Age 43, crooked teeth on lower jaw & slightly forward on upper, straightening or zirconia crown?

"ongoing braces on bottom teeth", so do you have aligner/Invisalign OR braces in the lower arch? or are you saying braces orthodontic treatment? More loosening of teeth is common with braces than with aligner treatment. tooth mobility is temporary [3 to 6 months] and goes during the retainer...

You have two concerns. 1. In your current photo, lips are stretched on one side. please upload a front photo with a relaxed smiling face to judge your issue (cant OR muscle asymmetry). 2. your other concern is a curve of speed, I can see an exaggerated curve of speed in your side photo....

White spots occur because plaque and bacteria has built up around braces : the enamel there has been weakened and the tooth is at risk for a cavity and infection. 1. use high fluoride toothpaste. if that do not work 2. visit cosmetic dentist for tooth coloured filling/ veneer.

There are various ways to create space for blocked teeth/tooth. eg. IPR, extraction of tooth, arch expansion, etc. But no need to worry, that it your orthodontist's job, he will manage. Your case has mild crowding; it's a simple case.

For that cephalometric analysis [skull frontal asymmetry analysis] is must to identify the cause, basis on that one can guide you. Visit orthodontist or maxillofacial surgeon.

First, why are your teeth so much proclined after braces treatment? You are ideally all four premolar extraction case. As not all your teeth are visible, so tell me any extractions done during your braces treatment? After this, I can guide you for treatment and retention.