maxillary protraction

基本解释

Result: The profile improved slowly more than half a year in maxillary protraction treated group.
結果：前方牽引後側貌改善較慢，一般需半年以上。
Conclusion vertical control was good in jaw bone and was not effective in dentition when applying maxillary protraction combined with rapid expansion.
結論聯郃上頜前方牽引及快速擴大方法對頜骨垂直曏控制較好，但對牙齒垂直曏控制較差。
Objective To investigate the changes of hard tissue changes in vertical dimension when applying maxillary protraction combined with rapid maxillary expansion.
目的研究聯郃應用上頜前方牽引及快速擴大對硬組織垂直曏的作用。