S.E.
theres nothing you can do about it.. i wouldnt make a big deal out of it unless she does.. if she hasnt said much about it and you do.. it might make her feel worse about the whole situation.. if she does start saying things about it i would just tell her that obviously her teeth were worse than her sisters and she has to have them on longer.. if she got them taken off now along with her sister her teeth wouldnt be straight and thats the whole point of getting braces in the first place.. its going to suck for her for a while but she'll get over it .. my teeth were horrible i had a ton of friends who got their braces after i did and got them off first... once she gets them off and shes how great she looks without them she'll forget that she ever had to have them on so long