Treatment of anterior teeth fan-shaped displacement caused by periodontitis with invisible orthodontic appliance without brackers: A case report and literature review

Xinyu LIU,Kepeng ZHANG,Xinyi LI,Han BAO,Haoyan ZHANG,Ling HU,Xianchun ZHU

Journal of Jilin University(Medicine Edition) . 2023, (4): 1046 -1052 . DOI: 10.13481/j.1671-587X.20230428