I have a 'clicky' jaw .
Is it cos you don't have enough cud to chew on ???
Have always had a clicky jaw to so that may be a precursor or hopefully for you not
It just went crrrrunnnch one day and then made all sorts of noises and hurtees when bite on anything or open gob wide.
Think I've worked out how to cope with it, apparently neither Amazon nor EBay sell replacement jaws so that might be the best it gets to. Lots of people have worserer issues
And on the bright side, beer drinking is totally unaffected