Can I get the inman aligner to safely move my teeth back into a forward position after having them moved backwards?

I have had ceramic braces for 3 years ..not the entire 3 years were my teeth continuously moving for about 6 months my top teeth were left alone as they were assumed to be finished with. I had them pushed back after feeling they went too forward and have lost my upper lip support I feel like my face has sunken and I really want them back in the position they was in 6 weeks ago can someone please tell me if I was to use an appliance such as the inman aligner to push them back slightly if this will be ok?

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