International Telemetering Conference Proceedings / October 26-29, 1992 / Town and Country Hotel and Convention Center, San Diego, California / This paper describes a biotelemetric application whereby information of tooth contact pressure from within the mouth of a human subject is transmitted to a bedside receiver where it is processed and used in the biofeedback treatment of nocturnal bruxism (grinding of the teeth). Bruxing information is encoded on a pulse width modulated 313 MHZ carrier. Issues that are addressed include miniaturization of the transmitter, minimization of power requirements, stabilization of carrier frequency, receiver selection, and the various problems associated with getting a radio frequency signal out of the mouth.