I got my braces off over 3 years ago but over time a very tiny gap has appeared in between my two middle teeth. I would love to close that gap and also if possible maybe file down my 2 front teeth as I feel as though they look very odd as they’re so large compared to my other teeth. Although when the gap is closed it may look normal. I have a fixed permanent retainer on the back of my teeth and wondered if I got bonding done would that have to be taken off and put back on or could it stay off?