The two case studies in this article show the effect on bruxism of a novel biofeedback splint (bruXane). A pressure sensor, vibration module, and data storage module to record bruxing events are integrated into a maxillary occlusal splint worn, as a rule, at night. When bruxing occurs, the pressure sensor triggers a motor that generates a vibrating sensation in the maxilla and, simultaneously via bone conduction, a buzzing sound. As a result of this biofeedback, the wearer's bruxing is interrupted or reduced and a positive, therapeutic effect on bruxism is achieved. With it, tendentially, a longer-term learning process leading to less bruxing appears to occur. Concurrently, the readable bruxing data enables conclusions to be drawn about the causes and types of bruxism that is occurring. Keywords: bruxism, electromyography, craniofacial pain, contingent electrical stimulation, biofeedback, TMD, bruXane, occlusal splint