Temporomandibular joint disorder (TMJ or TMD) can have many surprising impacts on your body. People are surprised to learn that TMJ can lead to headaches, back pain, or tingling fingers. These effects are surprising in part because they can be distant from the source in the jaw joint. But they can also be surprising because the link isn’t immediately obvious, like ringing in the ears .
Now researchers have demonstrated that there may be a connection between TMJ and a reduced flow of saliva. We don’t know why this connection might be, or even if it’s really a causal link, but if it does turn out to be true, it can contribute to another symptom of TMJ: excessive tooth wear.