A recent article in an Irish newspaper is causing quite a stir here in the United States for claiming that a new form of ear insert can alleviate some of the symptoms of temporomandibular joint (TMJ) disorder. The catch: It’s from right here in America, and most people here have never heard of it. It’s a custom-fit device called Cerezen, and it sits just inside the ear canal like a hearing aid might. But instead of helping you hear, Cerezen claims to help stop bruxism (also known as teeth grinding) and alleviate pain-causing pressure on the muscles and joints affected by TMJ disorder.