cheekbiting

cheekbiting

The undesired interposition of the mucous membrane lining of the cheek between the upper and lower teeth causing pain and local injury.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
References in periodicals archive ?
Most of the ulceration are caused due to local cause such as trauma, self-elicited injuries like cheekbiting, stress, sharp edges of the tooth.