腭中缝扩张
Palatine suture dilated
以上为机器翻译结果，长、整句建议使用 人工翻译 。
目的：本研究比较了两脚和四脚腭快速扩张器在打开腭中缝和牙齿扩张的效果。
Objective:The purpose of this study was to determine the difference, if any, between midpalatal suture separation and dental expansion produced between 2-points or the 4-points group.
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