This work was supported by the National Natural Science Foundation of China(Grant No.12072055,11872135,U20A20390,U22A20314);Natural Science Foundation of Beijing(Grant No.L212063);the Fundamental Research Funds for the Central Universities,the 111 Project(No.B13003);the National Research Program of China(Grant No.2022YFC2504200);Orthodontic research project of youth clinical research fund of Chinese Stomatological Association(Grant No.CSA-O2020-07);Municipal graduate tutor team construction project(dstd201903).
This study aimed to explore the optimal invisible orthodontic force system during the en-mass distalization of two maxillary molars to minimize the side effect of anchorage loss by changing the direction of the applic...