A retrospective study on incisor root resorption in patients treated with bracketless invisible appliance and straight wire appliance

WANG Guan, YANG Lu, ZHANG Yu-feng, LUO San-lian, ZHENG Ji-wei

Shanghai Journal of Stomatology . 2017, (1): 121 -124 . DOI: 10.19439/j.sjos.2017.01.027