The third set of molars are often called “wisdom teeth” because they are fully developed around what used to be called “the age of wisdom,” which is around 18. They have absolutely nothing to do with intelligence. In fact, quite the opposite…most wisdom teeth can’t even figure out how to get into the mouth headfirst!
There have been many theories and myths about why wisdom teeth should be extracted or left in place. Many dentists used to encourage leaving wisdom teeth in place if they erupt fully, even if they come in crookedly because they would supposedly make a good support tooth for a prosthesis if the second molar (12-year molar) would be lost for some reason. In reality, though, the wisdom teeth make poor abutment teeth for prostheses because their root structures are weak and unpredictable. One of the theories that used to be posed to justify extraction claimed that wisdom teeth “pushed” teeth forward, causing the front teeth to crowd. Good research has proven time and time again that wisdom tooth impaction and/or eruption has absolutely no effect on the lower front teeth.
So, what do we know? We know that wisdom teeth are so far back in the mouth that they are very, very difficult to clean with normal home hygiene practices. Therefore, wisdom teeth are very susceptible to dental decay, especially later in life when dexterity is compromised by arthritis, etc. Impacted wisdom teeth have the potential to cause cysts which can weaken the jaw bone and cause damage to the adjacent second molars. Partially impacted teeth, which poke partially through the gum, can become infected and cause damage to the gums and bone surrounding the adjacent teeth. Sometimes, severe infections can result.
I personally do not know of any logical reason for not having third molars removed at a young age, unless a person simply does not want to undergo the procedure or unless there is some other underlying medical reason that would complicate the extraction surgery. The risks of keeping wisdom teeth usually far outweigh the benefits of taking them out. Since many wisdom tooth extractions are difficult and require substantial healing, the younger a person is when the procedure is done, the less risk is involved and the better healing potential that exists. Once the roots are completely formed, surgery becomes much more complicated in many cases.
We welcome the opportunity to provide you with comprehensive oral health care and invite you to schedule a visit to meet Dr. Huff and our team.