What can be done about my upper anterior crowns that are suddenly shifting after 15 years?

March 1, 2019
Asked By:natasha.h1997 in South Africa, ZA

I have to anterior crowns on my upper centrals, that I got 15 years ago. It was perfect until about a month ago, then it started to shift, the 11 is rotating, and is now mesially displaced. What can be done? Ortho treatment?