Association of sleep bruxism with obstructive sleep apnea and gastroesophageal reflux disease: a cross-sectional study in Egyptian governmental dental clinics. - Zamzam H; Ibreheem EM; Elboraey AN; Elhoteiby MM; Gharib A; Sabry E; Adel N; Yasser A; Ramzy MI; Moussa AR (BMC oral health, 2026)