Should i got back to the orthodontist ?

So, I've had my braces for like 2 1/2 years now and my teeth are straight. But my orthodontist said i have to keep my braces on until my molars grow in all the way. So they changed my bands on my braces but forgot to put them on like 1/2 of my bottom teeth. So should i go back so they can put them or , or does it not really matter ? (because the wire is still on)