Jaw pain can be caused by a number of factors, including disc displacement in the temporomandibular joint (TMJ). But did you know that there are two types of disc displacement: with reduction and without reduction? 👉 Disc displacement with reduction: In this type, the disc shifts out of its normal position but returns to its proper place when the jaw opens. Symptoms may include clicking or popping noises, limited jaw movement, and occasional pain. 👉 Disc displacement without reduction: In this