I'd ask the dentist if she can hold off another week before getting the braces. Our son recently got his braces removed. I remember when he first had them installed we had broken wires a couple times in the first two or three weeks. That can be a problem if you are on a cruise. The wax they give you isn't always a solution to blunting a sharp instrument in your mouth, and I'd sure not want to have to find an available pediatric orthodontist in Bermuda or the Caribbean. It is a specialty after all and not something any dentist can handle.