TMJ stands for Temporomandibular Joint, which is the joint that connects the jawbone to the skull. TMD stands for Temporomandibular Disorder, which refers to a group of conditions that affect the TMJ and the surrounding muscles, nerves, and tissues.
In other words, TMJ is the joint itself, while TMD is a set of conditions that can affect the joint and cause pain and discomfort. Some common symptoms of TMD include jaw pain, stiffness or locking of the jaw, clicking or popping sounds when opening or closing the mouth, headaches, and ear pain.
It's important to note that TMD can have different causes, such as jaw injury, teeth grinding, arthritis, stress, or misalignment of the teeth or jaw. Treatment for TMD may include lifestyle changes, such as avoiding hard or chewy foods, practicing stress management techniques, or physical therapy. In more severe cases, medication or surgery may be necessary. It's always best to consult with a healthcare professional if you suspect you have TMD.