Clinical Research Directory

Inclusion Criteria: * Female individuals aged 18-30 years * Voluntary agreement to participate in the study and approval of the online informed consent form For the bruxism group: * Self-reported teeth clenching and/or grinding behavior during wakefulness or sleep within the past 6 months * Presence of clinical findings supporting bruxism (e.g., tooth wear patterns, masseter/temporalis muscle tenderness) identified during a clinical examination conducted at the Faculty of Dentistry For the non-bruxism group: * No self-reported teeth clenching or grinding behavior * Absence of clinical findings supporting bruxism upon examination Bruxism classification will be performed in accordance with the current international consensus, based on self-report combined with clinical findings, within the framework of "probable bruxism" (Verhoeff et al., 2025). Exclusion Criteria: * Diagnosed temporomandibular joint (TMJ) dysfunction or significant jaw pain syndromes * History of major pelvic surgery; early postpartum period (\<1 year) or current pregnancy * Neurological disorders (e.g., multiple sclerosis, peripheral neuropathies) * Presence of active urogenital or colorectal infection/disease * Diagnosed pelvic floor pathologies (e.g., advanced pelvic organ prolapse, severe urinary/fecal incontinence) * Chronic use of opioids, anticholinergic agents, or muscle relaxants * Severe psychiatric disorders (e.g., diagnosed major depressive disorder, generalized anxiety disorder) * Receipt of any bruxism-related treatment within the past 6 months (e.g., occlusal splint therapy, botulinum toxin injections, intensive physiotherapy)