J-hook相关论文
目的 探讨Tweed-Merrifield定向力矫治技术对前突高角病例的矫治效果.方法 根据Tweed-Merrifield定向力技术原理对20例前突高角患......
Apical Root Resorption in Maxillary Incisors When Employing Micro-implant and J-hook Headgear Anchor
This study evaluated,over a 4-month study period,the amount of apical root resorption occurring in maxillary central inc......