Most people, unfortunately, do not have enough room in their mouths to allow full eruption of wisdom teeth. Because of this, there is a far greater risk of infection and pain surrounding them. This can affect the overall health of the patient as well as jeopardize the teeth adjacent to the wisdom teeth.
Many people need to have their wisdom teeth extracted to avoid future serious problems. In general, the lack of the four wisdom teeth does not hamper one's ability to properly bite down, speak or eat.