Why is it there are some cases that third molar appears at early age?

Third molars, also known as wisdom teeth, typically erupt between the ages of 17 and 25. Early eruption of third molars, before the age of 17, can occur for several reasons. Here are some possible causes:

1. Genetic factors: Genetics play a role in the timing of third molar eruption. Some individuals have a genetic predisposition to early eruption of wisdom teeth.

2. Variation in developmental timing: In certain individuals, the development and eruption of third molars may occur at a faster rate than usual, leading to their early appearance.

3. Environmental factors: Certain environmental factors, such as diet and nutrition, may influence the timing of wisdom teeth eruption. A diet rich in certain nutrients and minerals can promote early mineralization and development of the third molars.

4. Oral hygiene practices: Poor oral hygiene and dental crowding can contribute to impaction of third molars. In some cases, early eruption of wisdom teeth may be a compensatory mechanism to accommodate impacted molars in the jaw.

5. Medical conditions: Certain medical conditions, such as pituitary disorders or hormonal imbalances, can influence the timing of wisdom teeth eruption.

6. Racial or ethnic variations: Differences in genetic traits and developmental patterns among racial and ethnic groups can result in variations in the age of third molar eruption.

If you observe an early eruption of your third molars, it is advisable to consult with a dentist or orthodontist for proper evaluation and management. Early diagnosis and treatment can help prevent complications associated with impacted wisdom teeth, such as pain, infection, and misalignment.