A toothache can be easy to ignore at first. Maybe the pain comes and goes, or you notice some sensitivity when chewing or drinking something hot or cold. It might even seem manageable enough to wait a few days and see what happens.
But when tooth pain is caused by an infection, waiting too long can sometimes allow the problem to become more serious.
So, can a tooth infection spread if left untreated?
Yes. A tooth infection can spread beyond the tooth into the surrounding gums, jawbone, face, and, in more serious cases, other parts of the body. The good news is that dental infections can often be treated effectively when they are addressed early.
Understanding the warning signs can help you know when it is time to contact a dentist.
What Is a Tooth Infection?
A tooth infection usually develops when bacteria reach the inner part of the tooth, known as the pulp.
The pulp contains nerves and blood vessels. When bacteria enter this area, they can cause inflammation and infection.
This can happen for several reasons, including:
- Untreated tooth decay
- A cracked or broken tooth
- An old or damaged filling
- Gum disease
- Dental trauma
- A deep cavity
- Previous dental work that has become compromised
Once bacteria enter the pulp, the infection may continue to grow if it is not treated.
In some cases, a pocket of pus can form around the root of the tooth. This is often called a dental abscess.
Can a Tooth Infection Go Away on Its Own?
A true tooth infection generally does not resolve on its own.
Sometimes the pain may temporarily decrease, which can make it seem like the problem has improved. However, reduced pain does not always mean the infection is gone.
In some cases, the nerve inside the tooth may become damaged or die, causing the pain to lessen even while the infection continues to spread.
This is one reason it is important not to judge the seriousness of a dental problem based only on how much it hurts.
If you suspect an infection, it is better to have the tooth examined rather than waiting for the symptoms to return.
How Does a Tooth Infection Spread?
When bacteria remain inside or around an infected tooth, they can move into nearby tissues.
The infection may spread into:
The Gums
An infection around the root of a tooth can affect the surrounding gum tissue.
You may notice redness, tenderness, swelling, or a small bump on the gum near the infected tooth.
The Jawbone
If the infection continues, bacteria may spread into the bone supporting the tooth.
This can lead to additional discomfort, swelling, and damage to the tissues surrounding the tooth.
The Face and Cheek
A dental infection can sometimes cause noticeable swelling in the cheek, jaw, or face.
Facial swelling should not be ignored, especially if it is increasing.
The Neck
In more serious cases, infection can spread into deeper tissues around the jaw and neck.
This can become dangerous if swelling begins to affect breathing or swallowing.
Other Parts of the Body
Although uncommon, severe untreated dental infections can spread through the bloodstream and affect other areas of the body.
This is why dental infections should be treated as medical concerns rather than something to simply “wait out.”
What Are the Signs of a Tooth Infection?
The symptoms of a tooth infection can vary depending on how advanced the infection is.
Common signs include:
- Persistent toothache
- Throbbing pain
- Pain when biting or chewing
- Sensitivity to hot or cold
- Swollen or tender gums
- A bad taste in the mouth
- Bad breath
- Pus around a tooth or gum
- A small pimple-like bump on the gum
- Swelling in the jaw or cheek
- Tooth discolouration
- A loose tooth
- Fever
Some people may experience only one or two symptoms.
Others may notice symptoms that become more severe over time.
If dental pain lasts more than a day or two, or if swelling develops, it is a good idea to contact a dentist for an assessment.
When Does a Tooth Infection Become an Emergency?
Some dental infections require more urgent attention.
You should seek prompt medical or dental care if you develop:
- Significant facial swelling
- Swelling around the jaw or neck
- Difficulty breathing
- Difficulty swallowing
- Fever along with dental pain
- Rapidly increasing swelling
- Severe pain that does not improve
- Confusion or extreme weakness
Difficulty breathing or swallowing can be a medical emergency. If those symptoms occur, seek emergency medical care immediately.
Even if your symptoms are less severe, an infected tooth should still be assessed by a dentist as soon as possible.
What Happens if You Ignore an Infected Tooth?
Ignoring a tooth infection can allow the underlying problem to progress.
At first, the issue may involve only the inside of the tooth.
Over time, however, the infection can affect the tissues around the tooth and make treatment more complicated.
An untreated infection may lead to:
- A larger dental abscess
- Increased pain
- Gum swelling
- Bone loss around the tooth
- Facial swelling
- Loss of the tooth
- Spread of infection to surrounding tissues
Early treatment may also give your dentist more options for saving the tooth.
Waiting until the infection becomes severe can sometimes reduce those options.
Can Antibiotics Cure a Tooth Infection?
Antibiotics may sometimes be prescribed for a dental infection, particularly when there are signs that the infection has spread.
However, antibiotics alone usually do not remove the source of the infection.
For example, if bacteria are trapped inside an infected tooth, the tooth itself may still require treatment.
Depending on the situation, treatment may include:
- Root canal therapy
- Drainage of an abscess
- Tooth extraction
- Treatment of gum disease
- Repair of a damaged tooth
Your dentist will determine which treatment is most appropriate based on the location and severity of the infection.
How Is a Tooth Infection Treated?
Treatment depends on what is causing the infection and how much of the tooth is affected.
Root Canal Treatment
If the tooth can be saved, a dentist may recommend root canal treatment.
