Abstract
ObjectivesTo evaluate the effect of palatal expansion on nasal airway resistance in patients with maxillary transversal constriction using rhinomanometry. Materials and methodsTwenty patients (12 females and 8 males) aged 7–11 years with monolateral or bilateral crossbite or with transversal maxillary constriction without crossbite, underwent rhinomanometric examination before (T0) and 9 months after rapid palatal expansion (T1). Total airway flow and nasal resistance were assessed during inspiration and expiration. ResultsNasal airway resistance decreased significantly after rapid maxillary expansion (P<.05). ConclusionsRhinomanometric examination detects an improvement in nasal resistance after rapid palatal expansion.
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