TY  - GEN
AU  - Qin,Fang
AU  - Zhou,Yu
TI  - The influence of bracket type on the external apical root resorption in class I extraction patients - a retrospective study
SN  - 1472-6831
PY  - 2019///1127
KW  - Humans
KW  - Incisor
KW  - Maxilla
KW  - Orthodontic Brackets
KW  - Retrospective Studies
KW  - Root Resorption
KW  - Tooth Extraction
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1186/s12903-019-0743-3
ER  -