Strange stuff! I recall reading something by a wise practitioner of "alternative" medicine to the effect that each tooth represents certain aspect of your body's "energy" (acupuncture theory). This man was against artificial straightening of the teeth because it is purely cosmetic and does nothing for the body's energy paths.

So, it sounds as if your body is attempting to right itself to what it originally was.

To go on a tangent, I am opposed especially to children's teeth being artificially forcibly straightened because it interferes with the growth of their head and can cause all sorts of problems that are resolved only if you get rid of the braces.