Wisdom teeth typically begin erupting between ages 17 and 21, though they may form earlier. These third molars develop last in the mouth, often causing crowding or impaction due to limited jaw space.
Wisdom teeth form in the jaw during adolescence, usually around age 10-12. They remain below the gumline until they push through, a process called eruption. Unlike other teeth, wisdom teeth don't always emerge fully or evenly. Some may stay partially trapped (impacted) against neighboring teeth or bone.
| Type | Description | Typical Age Range |
|---|---|---|
| Fully erupted | Completely through gums, aligned with bite | 17-21 |
| Partially erupted | Exposed but misaligned or crowded | 16-23 |
| Impacted | Trapped beneath gums or bone | Varies widely |
Human jaws have shrunk over millennia, but tooth size hasn't. This mismatch often leaves insufficient room for wisdom teeth. When they're impacted, they can press against adjacent molars, leading to pain, infection, or cysts. The American Association of Oral and Maxillofacial Surgeons recommends evaluating wisdom teeth by age 16.