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The temporomandibular joint (TMJ) is a hinge that connects the lower jaw to the skull and allows to move it up and down and side to side.
You can experience problems when the jaw pivots when opening and closing the mouth or during lateral movements.
Thus, the TMJ and masticatory muscles are affected and cause a dysfunction called temporomandibular joint disorder (TMD).
Most experts believe that mental or physical tasks such as grueling efforts or stressful situations can cause or aggravate TMD syndrome. This disorder is mainly caused by overworked muscles, due particularly to teeth grinding and clenching (bruxism).