Let's start by briefly going over what TMJ disorder is: TMJ disorder (also called TMJ syndrome) is a blanket term for acute or chronic inflammation of the temporomandibular joint (which is what connects your jaw to your skull). The most common causes range from bruxism (teeth grinding), trauma, excessive nail biting, degenerative joint diseases and a host of others. Essentially, TMJ disorder is quite common. The biggest symptoms are discomfort and sometimes pain in your jaw, difficulty in chewing, earache, headache [...]