I fully agree with Dr Lee that chewing on one side will do little to help with the problem.
In my experience as an aesthetic physician, it is as Dr Lee said, most of us have mild asymmetries, and almost every case of asymmetry has a mixture of BOTH bony and muscular elements.
If the asymmetry is bothering you, I would suggest some botox and fillers first to correct it as a temporary measure. I would refer to my dental or orthodontic colleagues to correct teeth alignment and jaw surgery for better functional outcomes and long-lasting results.
