after 24 hours to keep the area clean.
- Keep your head slightly elevated when lying down.
What to avoid
- Smoking or vaping, which can significantly delay healing.
- Drinking through a straw or spitting forcefully, which can dislodge the blood clot.
- Alcohol, particularly while taking antibiotics or pain medication.
Healing timeline
- Day 1–3: Some swelling and soreness are normal.
- By Day 7: Pain should be minimal, and gum tissue will be closing.
- Weeks to months: Bone and deeper tissues continue to heal in the background.
Most people return to normal activities within a day or two, but complete healing of the socket takes longer. Call your dentist if you notice worsening pain after a few days, persistent swelling, fever, or any unusual discharge.
Risks of Leaving an Infected Tooth Untreated
Delaying treatment for an infected tooth can have serious health consequences. The infection doesn’t stay confined to the tooth. It can spread into the jawbone, soft tissues of the face, or even into the bloodstream.
Some of the complications include:
- Osteomyelitis: infection spreading into the bone and causing bone infection
- Cellulitis: swelling and infection of the skin and soft tissues.
- Ludwig’s angina: a severe infection in the floor of the mouth and neck that can block the airway.
- Sepsis: a life-threatening condition where infection spreads throughout the body.
In Australia, dental abscesses account for a significant number of hospital admissions. A report showed that treating an infection in hospital can cost more than 100 times the price of a simple extraction in a dental clinic. Acting early is not only better for your health but also far more cost-effective.
The good news is that these complications like bone or socket infection are largely preventable with timely dental treatment. Seeing a dentist at the first sign of infection is the safest choice.
Prevent Infection with Good Oral Health
While sometimes a tooth infection is unavoidable, good habits and regular care to maintain oral hygiene greatly reduce the risk. Prevention not only saves teeth but also spares you from painful emergencies and the cost of complex treatment.
Daily care
- Brush twice a day with a fluoride toothpaste to strengthen enamel and stop decay from taking hold.
- Floss once a day to remove food and plaque from between teeth, where decay often begins.
- Use an antibacterial mouthwash if your dentist recommends it, especially if you are prone to gum problems.
Diet and lifestyle
- Limit sugary snacks and drinks, since sugar feeds bacteria that cause decay.
- Drink tap water where possible, as most Australian water supplies are fluoridated and help protect teeth.
- Wear a mouthguard during contact sports to protect against cracks or trauma that could later become infected.
Regular check-ups
- Visit your dentist every 6–12 months for professional cleaning and a check-up. Small cavities or gum issues can be spotted and treated before they become infected.
- Don’t ignore tooth sensitivity or gum swelling. Acting quickly can be the difference between a filling and an extraction.
Access to dental care in Australia varies depending on whether you use public or private services. Public dental services often have long waiting times, so private clinics can be the faster way to get treated when urgent problems like infections arise. Either way, preventive care is almost always less stressful and less costly than emergency care.
Key Takeaways
- An infected tooth, or abscess, will not clear up on its own and requires dental treatment.
- In many cases, dentists try to save the tooth, but when the infection is severe or the tooth is beyond repair, extraction is the safest option.
- The procedure itself is straightforward and usually done under local anaesthetic, with most patients experiencing relief soon after.
- Following aftercare instructions helps speed up recovery and reduce the risk of complications.
- Preventive care — daily cleaning, regular check-ups, and sensible diet and lifestyle habits — is the best way to avoid tooth infections in the first place.
