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Does everyone have wisdom teeth

Does Everyone Have Wisdom Teeth? Everything You Need to Know

by Dr. Ori Levy | January 27, 2026 | 0 comments

Wisdom teeth, also known as the third molars, are the last set of molars to emerge in the mouth, usually between the ages of 17 and 25. However, not everyone develops wisdom teeth. Some people may have all four, while others may have none or only some. In this article, we will explore why some people have wisdom teeth and others do not, the potential complications of these teeth, and when they appear.

If you have ever asked yourself whether everyone has wisdom teeth, the short answer is no. Various factors contribute to the absence of wisdom teeth in some people, and it is important to understand why this occurs.

Why Some People Don’t Have Wisdom Teeth

There are two main reasons some people do not develop wisdom teeth: genetics and evolution.

Genetic Factors

  • Some individuals lack the genetic blueprint to grow one or more wisdom teeth.
  • Studies suggest that 20–35% of people may be missing at least one wisdom tooth.
  • The absence of wisdom teeth due to genetic factors does not negatively impact dental health.

Evolutionary Factors

  • Early humans had larger jaws and ate tougher, raw foods, requiring extra molars for chewing.
  • As diets became softer and processed, the need for additional molars decreased.
  • Over time, human jaws shrank, leaving less space for wisdom teeth to emerge, which is why these teeth often come in later or remain absent.

Note: Not having wisdom teeth is a natural variation and is usually harmless.

When Do Wisdom Teeth Come In?

Wisdom teeth typically start to emerge between the ages of 17 and 25. However, this timeline can vary significantly. Some people may experience the eruption of their wisdom teeth earlier or later, and in some cases, wisdom teeth may never fully emerge. There are also instances where wisdom teeth remain trapped beneath the gum line, causing discomfort.

In some cases, wisdom teeth may come in partially or at an angle, leading to misalignment. This delay or abnormal eruption can result in various complications. Regular dental checkups can help monitor their growth to avoid potential issues.

What Are the Complications of Wisdom Teeth?

While wisdom teeth are a natural part of the development process, they can cause a variety of complications if they emerge improperly. Some of the most common issues include:

  • Impacted Wisdom Teeth: When there’s insufficient space in the jaw for wisdom teeth to emerge, they can become impacted. Impacted wisdom teeth often grow sideways, remain trapped beneath the gum line, or grow at an angle toward neighboring teeth. This can cause significant discomfort and pain.
  • Infection and Gum Disease: Impacted wisdom teeth can sometimes lead to more serious issues, including a wisdom tooth Infection, which requires prompt clinical evaluation to prevent further complications. The inability to clean partially erupted wisdom teeth increases the risk of gum disease.
  • Tooth Damage: Wisdom teeth that grow at an angle can apply pressure on neighboring teeth, potentially causing tooth damage, misalignment, or decay.

If you experience any of these issues, it may be necessary to consult with your dentist. In many cases, tooth extractions may be recommended to relieve discomfort and prevent further damage to your oral health.

Complications of wisdom teeth

Why Do Wisdom Teeth Come In So Late?

The late eruption of wisdom teeth is linked to the evolutionary history of human beings. Early humans had larger jaws that required additional molars for chewing tougher, raw foods. However, as human diets changed, the need for these extra teeth diminished.

Furthermore, as human jaws became smaller due to evolution, there simply is not enough space for wisdom teeth to grow in most individuals. This is why wisdom teeth tend to emerge much later than other teeth, often during the late teens or early twenties, if they emerge at all.

For many people today, wisdom teeth don't come in fully because of limited space in the mouth, and as a result, they may cause complications like impaction or infection.

Does Everyone Have to Remove Their Wisdom Teeth?

Not everyone with wisdom teeth needs them removed, but certain situations make removal the safest option. Your dentist will assess your unique case to determine whether intervention is required.

Situations Requiring Wisdom Teeth Removal

Wisdom teeth don’t always cause problems, but in some cases, they can lead to pain, infections, or misalignment. Dentists monitor their growth to decide if removal is necessary. Common situations include:

  • Persistent Pain or Discomfort: If your wisdom teeth are impacted or misaligned, they can cause ongoing pain or pressure.
  • Recurrent Infections: Infections around partially erupted wisdom teeth can lead to swelling, abscesses, or systemic oral health issues.
  • Crowding or Misalignment: Angled wisdom teeth can push neighboring teeth out of position, affecting your bite and dental alignment.
  • Preventive Measures: Even if no symptoms are present, some wisdom teeth are removed preemptively to avoid future problems, especially if they are likely to become impacted.

Professional care for these cases often involves wisdom teeth removal, which can prevent further complications and maintain optimal oral health. Regular checkups and X-rays allow dentists to monitor the growth of your wisdom teeth and plan treatment before severe issues arise. If removal is necessary, following proper post-operative care is essential. Choosing the right foods can significantly aid recovery. Our guide on 25 foods to eat after wisdom teeth removal provides safe, nutritious options for the days following surgery.

When to See a Doctor?

If you’re experiencing any of the following symptoms, it’s important to consult with a dentist:

  • Pain or discomfort around the back of the mouth
  • Swelling or tenderness in the gums near the wisdom teeth
  • Difficulty opening your mouth due to pain or swelling
  • Persistent bad breath or an unpleasant taste in your mouth

These symptoms could indicate that your wisdom teeth are impacted or causing an infection. If any of these signs occur, don't hesitate to make an appointment with your dentist. Depending on the severity of the situation, treatments such as wisdom teeth removal or tooth extractions might be recommended to prevent further complications.



Conclusion

In conclusion, does everyone have wisdom teeth? The answer is no. Many people don’t develop wisdom teeth at all, and this absence is often a result of genetic and evolutionary factors. For those who do have wisdom teeth, complications like impaction, infection, and damage to neighboring teeth are common. If you're experiencing any issues with your wisdom teeth, consulting a dentist is crucial. If necessary, tooth extractions or teeth removal can help alleviate the discomfort and prevent further oral health problems.

By staying on top of your dental checkups and addressing any issues with your wisdom teeth early, you can ensure that your teeth stay healthy for years to come.

FAQs

Does everyone have four wisdom teeth?

No, not everyone has four wisdom teeth. Some people may have only one, two, or none at all due to genetics or evolutionary factors.

Is it rare to have all four wisdom teeth?

Having all four wisdom teeth is actually quite common, but it’s also normal for some people to have none or just a couple. Genetics plays a big role in whether you get all four.

How many people worldwide are missing wisdom teeth?

About 20-35% of people globally are missing one or more wisdom teeth, which is a natural variation due to genetics.

Are wisdom teeth becoming less common?

Yes. More people are being born without wisdom teeth or developing fewer of them. Evolutionary changes make these teeth less necessary.


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