I am wondering a couple of things...does this cause her pain? Does it inhibit her speech? Is she self-concious about the gap? I ask for two reasons.
One, our family dentist tried to have me get this done to my daughter years ago. I did not. She is now 10 and since her adult teeth have come in and continue to come in, the gap is no longer noticeable.
Two, the reason I did not have the procedure performed is because I and my sister remember when she had hers done. I remember crying and no sleep. She remembers pain and begged me not to have it done to my daughter. While I realize procedures have changed, I, personally, am not a big fan of any cosmetic procedures until a child is old enough to ask for and consent themselves. That is why I asked the questions at first...
Just my 2 cents!