Usually it is best to do the braces first so that all the teeth can be in their ideal, aligned position before the implant is placed. That will also allow the most ideal placement of the implant since it can be angled exactly as it needs to for that space. However, if there is not significant movement of the teeth next to the space where the implant will be, then maybe the implant can be placed and start its osseointegration process (healing of the bone to the implant.) Often times, oral surgeons recommend allowing an implant to integrate for 3-4 months before placing a final crown. Some patients appreciate allowing the implant to finish healing during braces, so that once the braces are off, the implant is ready to restore!