Persistent mouth breathing is a sign of underlying dysfunction—it is frequently a symptom of structural or physiological imbalances that can seriously compromise systemic well-being, especially in children. While many assume that breathing through the mouth is a personal habit, the truth is that persistent oral respiration can induce profound changes in jaw morphology, occlusion, and even postural equilibrium. Orthodontic care plays a pivotal role in identifying and correcting the fundamental origins of this condition—not just through alignment correction—but by reestablishing physiologically optimal respiration.

One of the most common causes of mouth breathing is nasal airway obstruction, which may stem from enlarged tonsils or adenoids, 表参道 歯列矯正 septal deformity, persistent rhinitis, or constricted nasal valves.