I am 29 years old and when i was in my early teens i remember i must have yawned or something and my jaw locked. I could no longer open my mouth wide and for a sort time i wasnt able 2 eat properly unless it was cut up into tiny pieces. I am now how ever able to open my mouth 2 eat but things like putting a monster munch crisp in my mouth is a struggle. My jaw feels very tight when i open it or when i yawn and the dentist find it hard to work on my teeth when needed. I can no longer stick my tongue out far like i used to be able to. My jaw dont really crack much anymore but the odd time it will. I really want to find out what is wrong with my jaw and get it fixed but im scared that i may have to have my jaw re-broken and wired shut to fix it