Contrary to the popular opinion, often afloat among laymen, wisdom teeth are not an inkling of extraordinary intelligence or cognitive ability. Instead, they are evolutionary leftovers that emerge between the ages of 17 and 25, often causing several dental issues. According to a reliable Australian health survey,  30.9% tooth extractions took place due to the presence of wisdom teeth. This mass level tooth extraction stems from multiple factors: wisdom tooth decay, inability to clean them properly, and aesthetic problems. 

Particularly, wisdom teeth often undergo decay because of their location and complex profile, which causes pain, inflammation and increases the risk of decay spread. In this blog, we will discuss the primary causes of wisdom tooth decay, its symptoms, and recommended treatment procedures so that you can make an informed decision about when to seek professional care. 

What is Wisdom Tooth Decay?     

Wisdom tooth decay refers to the breakdown or deterioration of the outer enamel of the leftover tooth, also known as third molar. Compared to other teeth, third molars are more susceptible to the decay process because their location hinders proper cleaning, which allows the food particles to stick to them. Prolonged presence of these particles favours acid attacks that compound with time, and trigger the decay process. If left untreated, the decay advances into a cavity, causing pain, bad mouth odor, which translates into low confidence and limited social interactions.

Why are wisdom teeth more prone to decay?       

1- Limited Access for Brushing And Flossing:

Wisdom teeth often erupt at skewed locations in the mouth, usually at the back of the mouth, through the gum, or from the normal alignment. There are hard-to-reach locations where brushing and flossing often lose their effectiveness, causing food particles to accumulate. As time passes, this pile-up triggers the breakdown of the enamel and leads to the formation of cavities.

2- Partial Eruption and Flaps:      

Another factor that accelerates this decay in wisdom teeth is that the wisdom tooth emerges partially from the gum line, with flaps forming over the teeth. The formation of flaps acts as an agent that traps food particles; the longer these food particles live in these areas, the more it runs the risk of decay. 

 

3- Crowding and Shifting Teeth:

Wisdom teeth often derail the natural alignment of teeth and create tight spaces where achieving proper cleaning is hard. As a result, decay starts to settle in gradually, and the results are obvious— bad odor, infection spread, and pain— if left untreated. 

 

Read this blog: How Tooth Decay Starts in Normal Teeth? 

Early Signs Of Wisdom Tooth Decay      

1- Pain and Sensitivity:         

Early signs of wisdom tooth infection include pain in the back of the tooth. It is usually felt, especially when you chew food using teeth that lie in the vicinity of wisdom teeth. In addition, a sudden twinge of sensitivity can be perceived the moment a sweet food or cold drink comes in contact with the teeth.

2- Bad Breath or Unpleasant Taste:  

Accumulation of food particles in the gap left between the third molar and other teeth can cause persistent bad mouth odor.  As the decay advances, the mouth experiences an unpleasant taste. The result? Even succulent meals the patient loves now leave a nauseating taste in the mouth. 

3- Red, Swollen, or Bleeding Gums Around The Teeth      

The presence of wisdom tooth cavities (advanced levels) is often indicated by inflamed gum tissue around the partially erupted tooth. Additionally, bleeding during flossing and brushing is a common indication of tooth decay.

 

4- Jaw Stiffness & Mild Swelling:   

The patient, experiencing a cavity in the wisdom teeth, may also notice localized swelling in the jaw or discomfort when opening the mouth to eat or smile.

 

Treatment Options For Wisdom Tooth Infection

Australian dentists recommend several treatment options to treat wisdom tooth infection, based on the magnitude of damage. Each treatment option requires a unique level of expertise, dental devices, and therefore, the incurred cost varies. 

1- Fillings:

Dental fillings come up as a recommended option when decay in the third molar is moderate, the tooth is fully accessible, and restoration is easy. The application of filling includes tooth examination, decay removal using a laser, preparation of the space, and placement of the filling material. 

2- Root Canal Treatment:      

When the decay has reached the pulp of the wisdom tooth, the endodontist may attempt a root canal treatment. This option holds suitability when the wisdom tooth has complex roots, multiple canals, and difficult surgical access. It is, however, important to note that this treatment is rarely applied owing to the complex profile and far location of the tooth. 

3- Decayed Wisdom Tooth Extraction:

Tooth extraction becomes the safest route when the decay in the wisdom tooth has advanced beyond a certain level. At this point, the chances of successful restoration edge down, forcing the dentist to uproot the tooth as a last resort. The extraction can either be simple or complex, depending on the position of the tooth and its angle. In this procedure, the dentist applies anaesthesia to the patient to minimise pain during the wisdom tooth extraction.         

4- Antibiotics:

While not regarded as a proper treatment for decayed wisdom teeth, antibiotics serve the function of curing infection, facial swelling, and other systemic symptoms. Consumption of antibiotics doesn’t eliminate tooth decay, but helps control infection temporarily.    

