The most common reason for impaction is lack of space in the jaws. People inherit the size of the jaws from one parent and the size of teeth from the other one. And it happens that a person has a small jaw with large teeth. So there are cases when there is no space for the wisdom tooth to erupt. Other reasons include a dense bone of gum covering the path, the lack of erupting stimulus, a gem that is not in the correct position, a wisdom tooth located somewhere else in the mouth and more. They are diagnosed with a panoramic X-ray. Sometimes it will still be possible for this tooth to erupt, but in most cases, they have to be extracted.
If they are not, wisdom teeth can cause a lot of problems including pericoronitis with swelling, pain,
decay, difficulties in opening and closing the jaw, swollen lymph nodes, stiffness in the jaw, hypersalivation, damage to the surrounding teeth, bacterial infection and more. To prevent all of the above, the third molars have to be surgically extracted. Of course, all of this happens after a consult with a dentist and an oral surgeon. The extraction is done with the use of anesthesia, and the patient will have to get some rest for a few days after the procedure.