Morphological Changes of the Epipharynx as a Result of Rapid Maxillary Expansion in Children

Rapid maxillary expansion（RME）is a technique used to treat dental malalignment. Consensus has yet be reached changes in the epipharyngeal region associated with RME. The objective of this study was ascertain morphological that occur as result In present study, comparative investigation pharyngeal tonsils and airway on lateral cephalograms scanned before after RME therefore performed. Fourteen patients who underwent orthodontic treatment for malalignment by were included. mean length tonsil（A）was 114.65 pixels 108.64 value space（N）was 210.72 233.95 A/N ratio 0.547 0.466 tonsil（Pt）area 16181.14 16407.71 airway（Air）area 12488.96 16040.64 Pt / Ep（Ep = + Air）area 0.570 0.502 showed Pt/Ep ratios decreased significantly N Air area values also increased significantly, but there no significant A values. It concluded decrease due