This study investigated the effects of adding cervical and sacroiliac mobilization to a Pilates-based exercise program on pain, perceived stress, pain catastrophizing, kinesiophobia, jaw functional limitation, cervical range of motion, cervical joint position error, and sacroiliac joint screening findings in individuals with bruxism. Thirty-eight participants were randomly allocated to a Pilates-only group (n=19) or a Manual Therapy + Pilates group (n=19). Both groups completed an 8-week, twice-weekly Pilates protocol (16 sessions); the Manual Therapy + Pilates group additionally received cervical and sacroiliac mobilization.