- The upper front teeth extend too much over the lower teeth (overjet).
- When biting together, the upper front teeth cover most of the lower teeth (deep bite).
- The upper front teeth are inside or behind the lower front teeth (under bite).
- When biting together, the upper and lower front teeth do not meet (open bite).
- Crowding-this occurs when teeth do not have enough room to erupt from the gum.
- Spacing problems.
- When biting together, the lower jaw shifts to one side or the other.
- The center of the lower and upper teeth does not align correctly.
- You find it difficult to chew.
- You experience uneven or excessive wear on the teeth.
- Finger or thumb-sucking habits continue after age six or seven.