With overbite or underbite, the pressure on different parts of the jaw is not evenly distributed. This can cause problems not only with premature failure of any given tooth but cause temporomandibular joint syndrome (TMJ). This occurs when the temporomandibular joints, which connect the lower jaw to the skull on either side of the mouth, go out of alignment. TMJ can result in jaw pain, headaches, earaches, clicking and popping, and a number of other symptoms.