Subtle discrepancies between the new aligner and the current position of the teeth are normal, as it takes a while for the teeth to adjust to the aligner. If the problem persists, contact your dentist.
Not at all. Unlike traditional braces, you can eat and drink anything you like because you will remove the aligners before eating.
Sugar and acid free cold or lukewarm drinks yes, but hot drinks are not recommended, as they could cause stains or bend the aligner.
No, it is not recommended because the chewing gum sticks to the aligner and is hard to remove. In addition, chewing gum constantly exerts an unnatural pressure on the aligner, which does not comply with the wearing instructions.