Hard-soft tissue changes with the Twinblock appliance in Class Ⅱ malocclusion patients
Cui Li-juan, Liu Ya-fei, Zuo Yan-ping, Lü Tong, Liu Xin, Liu Xue-cong, Chen Wen-jing
Chinese Journal of Tissue Engineering Research . 2010, (
9
): 1572 -1576 . DOI: 10.3969/j.issn.1673-8225.2010.09.012