nnarum, i had mine taken out this past summer due to a "recommendation" from my dentist. i asked her 'i heard it's not necessary to get themtaken out (as long as they grown in properly and aligned with the rest of your teeth) and that you jsut get them checked up every year to make sure there'sno infection'....she gave me the run around saying there is a chance of infection and basically said do it because a) you're young (21) and b)you're covered through insurance
so i complied because of those points and i don't wanna risk ahving something serious happen and requrie major surgery if an infection did occur
my reccomendation: if you're young and are covered, i recommend doing it
i had 5 taken out, none grew in (never were going to either)....i recovered pretty quickly
if you have questions regarding this, feel free to PM me or ask here
gl