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.
Types of Jaw Pain. Temporomandibular Joint Disorder (TMJ). One of the more common causes of jaw pain, TMJ usually occurs as the result of a problem with the bones, ligaments, and/or other tissues that make up the temporomandibular joint, which connects your lower jaw bone to your skull. TMJ may cause jaw pain that feels like a toothache, headache, or earache. Teeth Grinding (Bruxism). Teeth grinding can cause jaw pain, and, since many people grind their teeth while they are asleep, you may not be aware that you're doing it. Some research suggests that up to 8% of adults grind their teeth during sleep.