 

What happens if Wisdom Tooth Decay Is Left Untreated? 

1- Spread of Infection into Adjacent Molars:    

Bacteria present in the wisdom tooth aren’t confined to that area; they spread into the second molar, increasing the risk of cavities and infection.                                    

2- Cysts and Abscess Formation:

Unattended decay paves the way for deeper penetration into the jawbone, and this process is responsible for the formation of fluid-filled cysts or painful abscesses. 

3- Gum Infection:   

Persistent tooth decay can lead to inflammation and infection in the area present in the vicinity of the gum of the affected wisdom tooth. 

4- Chronic Pain:

As the decay progresses or even left untreated, the nerves and tissues underlying the tooth start to become overly sensitive. When the patient speaks or consumes any hot/cold drink or food, a sharp twinge or lingering ache may be felt.

 

When To Remove Decayed Wisdom Teeth?

Deciding when to remove an infected wisdom tooth depends on several factors that include the severity of decay, certain symptoms, and other potential complications. Let us take a closer look:

1. Symptoms Indicating Removal

You should consider extraction if you experience:

• Persistent pain or tenderness around the wisdom tooth

• Swelling or infection of the gums (pericoronitis)

• Difficulty chewing or biting

• Bad taste or odor due to decay

• Jaw stiffness or swelling

2. Extent of Decay

• Minor decay: If the tooth can be restored with a filling and there’s enough space, extraction may not be immediately necessary.

• Advanced decay: When the tooth is extensively damaged and cannot be restored, removal is usually recommended to prevent infection or damage to adjacent teeth.

3. Risk of Complications

Even if pain is mild, removal may be advised to prevent:

• Spread of infection to nearby teeth

• Cysts or abscess formation

• Gum disease in the area

• Misalignment of surrounding teeth

4. Timing Considerations

• Early removal (before severe decay or infection) is often easier and heals faster.

• Delayed removal may require more complex surgery and a longer recovery period.

• Teenagers and young adults often heal better after extraction than older adults.

5. Professional Assessment

A dentist or oral surgeon will consider:

• X-rays to evaluate tooth position and root structure

• Overall oral health

• Risks versus benefits of keeping versus removing the tooth

 

What are the prevention tips for preventing wisdom tooth Infection?

Wisdom tooth infection can be prevented by following a few simple steps, as explained below:

1- Regular Dental Checkups:

Seeing a dentist in your city in Australia can lead to early detection of decay signs in wisdom teeth before they advance to higher levels.

2- Periodic Dental X-Rays:

Having your teeth examined via X-rays every 2-3 years allows you to keep track of wisdom tooth position, eruption patterns, and early signs of infection.

3- Enhanced Cleaning Techniques: 

It is advisable to take the cleaning process to the next level by using angled toothbrushes, electric brushes, or interdental tools to perform thorough cleaning. This helps to clean hard-to-reach areas and ward off the development of decay.

4- Use of Anti-bacterial Facewash:    

Dentists recommend rinsing with a dentist-recommended antibacterial mouthwash, which reduces plaque buildup and harmful oral bacteria.

 

FAQs and more

1. Can a decayed wisdom tooth heal on its own?

No. Wisdom tooth decay cannot heal without professional treatment. Once enamel damage occurs, it progresses over time and may lead to infection, abscess formation, or the need for extraction if left untreated.

 

2. How do dentists diagnose wisdom tooth decay?

Dentists diagnose wisdom tooth decay through a clinical examination and dental X-rays. X-rays are especially important for detecting hidden decay, impacted wisdom teeth, and infection below the gum line.

 

3. Is wisdom tooth extraction always necessary if decay is present?

Not always. Mild to moderate decay may be managed with fillings if the tooth is fully erupted and accessible. However, extraction is commonly recommended when decay is advanced, recurrent, or associated with infection or crowding.

 

4. What are the risks of delaying treatment for a decayed wisdom tooth?

Delaying treatment increases the risk of infection spreading to adjacent molars, cyst or abscess formation, gum disease, chronic pain, and—in rare cases—systemic infection affecting overall health.

 

5. How can I reduce the risk of wisdom tooth decay?

You can reduce risk by maintaining excellent oral hygiene, using interdental cleaning tools, attending regular dental check-ups, undergoing periodic X-rays, and considering early preventive extraction when advised by your dentist.

 

Final Words:

Decay in wisdom teeth is a problem faced by many in Australia; it, however, can be prevented and treated by maintaining a proper oral hygiene routine. If you are experiencing an infection in your wisdom, it is time to get it treated under professional supervision. Connect with Ezy Dental, a reliable dental services provider in Australia, and reserve your slot today.