When you experience facial pain, it is natural to clench your teeth. However, because the jaw has become misaligned, you may also find yourself grinding because the surfaces of the teeth no longer meet properly. Clenching and grinding are a means to gain temporary relief from pain, but can make other symptoms of TMD worse, resulting in a vicious cycle of pain and discomfort. Over time, it may cause deep bite and misaligned teeth requiring expensive orthodontic treatment.