INTRODUCTION: Mouth breathing (MB) is an etiological factor for sleep-disordered breathing (SDB) during childhood. The habit of breathing through the mouth may be perpetuated even after airway clearance. Both habit and obstruction may cause facial muscle imbalance and craniofacial changes. https://safeersappliancers.shop/product-category/neff-b57vs24h0b-n90-hide-and-slide-oven/