Does teeth clenching cause all day pain?

It can: It sure can. Make an appointment with a qualified dentist and have him evaluate you. Good luck.

Possibly: You may have developed a TMJ problem or myofacial pain dysfunction syndrome both of which can cause facial pain. Many other things can also potentially be causing your pain and the only way to be sure is to see your dental professional.

Teeth clenching: Clenching your teeth can be destructive to your teeth, bone, and gum tissues. It can lead to gum recession exposing the roots of the teeth and thus making them more painful or sensitive. A night guard can help but get an exam with a dentist or orthodontist.