Why Canine is Turning Sideways?

Missing two incisors but canine so close that gaps were minimal. Since removing wisdom tooth, noticed left canine sliding away from the front but now I noticed that it has turned sideways creating too big a gap. What can be done to straighten out again. Is there any solution that does not require braces? As a matter of reference, my sister who was never missing any teeth, has the same canine turning around.