Is bruxism (teeth-grinding) & tmj (temporomandibular joint dysfunction) related?

Definitely: Someone may grind their teeth for a number of reasons. Often, the problem occurs because the muscles of the face and jaw are trying to get the teeth in a comfortable position. The muscles may be in spasm, you may have a tmj/tmd problem, stress, infection. Best to see a dentist asap. Often thew cause is difficult to determine, so may have to treat the symptoms with a mouthpiece.

Bruxism: Sleep bruxism is classified as a sleep related movement disorder and is not related to the how the teeth fit together. It is sometimes thought that sleep bruxism is responsible for TMJ problems but the literature is non conclusive on that issue.

Yes: When you clench or grind you load your jaw joint and muscles in your cheek with a tremendous amount of pressure. This pressure can eventually lead to a tremendous pain in the joint. Clicking, limited opening, and pain can be troublesome and a dds should be consulted for help. Hope all is well.

Yes: Yes, Bruxism exacerbates TMD and can in some cases be causative.