Some cases the patient can not open his big mouth. The cause may be caused by adhesive joints. Stick is loss of movement joints by bone adhesive in the joint or calcification of ligaments around the joint.
Ligament calcification around joints do not hurt but just open your mouth a few centimeters or less. Bone cement in the joints causing pain and limited joint movement more seriously.
Sometimes relaxing exercises can help patients with limited mouth open, but patients with calcification or bone adhesion require surgery to restore movement of the jaw.