Dysfunctioning as in??
Your question is not that apt.
Well, common symptoms could be pain, immobility, unable to eat swallow etc
Yes it is a possibility for the lower jaw to back it normal position and so even the natural lower teeth also as the jaw itself is moving backwards.
Next Steps
kindly visit a dentist nearby rather than self analysing.
online consultation and actual visual consultation differs a lot. any problem causing factor can be detected in your dental visit