Study on soft and hard tissue changes and stability of early treatment of Class Ⅱ division 1 malocclusion with T4K appliances

TIAN Li-li, ZHANG Jing-long, JIANG Yong

Shanghai Journal of Stomatology . 2019, (6): 662 -665 . DOI: 10.19439/j.sjos.2019.06.022