Bruxomanianoun
Compulsive grinding of the teeth (while awake).
Bruxismnoun
(dentistry) The habit or practice of grinding the teeth, as while sleeping, or due to stress or certain drugs.
Bruxismnoun
involuntarily or unconsciously clenching or grinding the teeth, typically during sleep
Bruxism
Bruxism is excessive teeth grinding or jaw clenching. It is an oral parafunctional activity; i.e., it is unrelated to normal function such as eating or talking.