According to the USDA, heavy cream can be stored in the refrigerator (opened or unopened) for up to a month. 1  This assumes that it has been kept at a constant refrigerator temperature and not left out on the counter for stretches of time. Discard any cream with mold or an off odor.
However, one of the most common causes of lockjaw, as already mentioned, is TMJ disorder. TMJ disorder refers to a syndrome that affects the temporomandibular joint, commonly called the TMJ, which connects the jaw with the bottom of the skull.
1 When this joint is injured or damaged, it can lead to a disorder called temporomandibular joint (TMJ) syndrome. 2  Causes of temporomandibular joint (TMJ) syndrome include injury to the teeth or jaw, misalignment of the teeth or jaw, teeth grinding, poor posture, stress, arthritis, and gum chewing.he injured temporomandibular joint leads to pain with chewing, clicking, and popping of the jaw; swelling on the sides of the face; nerve inflammation; headaches; tooth grinding (bruxism); Eustachian tube dysfunction; and sometimes dislocation of the temporomandibular joint.