I have 2 front porcelain crowns for 3 years prior to braces. After having braces for 2 to 3 months, I noticed my left front crown was pulled down a bit compared to my right crown. This then caused a small gap on top of my left crown where I can see the tooth root. Would my crown eventually move back up to my gum line when I am done with braces treatment? Or will I have to redo a new crown again after braces?