How Can Lower Jaw Can Be Brought Forward to Its Place Without Surgery?

Hello.I had my braces on 7 months ago and after that I actually started noticing dramatic changes in my face.The lower jaw fell back(probably due to retractive forces of braces system),as a result,my chin has recessed ,my face elongated.I red that this is a typical phenomenon that appears when the teeth get pulled off,however,I didnt have any extractions.How can everything be reversed with a non surgical way?Will my jaw be back into its place if i take off the braces on this stage?I am 19.