I pulled a silly face with my mouth open and heard and felt my jaw click on one side, now my teeth feel out and my jaw is a bit sore?

TMJoint: This is related to a dislocation of your Temporomandibular joint(s). Apply moist heat to the outside of your face just opposite your jaw joint, use Advil, Motrin or Aleve (naproxen) if you can take them, and stick on a soft diet for awhile. Even if this improves quickly, have your TMJoints and occlusion evaluated by a dentist to determine if this was just a quirk or a precursor to a chronic condition.

Jaw: Sounds like your jaw joint is out of the socket. Try warm compresses to that area and take ibuprofen but if its bad you might have to go to the er to put the jaw back

TMJ subluxation: It is self-inflicted post-traumatic TMJ subluxation and medical attention is warranted. The effects on long-run outcomes of TMJ subluxation, especially the acute is not very predictable and this depends on a thorough evaluation, treatment planning and compliance of the patient. See orofacial pain specialist for consultation and conservative treatment.

TMJ disk out: Having popping/clicking TMJ noises not necessarily a problem. Many people experience these noises. Without pain or limitation of function the noise itself is not an issue. If you have locking or limited movement, "ear" pain, headaches, morning jaw stiffness/soreness, difficulty chewing, bruxism, previous jaw injuries or other jaw conditions, the problem is more serious. Then see a TMJ specialist.