Horizontal. Just like it sounds, a horizontal impaction is one in which the tooth is angled completely on its side (horizontally). It is usually the worst and most painful type of wisdom tooth impaction to have, and is often completely under the surface of the gum and pushed against the molar next to it.

Traditionally, wisdom teeth were often removed to prevent potential problems such as crowding, misalignment, and impaction. However, studies have shown that not all wisdom teeth cause these issues. Many people have sufficient space in their jaws to accommodate these teeth without causing any significant problems.

While impacted wisdom teeth are generally more difficult to remove, the process isn't necessarily more painful.