D.P.
I have been told that as far as the bottom front teeth go--it's not imperative that the baby teeth be pulled, even if the big teeth are in--and this happened to my son with both front bottom teeth. The pediatric dentist said just to have him wiggle & twist & work it til it was out. Which he did, then the big teeth moved into position (amazing!).
However, he did have to have a top front tooth pulled due to an abcess from a previous tooth injury. It was not loose even a tiny bit. My son agreed to have it done & gave the thumbs up. The dentist used the numbing gel the administered a novocaine shot (very covertly) and then started YANKING. Thank God I was not there--my husband took him to the appointment--he said she really had to PULL that sucker out. My son has always been good at the dentist and he came through it like a champ. (Mom would have been out cold on the floor!) He was completely fine with it. He was almost 5 when he had it pulled.
Talk to your dentist about whether he/she is recommending pulling it for cosmetic reasons only or if it truly needs to be pulled out. Google "shark teeth" and see what it says.