During this procedure, the infected tissue inside the tooth is removed. The inside of the tooth is then cleaned, disinfected, and sealed.
A dental crown may be recommended afterward to protect the tooth.
Tooth Extraction
If a tooth is severely damaged or cannot be restored, removing the tooth may be necessary.
Once the infected tooth is removed, your dentist can discuss options for replacing the missing tooth if appropriate.
Abscess Drainage
If an abscess has formed, the dentist may need to drain the infected area.
This can help reduce pressure and discomfort.
Antibiotics
Antibiotics may be used when infection has spread beyond the tooth or when certain other risk factors are present.
However, the dental problem that caused the infection usually still needs to be treated.
Can You Prevent a Tooth Infection?
Many tooth infections begin with common dental problems such as cavities, cracked teeth, or gum disease.
Good preventive care can reduce the risk.
Helpful habits include:
Brush Twice a Day
Brush your teeth twice daily using fluoride toothpaste.
Make sure to clean along the gumline and reach the back teeth.
Floss Every Day
Flossing helps remove plaque and food from areas your toothbrush cannot easily reach.
Limit Frequent Sugary Snacks and Drinks
Frequent sugar exposure can increase the risk of tooth decay.
Try to limit how often you consume sugary snacks and beverages throughout the day.
Do Not Ignore a Cracked Tooth
A cracked or broken tooth can create an opening for bacteria.
If you damage a tooth, schedule a dental assessment even if the tooth does not hurt.
Attend Regular Dental Checkups
Routine examinations can help identify cavities, damaged fillings, gum problems, and other concerns before they become more serious.
Why Does Tooth Pain Sometimes Suddenly Stop?
This can be confusing.
You may have severe pain for several days and then suddenly feel better.
Unfortunately, that does not always mean the tooth has healed.
If the nerve inside the tooth dies, pain may decrease because the nerve can no longer send the same pain signals.
The infection, however, may still be present around the root.
If you had significant tooth pain that suddenly disappeared without treatment, it is still worth having the tooth checked.
Should You Wait Until a Tooth Infection Hurts?
No.
Not every infected tooth causes severe pain.
Some infections develop gradually and may produce only mild symptoms at first.
You may notice:
- Slight discomfort when chewing
- Occasional sensitivity
- A bad taste in the mouth
- A bump on the gum
- Mild swelling
- A tooth that looks darker than the surrounding teeth
These signs can still indicate a problem.
Dental examinations and X-rays can sometimes detect issues that are difficult to see or feel on your own.
Tooth Infection or Simple Toothache: How Can You Tell?
Not every toothache means there is an infection.
Tooth pain can also result from:
- Tooth sensitivity
- Teeth grinding
- Gum irritation
- A cracked filling
- Food trapped between teeth
- Sinus pressure
- Jaw problems
Because different dental conditions can cause similar symptoms, it is difficult to diagnose the cause based on pain alone.
A dentist can examine the tooth, take X-rays if needed, and determine whether infection is present.
When Should You See a Dentist in Brampton?
If you are experiencing ongoing tooth pain, gum swelling, facial swelling, or signs of a dental abscess, do not wait for the problem to become more uncomfortable.
A dental examination can help identify the source of the problem and determine the appropriate treatment.
Patients in Brampton, Castlemore, Brampton East, and nearby communities can contact Castle Oaks Dentistry for an assessment if they are concerned about a possible dental infection.
The sooner an infected tooth is examined, the better the chance of addressing the problem before it becomes more complicated.
Frequently Asked Questions About Tooth Infections
Can a tooth infection spread to your jaw?
Yes. An untreated infection can spread from the tooth into the surrounding jawbone and tissues.
Can a tooth infection cause facial swelling?
Yes. Facial or cheek swelling can occur if the infection spreads beyond the tooth.
Can a tooth infection spread without pain?
Yes. Some dental infections cause little or no pain, particularly if the nerve inside the tooth has already been damaged.
How long can you leave a tooth infection untreated?
There is no safe amount of time to leave a suspected dental infection untreated. Infections can progress at different speeds, so early assessment is recommended.
Will antibiotics fix an infected tooth?
Antibiotics may help control spreading infection, but they usually do not remove the source inside the tooth. Dental treatment may still be necessary.
Can an infected tooth be saved?
In many cases, yes. Root canal treatment may allow the dentist to remove the infection while preserving the natural tooth. Whether the tooth can be saved depends on how much damage is present.
Final Thoughts
A tooth infection may start with a small cavity, cracked tooth, or mild discomfort, but it should not be ignored.
When left untreated, infection can spread from the tooth into the surrounding gums, jawbone, face, and deeper tissues.
The earlier the problem is diagnosed, the easier it may be to treat and the better the chances of preserving the affected tooth.
If you have persistent tooth pain, swelling, sensitivity, or other symptoms that concern you, schedule a dental examination rather than waiting for the problem to disappear on its own.
Castle Oaks Dentistry provides dental care for patients in Brampton and surrounding communities, including assessment and treatment for tooth pain, dental infections, emergency dental concerns, root canal treatment, and tooth extractions.
If you are concerned about a possible tooth infection, contact Castle Oaks Dentistry to schedule an appointment and discuss the next steps for your oral health.
